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[nazev] => Mikrogenerátor jako mikromechanická soustava
[nazev_orig] => Mikrogenerátor jako mikromechanická soustava
[duvernost_udaju_id] => S
[popis] => Obecnou motivací práce bylo hledání alternativ pro napájení bezdrátových zařízení. V úvodní části práce jsou proto analyzovány jednotlivé alternativy možných zdrojů elektrické energie pro tento účel a jsou stručně vymezeny oblasti jejich použití. Z uvedeného je zřejmé, že použití galvanických článků a akumulátorových baterií není pro řadu aplikací nejvhodnějším řešením.
Z výsledků analýzy se jako nejvhodnější nabízí řešení uvedeného problému novým zařízením, které vyrábí elektrickou energii z některé formy všudypřítomné okolní energie. V každém prostředí se totiž nachází okolní energie v určité formě, která je vhodná k přeměně na elektrickou energii. Jedná se např. o solární energii, energii teplotního gradientu, energii proudících tekutin, atd. Ve většině strojních soustav, které jsou předmětem výzkumu na školicím pracovišti, se vyskytují mechanické vibrace. Je nepochybné, že tyto vibrace patří k vhodným okolním zdrojům, jejichž mechanická energie je taktéž využitelná pro výrobu elektrické energie. S využitím tohoto principu lze tedy navrhovat různá autonomní zařízení, např. pasivní bezdrátové senzory různých fyzikálních veličin s vlastním, tedy nezávislým napájením.
Tato práce je soustředěna na analýzu a návrh vibračního mikrogenerátoru, vyrábějícího elektrickou energii z mechanické energie okolních vibrací. Tento vibrační mikrogenerátor by měl sloužit jako zdroj elektrické energie s výkonem minimálně 1 mW, který je postačující pro napájení nejrůznějších bezdrátových senzorů. Vibrační mikrogenerátor musí být konstruován tak, aby jeho resonanční frekvence byla shodná s frekvencí okolních vibrací. Řešený vibrační mikrogenerátor je koncipován jako lineární generátor s pohyblivým magnetickým budicím obvodem a pevnou cívkou kotvy. Při odpovídajícím mechanickém naladění vibračního mikrogenerátoru způsobí okolní vibrace relativní kmitavý pohyb magnetického budicího obvodu mikrogenerátoru vůči pevné cívce, ve které se podle Faradayova zákona elektromagnetické indukce indukuje elektrické napětí.
Celkové rozměry mikrogenerátoru by měly odpovídat požadovanému generovanému výkonu při zadané frekvenci vibrací.
[popis_orig] => Obecnou motivací práce bylo hledání alternativ pro napájení bezdrátových zařízení. V úvodní části práce jsou proto analyzovány jednotlivé alternativy možných zdrojů elektrické energie pro tento účel a jsou stručně vymezeny oblasti jejich použití. Z uvedeného je zřejmé, že použití galvanických článků a akumulátorových baterií není pro řadu aplikací nejvhodnějším řešením.
Z výsledků analýzy se jako nejvhodnější nabízí řešení uvedeného problému novým zařízením, které vyrábí elektrickou energii z některé formy všudypřítomné okolní energie. V každém prostředí se totiž nachází okolní energie v určité formě, která je vhodná k přeměně na elektrickou energii. Jedná se např. o solární energii, energii teplotního gradientu, energii proudících tekutin, atd. Ve většině strojních soustav, které jsou předmětem výzkumu na školicím pracovišti, se vyskytují mechanické vibrace. Je nepochybné, že tyto vibrace patří k vhodným okolním zdrojům, jejichž mechanická energie je taktéž využitelná pro výrobu elektrické energie. S využitím tohoto principu lze tedy navrhovat různá autonomní zařízení, např. pasivní bezdrátové senzory různých fyzikálních veličin s vlastním, tedy nezávislým napájením.
Tato práce je soustředěna na analýzu a návrh vibračního mikrogenerátoru, vyrábějícího elektrickou energii z mechanické energie okolních vibrací. Tento vibrační mikrogenerátor by měl sloužit jako zdroj elektrické energie s výkonem minimálně 1 mW, který je postačující pro napájení nejrůznějších bezdrátových senzorů. Vibrační mikrogenerátor musí být konstruován tak, aby jeho resonanční frekvence byla shodná s frekvencí okolních vibrací. Řešený vibrační mikrogenerátor je koncipován jako lineární generátor s pohyblivým magnetickým budicím obvodem a pevnou cívkou kotvy. Při odpovídajícím mechanickém naladění vibračního mikrogenerátoru způsobí okolní vibrace relativní kmitavý pohyb magnetického budicího obvodu mikrogenerátoru vůči pevné cívce, ve které se podle Faradayova zákona elektromagnetické indukce indukuje elektrické napětí.
Celkové rozměry mikrogenerátoru by měly odpovídat požadovanému generovanému výkonu při zadané frekvenci vibrací.
[klicova_slova] => Vibrace, Energy Harvesting, Energy Scavenging, Vibrační mikrogenerátor, Vibrační generátor, Nízko-výkonový generátor, Resonance, Elektromagnetická indukce.
