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考虑轮轴点载荷测量的起落架落震试验

LIU Wenbin ZHOU Zhengwang YOU Ying CHEN Yi WANG Youshan

航空学报2025，Vol.46Issue(24)：80-90,11.
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航空学报2025，Vol.46Issue(24)：80-90,11.DOI:10.7527/S1000-6893.2025.31861

考虑轮轴点载荷测量的起落架落震试验

Landing gear drop test considering wheel axle load measurement

LIU Wenbin 1ZHOU Zhengwang 2YOU Ying 3CHEN Yi 4WANG Youshan5

作者信息

  • 1. Shanghai Aircraft Design&Research Institute,Shanghai 201210,China||School of Astronautics,Harbin Institute of Technology,Harbin 150001,China
  • 2. AVIC Aircraft Landing Gear Co.,Ltd.,Changsha 410200,China
  • 3. Shanghai Aircraft Design&Research Institute,Shanghai 201210,China
  • 4. AVIC Aircraft Strength Research Institute,Xi'an 710065,China
  • 5. School of Astronautics,Harbin Institute of Technology,Harbin 150001,China
  • 折叠

摘要

Abstract

The landing gear drop test is a crucial dynamic test for the landing gear.However,current research gener-ally focuses only on the load at the tire ground contact point,with very little attention paid to the load at the wheel axle point.The difference between the two has not been studied in detail.As the load directly transmitted upward to the air-craft body,the load at the wheel axle point is of greater value for the verification of the landing gear landing load on the design of the aircraft body load.Therefore,it is necessary to carry out research on the drop test considering the mea-surement of the wheel axle load.To address this,based on the development requirements of the oleo-pneumatic dual-wheel landing gear of a certain large civil aircraft,the following work was carried out.First,the characteristics of the landing loads are studied in combination with the principle of the drop test,and a method of using three-axis force sen-sors arranged at the hinge points to equivalently measure the load at the wheel axle point is proposed.Second,pre-liminary tests of vertical and horizontal loading are performed to preliminarily verify the measurement effect of the load at the wheel axle center.Finally,formal drop tests under different rotational speed conditions are conducted,and from the perspective of the load difference between the wheel axle point and the ground contact point,the specific dynamic load data and other dynamic characteristics are analyzed in detail.The results provide a reference for the subsequent improvement of the landing gear system design and test technology.

关键词

起落架/落震试验/着陆载荷/轮胎/动力学

Key words

landing gear/drop test/landing loads/tire/dynamic

分类

航空航天

引用本文复制引用

LIU Wenbin,ZHOU Zhengwang,YOU Ying,CHEN Yi,WANG Youshan..考虑轮轴点载荷测量的起落架落震试验[J].航空学报,2025,46(24):80-90,11.

基金项目

中国商飞公司科技创新专项(Y24GS29) COMAC Technological Innovation Special Project(Y24GS29) （Y24GS29）

航空学报

OA北大核心

1000-6893

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