基于磁流变阻尼器的起落架摆振半主动控制

中国机械工程 ›› 2010, Vol. 21 ›› Issue (12): 1401-1405.

基于磁流变阻尼器的起落架摆振半主动控制

陈大伟;顾宏斌;吴东苏

南京航空航天大学,南京,210016

出版日期:2010-06-25 发布日期:2010-07-01
基金资助:
航空科学基金资助项目(98B52023，04B52012)
Aviation Science Foundation of China（No. 98B52023，04B52012）

Semi-active Control of Landing Gear Shimmy Based on Magneto-rheological (MR) Damper

Chen Dawei;Gu Hongbin;Wu Dongsu

Nanjing University of Aeronautics and Astronautics,Nanjing,210016

Online:2010-06-25 Published:2010-07-01
Supported by:
Aviation Science Foundation of China（No. 98B52023，04B52012）

摘要/Abstract

摘要：

根据能量法建立了磁流变阻尼器等效线性阻尼系数与电压和振幅的函数表达式;建立了起落架摆振半主动控制的数学模型,采用最大能量耗散的控制策略实现了基于磁流变阻尼器的减摆;讨论了不同稳定距下,飞机滑跑时发生摆振的临界速度随垂直载荷的变化。仿真结果表明,在飞机滑跑速度范围内,磁流变阻尼器减摆性能明显优于油液式减摆器的减摆性能,能够完全抑制摆振,并且对某些系统参数的变化具有鲁棒性。

关键词:

磁流变阻尼器, 半主动, 最大能量耗散, 摆振, 鲁棒性

Abstract:

In order to study the semi-active control of landing gear shimmy based on MR damper, firstly function expression of the MR damper equivalent damping coefficient with voltage and amplitude was set up. Secondly, the mathematical model for semi-active control of landing gear shimmy was constructed and maximum energy dissipation approach was proposed to suppress shimmy based on MR. Finally, the critical velocity of shimmy varying with the vertical force during taxing was investigated in different caster lengths.The simulation results show that the performance of MR to suppress shimmy is greatly superior to hydraulic shimmy damper during taxing. And MR suppresses shimmy completely and exhibits good robustness about some system parameters.

Key words:

magneto-rheological(MR) damper, semi-active, maximum energy dissipation, shimmy, robustness

中图分类号:

V226
O323

陈大伟, 顾宏斌, 吴东苏.

基于磁流变阻尼器的起落架摆振半主动控制

[J]. 中国机械工程, 2010, 21(12): 1401-1405.

CHEN Da-Wei, GU Hong-Bin, TUN Dong-Su.

Semi-active Control of Landing Gear Shimmy Based on Magneto-rheological (MR) Damper

[J]. China Mechanical Engineering, 2010, 21(12): 1401-1405.

参考文献

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