[klicova_slova_orig] => Vibrace, Energy Harvesting, Energy Scavenging, Vibrační mikrogenerátor, Vibrační generátor, Nízko-výkonový generátor, Resonance, Elektromagnetická indukce.
[url] =>
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[citace_text] => HADAŠ, Z. Mikrogenerátor jako mikromechanická soustava. Brno: VUTIUM, 2007.
[citace_html] => HADAŠ, Z. Mikrogenerátor jako mikromechanická soustava. Brno: VUTIUM, 2007.
[citace_rtf] =>
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author="Zdeněk {Hadaš}",
title="Mikrogenerátor jako mikromechanická soustava",
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publisher="VUTIUM",
address="Brno"
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[nazev_en] => Microgenerator - Micromechanical System
[popis_en] => This Ph.D. thesis deals with an alternative of feeding wireless sensors. This alternative is using of the vibration generator which generates electrical energy from an ambient mechanical vibration. This vibration generator will feed wireless sensors without using of primary batteries. The generator extends time life of the wireless sensor and this sensor can be mounted without any problems inside engineering's constructions or can be placed inside embedded structures. The appropriately vibration generator can produce the required power.
The designed vibration generator will be used as source of energy for wireless sensors developed on base of WISE project. The WISE project researches using wireless sensors in aeronautics applications.
The vibration generator is tuned up to stable resonance frequency of the ambient vibration 34 Hz. The generator is excited by vibration with the amplitude range 50 - 150 m, it means level of vibration 0.2 - 0.7 G. The size of generator is not limited, but the aim is design very small device. The size depends on possibility of the fabrication.
The vibration generator is excited by the mechanical vibration and its construction products relative movement of the magnetic circuit. This movement induces voltage on the coil due to Faraday's law. The vibration generator design is tuned up to the vibration frequency and the generator harvests maximal power during exciting by resonance frequency of the vibration. The design of magnetic circuit and coil is tailored to the resonance mechanism of the vibration generator. The output power depends on the level of vibration and the weight of oscillating mass. The harvesting power depends on quality of the resonance mechanism and the weight of moving mass.
Developed function product of vibration generator is capable generate useful electric power. The vibration generator generates maximal output power around 8 mW with DC voltage 5 V. The output power and voltage depend on the connected electrical load. The generator harvests output power around 4 mW and output voltage 3 V during excitation of an average vibration in an aeronautics application.
The vibration generator has the great potential as the inexhaustible source of electrical energy. This generator can provide sufficient electrical energy for wireless sensors in aeronautics application. The limitation of using vibration generator is usually the operating temperature range, size and weight.
[klicova_slova_en] => Vibration, Energy Harvesting, Energy Scavenging, Vibration Power Generator, Vibration micro-generator, Low-Power Generator, Resonance, Electromagnetic Induction.
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[popis] => The aim of this article is to inform readers about new trends in the development of control algorithms. One of the trends currently gaining popularity is a Model Based Design (MBD) approach. MBD consists of a sequence of several steps, is the sequence being defined by the V-cycle. This new development method plays a role not only in science and research, but also increasingly often in the commercial development of industry applications.
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[klicova_slova_orig] => Modeling, Simulation, DC motor, Hardvare-in-the-loop, EC motor, dSPACE, Model based design, control algorithm,
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[citace_text] => TOMAN, J.; ANČÍK, Z.; SINGULE, V. Hardware-in-the-Loop Testing of Control Algorithms for Brushless DC Motor. In Mechatronics Recent Technological and Scientific Advances. 1. Berlin: Springer Berlin Heidelberg, 2011. p. 165-173. ISBN: 978-3-642-23243-5.
[citace_html] => TOMAN, J.; ANČÍK, Z.; SINGULE, V. Hardware-in-the-Loop Testing of Control Algorithms for Brushless DC Motor. In Mechatronics Recent Technological and Scientific Advances. 1. Berlin: Springer Berlin Heidelberg, 2011. p. 165-173. ISBN: 978-3-642-23243-5.
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publisher="Springer Berlin Heidelberg",
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[nazev_en] => Tester thermoelectric generators
[popis_en] => This is a tester thermoelectric generators. The measurement is performed using the NI RIO. During the experiment, the device monitors the temperature of hot and cold side of the tester. Furthermore, measuring and recording the output voltage and output current of the thermoelectric generator.
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[nazev] => Introduction to Design of Speed Controller for Fuel Pump
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[duvernost_udaju_id] => S
[popis] => This contribution presents an efficient approach to
design of speed controller for fuel pump. The fuel pump is used
for two-shaft turbine engine concept with reducer driven by a
free turbine. Controlling the amount of fuel injection into the
combustion chamber is based on the speed control of the fuel
pump which is controlled by the engine control unit according to
the desired power mode. The resulting flow of fuel into the
combustion chamber beside the pump speed regulator influences
the bypass which constricts the return fuel according to pressure
in the nozzles. Control characteristic of the bypass controller is
fixed and is determined by its structure. The only adjustable
parameter is the speed of the fuel pump. This paper describes the
design procedure of this fuel pump using a two-level controller
with speed and subordinate current-torque control.
