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

页码：695 / 700

页数：6

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