Detail produktu
Main landing gear retraction hydraulic actuator demonstrator
ŠPLÍCHAL J. JURAČKA J. AUGUSTÍN P. KAMENÍK L. ČERMÁK Z.
Anglický název
Main landing gear retraction hydraulic actuator demonstrator
Typ
Funkční vzorek
Jazyk
en
Originální abstrakt
The result is a hydraulic cylinder for closing the main landing gear of the L-39NG aircraft. The cylinder stroke is 232±1[mm] and the working pressure is p = 21 [MPa]. The cylinder is mainly made of 30ChGSA steel. Fatigue tests on samples show a possible change of material to 15-5PH H1025. System description:The hydraulic cylinder opens and closes the main landing gear of the L-39NG aircraft. The landing gear cylinder is not under pressure when retracted. When the opening/closing sequence is started, the maximum pressure in the cylinder is 21[MPa]. In the open position, the nose landing gear cylinder is constantly under pressure. In the open position, the main landing gear cylinder is stressed by ground loads; the locking mechanism is part of the cylinder.
Klíčová slova anglicky
Hydraulic cylinder
Datum vzniku
2025-12-17
BIBTEX
@misc{BUT199671,
author="Jaroslav {Juračka} and Jan {Šplíchal} and Petr {Augustin} and {} and {}",
title="Main landing gear retraction hydraulic actuator demonstrator",
year="2025",
note="Functioning sample"
}