[popis_orig] => This contribution presents an efficient approach to
design of speed controller for fuel pump. The fuel pump is used
for two-shaft turbine engine concept with reducer driven by a
free turbine. Controlling the amount of fuel injection into the
combustion chamber is based on the speed control of the fuel
pump which is controlled by the engine control unit according to
the desired power mode. The resulting flow of fuel into the
combustion chamber beside the pump speed regulator influences
the bypass which constricts the return fuel according to pressure
in the nozzles. Control characteristic of the bypass controller is
fixed and is determined by its structure. The only adjustable
parameter is the speed of the fuel pump. This paper describes the
design procedure of this fuel pump using a two-level controller
with speed and subordinate current-torque control.
[klicova_slova] => speed controller; current-torque control; fuel pump control; PID controller
[klicova_slova_orig] => speed controller; current-torque control; fuel pump control; PID controller
[url] =>
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[identifikator] => ISBN 978-80-214-4817-9
[identifikator_popis] => ISBN - Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014
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[citace_text] => ANDRŠ, O.; KOVÁŘ, J.; HADAŠ, Z. Introduction to Design of Speed Controller for Fuel Pump. In Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014. 1. Brno: VUT v Brně, 2014. p. 672-676. ISBN: 978-80-214-4817-9.
[citace_html] => ANDRŠ, O.; KOVÁŘ, J.; HADAŠ, Z. Introduction to Design of Speed Controller for Fuel Pump. In Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014. 1. Brno: VUT v Brně, 2014. p. 672-676. ISBN: 978-80-214-4817-9.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT110661,
author="Ondřej {Andrš} and Jiří {Kovář} and Zdeněk {Hadaš}",
title="Introduction to Design of Speed Controller for Fuel Pump",
booktitle="Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014",
year="2014",
series="1",
number="1",
pages="672--676",
publisher="VUT v Brně",
address="Brno",
doi="10.1109/MECHATRONIKA.2014.7018341",
isbn="978-80-214-4817-9"
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[nazev_en] => Introduction to Design of Speed Controller for Fuel Pump
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design of speed controller for fuel pump. The fuel pump is used
for two-shaft turbine engine concept with reducer driven by a
free turbine. Controlling the amount of fuel injection into the
combustion chamber is based on the speed control of the fuel
pump which is controlled by the engine control unit according to
the desired power mode. The resulting flow of fuel into the
combustion chamber beside the pump speed regulator influences
the bypass which constricts the return fuel according to pressure
in the nozzles. Control characteristic of the bypass controller is
fixed and is determined by its structure. The only adjustable
parameter is the speed of the fuel pump. This paper describes the
design procedure of this fuel pump using a two-level controller
with speed and subordinate current-torque control.
[klicova_slova_en] => speed controller; current-torque control; fuel pump control; PID controller
[vysledek_datum] => 2014-12-05T00:00:00+01:00
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[4] => Array
(
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[duvernost_udaju_id] => S
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[klicova_slova_orig] => energy harvesting, aircraft systems, energy autonomous devices, zero-power sensor, backup power source, WSN
[url] => http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7018256&queryText%3Denergy+harvesting+for+aerospace%3A+application+possibilities
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[citace_text] => JANÁK, L.; SINGULE, V. Energy Harvesting for Aerospace: Application Possibilities. In Proceedings of the 16th International Conference on Mechatronics - Mechatronika 2014. Brno: Fakulta strojního inženýrství, VUT v Brně, 2014. s. 183-187. ISBN: 978-80-214-4817-9.
[citace_html] => JANÁK, L.; SINGULE, V. Energy Harvesting for Aerospace: Application Possibilities. In Proceedings of the 16th International Conference on Mechatronics - Mechatronika 2014. Brno: Fakulta strojního inženýrství, VUT v Brně, 2014. s. 183-187. ISBN: 978-80-214-4817-9.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT110664,
author="Luděk {Janák} and Vladislav {Singule}",
title="Energy Harvesting for Aerospace: Application Possibilities",
booktitle="Proceedings of the 16th International Conference on Mechatronics - Mechatronika 2014",
year="2014",
pages="183--187",
publisher="Fakulta strojního inženýrství, VUT v Brně",
address="Brno",
doi="10.1109/MECHATRONIKA.2014.7018256",
isbn="978-80-214-4817-9",
url="http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7018256&queryText%3Denergy+harvesting+for+aerospace%3A+application+possibilities"
}
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[popis_en] => This paper deals with the state of art in the field of energy harvesting systems. The paper mainly aims to the novel field of energy harvesting systems utilized in aerospace environment. Their most prospective applications in zero-power sensors and backup power sources for low-power systems are outlined and discussed. Vibration and thermoelectric energy harvesters are presented as a most suitable alternative low-power sources for aerospace applications. Consequently, the system-level architecture of zero-power sensor and backup power source are described. Practical realization of energy harvesting systems for aerospace is shown on case studies of devices developed at the Brno University of Technology.
