ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Retraction load equivalent research of a certain airplane nose gear
Received date: 2015-08-06
Revised date: 2015-10-12
Online published: 2015-11-16
Supported by
Provincial/Ministerial Project Level
Most airplane landing gear retracts during airplane's flight. The landing gear is mainly subjected to aerodynamic load, flight overload and inertial load that change with flight speed and landing gear rotation angle. How to apply load on the ground to simulate the real situation that happens in the air becomes a key technology in the reliability test. This paper calculates a certain airplane's nose gear retraction actuating cylinder load in the retracting process and proposes an equivalent method. The dynamic simulation result agrees well with measurement statistical curve. This equivalent method applying to the landing gear retraction mechanism reliability test is simple and effective.
Key words： landing gear; retraction mechanism; reliability test; retraction load; equivalent
SHEN Wenjing , PENG Zhijun , LI Bin , YE Bin . Retraction load equivalent research of a certain airplane nose gear[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016 , 37(7) : 2218 -2224 . DOI: 10.7527/S1000-6893.2015.0272
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