Improved Model of Landing-Gear Drop Dynamics

被引：18
|
作者：
Wei, Xiaohui [1 ]
Liu, Chenglong [2 ]
Liu, Xiangyao [2 ]
Nie, Hong [1 ]
Shao, Yizhou [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Key Lab Fundamental Sci Natl Def Adv Design Techn, Nanjing 210016, Peoples R China
来源：
JOURNAL OF AIRCRAFT | 2014年 / 51卷 / 02期
基金：
中国国家自然科学基金;
关键词：
AIRCRAFT;
D O I：
10.2514/1.C032551
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A study was conducted to demonstrate improved model of landing-gear drop dynamics. The improved model of the half-axle landing-gear drop dynamics was constructed to investigate the characteristics of shock-strut binding during landing process. The structural configuration of the main landing gear of the unmanned aircraft was a kind of half-axle shock strut. This kind of structural configuration added more bending moment on shock strut than the landing gear with symmetric layout of wheels due to ground vertical force. Shock-strut forces and tire forces were modeled according to Nie's research, while the shock-strut friction force was modeled following another methodology. The widely adopted conventional model divided the whole drop process into two phases, such as before shock-strut deflection phase and shock-strut telescope phase.
引用
收藏
页码：695 / 700
页数：6
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