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(
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[ex_vysledek_id] => 111326
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[nazev] => Non-invasive displacement measurement of lightweight structures under dynamic excitations
[nazev_orig] => Non-invasive displacement measurement of lightweight structures under dynamic excitations
[duvernost_udaju_id] => S
[popis] => The present article deals with the processing of data obtained by non-invasive measurement methods of instantaneous displacement of lightweight structures. This data is necessary to evaluate tuning-up of characteristics of an electro-magnetic vibration energy harvester, which is used for energy harvesting from these ambient mechanical vibrations. The electro-magnetic vibration energy harvester is device for powering of low power consumption wireless sensors without any external source of energy. The primary source of energy is only mechanical vibrations in place of wireless sensor and the operation without primary batteries is required. These techniques of wireless measurement are commonly used in aeronautics applications. The knowledge of mechanical vibrations in place of wireless sensors with vibration energy harvester is used for development of vibration energy harvester design.
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[klicova_slova] => high-speed camera, vibration, displacement
[klicova_slova_orig] => high-speed camera, vibration, displacement
[url] =>
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[citace_text] => KOTEK, L.; HOLUB, M.; VETIŠKA, J.; HADAŠ, Z.; BLECHA, P. Non-invasive displacement measurement of lightweight structures under dynamic excitations. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). American Society of Mechanical Engineers (ASME), 2015. p. 5-11. ISBN: 978-0-7918-4648-3.
[citace_html] => KOTEK, L.; HOLUB, M.; VETIŠKA, J.; HADAŠ, Z.; BLECHA, P. Non-invasive displacement measurement of lightweight structures under dynamic excitations. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). American Society of Mechanical Engineers (ASME), 2015. p. 5-11. ISBN: 978-0-7918-4648-3.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT110671,
author="Luboš {Kotek} and Michal {Holub} and Jan {Vetiška} and Zdeněk {Hadaš} and Petr {Blecha}",
title="Non-invasive displacement measurement of lightweight structures under dynamic excitations",
booktitle="ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",
year="2015",
number="4B",
pages="5--11",
publisher="American Society of Mechanical Engineers (ASME)",
doi="10.1115/IMECE2014-37559",
isbn="978-0-7918-4648-3"
}
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[nazev_en] => Non-invasive displacement measurement of lightweight structures under dynamic excitations
[popis_en] => The present article deals with the processing of data obtained by non-invasive measurement methods of instantaneous displacement of lightweight structures. This data is necessary to evaluate tuning-up of characteristics of an electro-magnetic vibration energy harvester, which is used for energy harvesting from these ambient mechanical vibrations. The electro-magnetic vibration energy harvester is device for powering of low power consumption wireless sensors without any external source of energy. The primary source of energy is only mechanical vibrations in place of wireless sensor and the operation without primary batteries is required. These techniques of wireless measurement are commonly used in aeronautics applications. The knowledge of mechanical vibrations in place of wireless sensors with vibration energy harvester is used for development of vibration energy harvester design.
[klicova_slova_en] => high-speed camera, vibration, displacement
[vysledek_datum] => 2015-03-03T00:00:00+01:00
)
[6] => Array
(
[vysledek_id] => 110672
[vysledek_druh_id] => CONPA
[ex_vysledek_id] => 111327
[vysledek_rok] => 2014
[nazev] => Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement
[nazev_orig] => Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement
[duvernost_udaju_id] => S
[popis] => Optical methods for measuring displacement is a key enabling technology allowing evaluate vibration of the light weighted objects. In optical evaluation of vibration of object displacement with high speed camera, systematical errors occurs in determining the displacement because of the tracking mark properties. The present article compares the results of optical tracking of four most common tracking marks (Filmmakin, Ridgeline creative, Eye fish and Blurry vision) and also own designed tracking mark (FMEIII). To verify the suitability of different tracking marks with high-speed camera, the test stand were constructed and measured data were compared to high-speed laser interferometer measurement.
[popis_orig] => Optical methods for measuring displacement is a key enabling technology allowing evaluate vibration of the light weighted objects. In optical evaluation of vibration of object displacement with high speed camera, systematical errors occurs in determining the displacement because of the tracking mark properties. The present article compares the results of optical tracking of four most common tracking marks (Filmmakin, Ridgeline creative, Eye fish and Blurry vision) and also own designed tracking mark (FMEIII). To verify the suitability of different tracking marks with high-speed camera, the test stand were constructed and measured data were compared to high-speed laser interferometer measurement.
[klicova_slova] => tracking marks, high-speed camera, measurement
[klicova_slova_orig] => tracking marks, high-speed camera, measurement
[url] => http://mechatronika2014.cedupoint.cz/
[oecd_obor_id] => 20306
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[odpovedny_utvar_nazev] => Institute of Production Machines, Systems and Robotics
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[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
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[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => KOTEK, L.; HOLUB, M.; VETIŠKA, J.; ŠUBRT, K.; HADAŠ, Z.; BLECHA, P.
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[kod_doi] => 10.1109/MECHATRONIKA.2014.7018308
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[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-214-4817-9
[identifikator_popis] => ISBN - Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014
[riv_dodavka_id] => 1467
[riv_dodavka_oznaceni] => RIV18-TA0-26510___
[riv_dodavka_rok] => 2017
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[citace_text] => KOTEK, L.; HOLUB, M.; VETIŠKA, J.; ŠUBRT, K.; HADAŠ, Z.; BLECHA, P. Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement. In Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014. 1. Brno: Brno University of Technology, 2014. p. 489-493. ISBN: 978-80-214-4817-9.
[citace_html] => KOTEK, L.; HOLUB, M.; VETIŠKA, J.; ŠUBRT, K.; HADAŠ, Z.; BLECHA, P. Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement. In Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014. 1. Brno: Brno University of Technology, 2014. p. 489-493. ISBN: 978-80-214-4817-9.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT110672,
author="Luboš {Kotek} and Michal {Holub} and Jan {Vetiška} and Kamil {Šubrt} and Zdeněk {Hadaš} and Petr {Blecha}",
title="Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement",
booktitle="Proceedings of the 16th International Conference on Mechatronics – Mechatronika 2014",
year="2014",
series="1",
number="1",
pages="489--493",
publisher="Brno University of Technology",
address="Brno",
doi="10.1109/MECHATRONIKA.2014.7018308",
isbn="978-80-214-4817-9",
url="http://mechatronika2014.cedupoint.cz/"
}
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[nazev_en] => Comparison of Suitability of Tracking Marks for Optical Measurement of Displacement
[popis_en] => Optical methods for measuring displacement is a key enabling technology allowing evaluate vibration of the light weighted objects. In optical evaluation of vibration of object displacement with high speed camera, systematical errors occurs in determining the displacement because of the tracking mark properties. The present article compares the results of optical tracking of four most common tracking marks (Filmmakin, Ridgeline creative, Eye fish and Blurry vision) and also own designed tracking mark (FMEIII). To verify the suitability of different tracking marks with high-speed camera, the test stand were constructed and measured data were compared to high-speed laser interferometer measurement.
[klicova_slova_en] => tracking marks, high-speed camera, measurement
[vysledek_datum] => 2014-12-03T00:00:00+01:00
)
[7] => Array
(
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[nazev] => Multidisciplinary Multi-Body Modeling of Machine Tools
[nazev_orig] => Multidisciplinary Multi-Body Modeling of Machine Tools
[duvernost_udaju_id] => S
[popis] => This paper deals with a multi-body modeling of machine tools with actuators. The aim of this paper is demonstration of a multibody dynamics during design process of the machine tool and choice of an optimal actuator. The modern machine tool is a mechatronic system and usage of simulation modeling is a necessary step in the development process. The model-based design of the several modern machine tool assemblies is presented in this paper. This modeling technique can be used to determine the force of interactions of individual machine parts, dimensional drives, modal and harmonic analysis, etc.
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[klicova_slova] => multi-body model, machine tool, actuator, control, mechatronics
[klicova_slova_orig] => multi-body model, machine tool, actuator, control, mechatronics
[url] =>
[oecd_obor_id] => 20301
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[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-86246-42-0
[identifikator_popis] => ISBN - Engineering mechanics 2015 - extended abstracts
[riv_dodavka_id] => 1318
[riv_dodavka_oznaceni] => RIV16-MSM-26210___
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[citace_text] => VETIŠKA, J.; HADAŠ, Z.; HOLUB, M. Multidisciplinary Multi-Body Modeling of Machine Tools. In Engineering mechanics 2015 - extended abstracts. 2015. p. 344-345. ISBN: 978-80-86246-42-0.
[citace_html] => VETIŠKA, J.; HADAŠ, Z.; HOLUB, M. Multidisciplinary Multi-Body Modeling of Machine Tools. In Engineering mechanics 2015 - extended abstracts. 2015. p. 344-345. ISBN: 978-80-86246-42-0.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT114702,
author="Jan {Vetiška} and Zdeněk {Hadaš} and Michal {Holub}",
title="Multidisciplinary Multi-Body Modeling of Machine Tools",
booktitle="Engineering mechanics 2015 - extended abstracts",
year="2015",
pages="344--345",
isbn="978-80-86246-42-0"
}
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[nazev_en] => Multidisciplinary Multi-Body Modeling of Machine Tools
[popis_en] => This paper deals with a multi-body modeling of machine tools with actuators. The aim of this paper is demonstration of a multibody dynamics during design process of the machine tool and choice of an optimal actuator. The modern machine tool is a mechatronic system and usage of simulation modeling is a necessary step in the development process. The model-based design of the several modern machine tool assemblies is presented in this paper. This modeling technique can be used to determine the force of interactions of individual machine parts, dimensional drives, modal and harmonic analysis, etc.
[klicova_slova_en] => multi-body model, machine tool, actuator, control, mechatronics
[vysledek_datum] => 2015-05-11T00:00:00+02:00
)
[8] => Array
(
[vysledek_id] => 131170
[vysledek_druh_id] => CONPA
[ex_vysledek_id] => 121764
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[nazev] => Virtual Reality in Context of Industry 4.0
[nazev_orig] => Virtual Reality in Context of Industry 4.0
[duvernost_udaju_id] => S
[popis] => In industrial environments, it is often difficult and
expensive to collect a good amount of data to adequately train
expert systems for regression purposes. Therefore the usage of
already available data, related to environments showing similar
characteristics, could represent an effective approach to find a
good balance between regression performance and the amount of
data to gather for training. In this paper, the authors propose two
alternative strategies for improving the regression performance by
using heterogeneous data, i.e. data coming from diverse
environments with respect to the one taken as reference for testing.
These strategies are based on a standard machine learning
algorithm, i.e. the Artificial Neural Network (ANN). The employed
data came from measurements in industrial plants for energy
production through the combustion of coal powder. The powder is
transported in air within ducts and its size is detected by means of
Acoustic Emissions (AE) produced by the impact of powder on the
inner surface of the duct. The estimation of powder size
distribution from AE signals is the task addressed in this work.
Computer simulations show how the proposed strategies achieve a
relevant improvement of regression performance with respect to
the standard approach, using ANN directly on the dataset related
to the reference plant.
[popis_orig] => In industrial environments, it is often difficult and
expensive to collect a good amount of data to adequately train
expert systems for regression purposes. Therefore the usage of
already available data, related to environments showing similar
characteristics, could represent an effective approach to find a
good balance between regression performance and the amount of
data to gather for training. In this paper, the authors propose two
alternative strategies for improving the regression performance by
using heterogeneous data, i.e. data coming from diverse
environments with respect to the one taken as reference for testing.
These strategies are based on a standard machine learning
algorithm, i.e. the Artificial Neural Network (ANN). The employed
data came from measurements in industrial plants for energy
production through the combustion of coal powder. The powder is
transported in air within ducts and its size is detected by means of
Acoustic Emissions (AE) produced by the impact of powder on the
inner surface of the duct. The estimation of powder size
distribution from AE signals is the task addressed in this work.
Computer simulations show how the proposed strategies achieve a
relevant improvement of regression performance with respect to
the standard approach, using ANN directly on the dataset related
to the reference plant.
[klicova_slova] => Virtual Reality; Industry 4.0; Factory of Future; Dynamics; FEM; Atomic Force Microscopy; Microstructures
[klicova_slova_orig] => Virtual Reality; Industry 4.0; Factory of Future; Dynamics; FEM; Atomic Force Microscopy; Microstructures
[url] => http://ieeexplore.ieee.org/abstract/document/7827785/
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[vycet_osob] => KOVÁŘ, J.; MOURALOVÁ, K.; KŠICA, F.; KROUPA, J.; ANDRŠ, O.; HADAŠ, Z.
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[upd_ts] => 2025-09-22
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[identifikator] => ISBN 978-80-01-05882-4
[identifikator_popis] => ISBN - Mechatronika 2016
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[citace_text] => KOVÁŘ, J.; MOURALOVÁ, K.; KŠICA, F.; KROUPA, J.; ANDRŠ, O.; HADAŠ, Z. Virtual Reality in Context of Industry 4.0. In Mechatronika 2016. Praha: Czech Technical University in Prague, Faculty of Electrical Engineering, 2016. p. 1-7. ISBN: 978-80-01-05882-4.
[citace_html] => KOVÁŘ, J.; MOURALOVÁ, K.; KŠICA, F.; KROUPA, J.; ANDRŠ, O.; HADAŠ, Z. Virtual Reality in Context of Industry 4.0. In Mechatronika 2016. Praha: Czech Technical University in Prague, Faculty of Electrical Engineering, 2016. p. 1-7. ISBN: 978-80-01-05882-4.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT131170,
author="Jiří {Kovář} and Kateřina {Mouralová} and Filip {Kšica} and Jiří {Kroupa} and Ondřej {Andrš} and Zdeněk {Hadaš}",
title="Virtual Reality in Context of Industry 4.0",
booktitle="Mechatronika 2016",
year="2016",
pages="1--7",
publisher="Czech Technical University in Prague, Faculty of Electrical Engineering",
address="Praha",
isbn="978-80-01-05882-4",
url="http://ieeexplore.ieee.org/abstract/document/7827785/"
}
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[poznamka_metriky] =>
[nazev_en] => Virtual Reality in Context of Industry 4.0
[popis_en] => In industrial environments, it is often difficult and
expensive to collect a good amount of data to adequately train
expert systems for regression purposes. Therefore the usage of
already available data, related to environments showing similar
characteristics, could represent an effective approach to find a
good balance between regression performance and the amount of
data to gather for training. In this paper, the authors propose two
alternative strategies for improving the regression performance by
using heterogeneous data, i.e. data coming from diverse
environments with respect to the one taken as reference for testing.
These strategies are based on a standard machine learning
algorithm, i.e. the Artificial Neural Network (ANN). The employed
data came from measurements in industrial plants for energy
production through the combustion of coal powder. The powder is
transported in air within ducts and its size is detected by means of
Acoustic Emissions (AE) produced by the impact of powder on the
inner surface of the duct. The estimation of powder size
distribution from AE signals is the task addressed in this work.
Computer simulations show how the proposed strategies achieve a
relevant improvement of regression performance with respect to
the standard approach, using ANN directly on the dataset related
to the reference plant.
[klicova_slova_en] => Virtual Reality; Industry 4.0; Factory of Future; Dynamics; FEM; Atomic Force Microscopy; Microstructures
[vysledek_datum] => 2016-12-07T00:00:00+01:00
)
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(
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[nazev] => Modification of Frame for Synchronous Machine with Permanent Magnet
[nazev_orig] => Modification of Frame for Synchronous Machine with Permanent Magnet
[duvernost_udaju_id] => S
[popis] => The modification of frame for permanent magnet synchronous machine is the aim of this contribution. The frame properties were identified on the base of measurement during motor testing. The eigenfrequency was obtained from the modal analysis of the frame. The results of modal analysis proved that the first eigenfrequency is in the region of the speed with vibration. It was therefore necessary to increase the frame eigenfrequency.
[popis_orig] => The modification of frame for permanent magnet synchronous machine is the aim of this contribution. The frame properties were identified on the base of measurement during motor testing. The eigenfrequency was obtained from the modal analysis of the frame. The results of modal analysis proved that the first eigenfrequency is in the region of the speed with vibration. It was therefore necessary to increase the frame eigenfrequency.
[klicova_slova] => Permanent magnet synchronous machine, Vibration, Modal analysis
[klicova_slova_orig] => Permanent magnet synchronous machine, Vibration, Modal analysis
[url] => https://link.springer.com/chapter/10.1007/978-3-319-65960-2_37
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[identifikator] => ISBN 978-3-319-65959-6
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[citace_text] => HUZLÍK, R.; LOŠÁK, P.; KURFŰRST, J.; ONDRŮŠEK, Č. Modification of Frame for Synchronous Machine with Permanent Magnet. In Mechatronics 2017 Recent Technological and Scientific Advances. Berlín: Springer Verlag, 2018. p. 296-301. ISBN: 978-3-319-65959-6.
[citace_html] => HUZLÍK, R.; LOŠÁK, P.; KURFŰRST, J.; ONDRŮŠEK, Č. Modification of Frame for Synchronous Machine with Permanent Magnet. In Mechatronics 2017 Recent Technological and Scientific Advances. Berlín: Springer Verlag, 2018. p. 296-301. ISBN: 978-3-319-65959-6.
[citace_rtf] =>
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author="Rostislav {Huzlík} and Petr {Lošák} and Jiří {Kurfürst} and Čestmír {Ondrůšek}",
title="Modification of Frame for Synchronous Machine with Permanent Magnet",
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pages="296--301",
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[nazev_en] => Modification of Frame for Synchronous Machine with Permanent Magnet
[popis_en] => The modification of frame for permanent magnet synchronous machine is the aim of this contribution. The frame properties were identified on the base of measurement during motor testing. The eigenfrequency was obtained from the modal analysis of the frame. The results of modal analysis proved that the first eigenfrequency is in the region of the speed with vibration. It was therefore necessary to increase the frame eigenfrequency.
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[popis] => The phenomenon of self-excited vibration during machining still plays a key role in the productivity of a machine tool. The phenomenon was deeply analyzed by many works, but in the new prototype testing, unexpected behavior occurs. The hypothesis is that is caused by nonlinearity. This paper presents the approach of the time domain simulation of grooving cutting process for nonlinear analysis. The simulations compare linear stiffness model with two nonlinear, all these models were built by fitting measured static stiffness data by a regression model and also were built to have a similar response on modal hammer impulse, mainly the similar negative real part of the system response. The main idea for these simulations is to evaluate the effect of nonlinearity on system stability and primarily enables the description of vibration magnitude in the unstable region. The results showed that that nonlinear model has an influence on stability lobes and mainly on the magnitude of vibration in the unstable region which is significantly changed.
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[citace_text] => HADRABA, P.; HADAŠ, Z. Time-Domain Regenerative Chatter Analysis of Non-linear Stiffness System. In Advances in intelligent systems and computing. Advances in Intelligent Systems and Computing. Springer Verlag, 2019. p. 3-10. ISBN: 978-3-030-29992-7. ISSN: 2194-5357.
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[citace_rtf] =>
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title="Time-Domain Regenerative Chatter Analysis of Non-linear Stiffness System",
booktitle="Advances in intelligent systems and computing.",
year="2019",
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[nazev_en] => Time-Domain Regenerative Chatter Analysis of Non-linear Stiffness System
[popis_en] => The phenomenon of self-excited vibration during machining still plays a key role in the productivity of a machine tool. The phenomenon was deeply analyzed by many works, but in the new prototype testing, unexpected behavior occurs. The hypothesis is that is caused by nonlinearity. This paper presents the approach of the time domain simulation of grooving cutting process for nonlinear analysis. The simulations compare linear stiffness model with two nonlinear, all these models were built by fitting measured static stiffness data by a regression model and also were built to have a similar response on modal hammer impulse, mainly the similar negative real part of the system response. The main idea for these simulations is to evaluate the effect of nonlinearity on system stability and primarily enables the description of vibration magnitude in the unstable region. The results showed that that nonlinear model has an influence on stability lobes and mainly on the magnitude of vibration in the unstable region which is significantly changed.
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[nazev] => Využití umělé inteligence pro identifikaci parametrů virtuálního dvojčete servopohonů
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[citace_html] => HUZLÍK, R.; VLACH, R.; KURFŰRST, J.: Využití umělé inteligence pro identifikaci parametrů virtuálního dvojčete servopohonů. (Ověřená technologie)
[citace_rtf] =>
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author="Rostislav {Huzlík} and Radek {Vlach} and Jiří {Kurfürst}",
title="Využití umělé inteligence pro identifikaci parametrů virtuálního dvojčete servopohonů",
year="2022",
note="Verified technology"
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[poznamka_metriky] =>
[nazev_en] => Use of artificial intelligence to identify the parameters of the virtual twin of actuators
[popis_en] => Proven technology describes the possibility of using artificial intelligence to identify the parameters of a virtual twin of actuators
[klicova_slova_en] => servo drives, identification
[vysledek_datum] => 2022-04-29T00:00:00+02:00
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[nazev] => THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS
[nazev_orig] => THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS
[duvernost_udaju_id] => S
[popis] => This paper deals with an approach to study nonlinear chatter analysis, which is based on the synthesis of linear theory for different turning conditions. Mainly, contact nonlinearities play a crucial role in the behavior of the machine tool and the stability of turning operation. However, the analysis of nonlinear systems is challenging because nonlinear system analyzes are often limited to a linearized solution, which may be insufficient to reveal the stability lobe diagram. The presented study proposes a theoretical approach which is based on a synthesis of linearization in the operating point. This approach provides several solutions of stability lobe diagrams which are strongly depending on the loading conditions of the nonlinear system and all solutions are integrated to the final stability lobe diagram. The presented method is applied to a simplified 2D structure between two supports with nonlinear contact stiffness. Resulted analysis of the lobe diagram are compared with results of the time-domine simulations and it shows a good match. This paper shows that the presented approach offers an effective solution for refining the stability estimate for nonlinear mechanical systems.
[popis_orig] => This paper deals with an approach to study nonlinear chatter analysis, which is based on the synthesis of linear theory for different turning conditions. Mainly, contact nonlinearities play a crucial role in the behavior of the machine tool and the stability of turning operation. However, the analysis of nonlinear systems is challenging because nonlinear system analyzes are often limited to a linearized solution, which may be insufficient to reveal the stability lobe diagram. The presented study proposes a theoretical approach which is based on a synthesis of linearization in the operating point. This approach provides several solutions of stability lobe diagrams which are strongly depending on the loading conditions of the nonlinear system and all solutions are integrated to the final stability lobe diagram. The presented method is applied to a simplified 2D structure between two supports with nonlinear contact stiffness. Resulted analysis of the lobe diagram are compared with results of the time-domine simulations and it shows a good match. This paper shows that the presented approach offers an effective solution for refining the stability estimate for nonlinear mechanical systems.
[klicova_slova] => Chatter; nonlinear system; contact; linearization; machine tool; stability lobe diagram
[klicova_slova_orig] => Chatter; nonlinear system; contact; linearization; machine tool; stability lobe diagram
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[citace_text] => HADRABA, P.; WANG, J.; LIN, H.; HADAŠ, Z. THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS. MM Science Journal, 2022, vol. 2022, no. October, p. 5846-5853. ISSN: 1803-1269.
[citace_html] => HADRABA, P.; WANG, J.; LIN, H.; HADAŠ, Z. THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS. MM Science Journal, 2022, vol. 2022, no. October, p. 5846-5853. ISSN: 1803-1269.
[citace_rtf] =>
[citace_bibtex] => @article{BUT179710,
author="Petr {Hadraba} and JIUNN-JYH {WANG} and Huei-Min {Lin} and Zdeněk {Hadaš}",
title="THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS",
journal="MM Science Journal",
year="2022",
volume="2022",
number="October",
pages="5846--5853",
doi="10.17973/MMSJ.2022\{_}10\{_}2021083",
issn="1803-1269",
url="https://www.mmscience.eu/2021083"
}
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[oecd_tree_oblast_nazev] => 2. Engineering and Technology
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[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
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[oecd_tree_podobor_nazev] => Applied mechanics
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[nazev_en] => THEORETICAL STUDY OF NONLINEAR CHATTER STABILITY ANALYSIS BASED ON SYNTHESIS OF LINEARIZATIONS IN OPERATING POINTS FOR DIFFERENT TURNING CONDITIONS
[popis_en] => This paper deals with an approach to study nonlinear chatter analysis, which is based on the synthesis of linear theory for different turning conditions. Mainly, contact nonlinearities play a crucial role in the behavior of the machine tool and the stability of turning operation. However, the analysis of nonlinear systems is challenging because nonlinear system analyzes are often limited to a linearized solution, which may be insufficient to reveal the stability lobe diagram. The presented study proposes a theoretical approach which is based on a synthesis of linearization in the operating point. This approach provides several solutions of stability lobe diagrams which are strongly depending on the loading conditions of the nonlinear system and all solutions are integrated to the final stability lobe diagram. The presented method is applied to a simplified 2D structure between two supports with nonlinear contact stiffness. Resulted analysis of the lobe diagram are compared with results of the time-domine simulations and it shows a good match. This paper shows that the presented approach offers an effective solution for refining the stability estimate for nonlinear mechanical systems.
[klicova_slova_en] => Chatter; nonlinear system; contact; linearization; machine tool; stability lobe diagram
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