Application of magneto-rheological (MR) damper in landing gear shimmy
In order to study the semi-active control of landing gear shimmy, expressions of MR damper equivalent damping coefficient with voltage and amplitude was set up firstly. And then, the mathematical model for semi-active control of landing gear shimmy was constructed and maximum energy dissipation approach based on MR was proposed to suppress shimmy. Finally, the critical shimmy velocity varying with the vertical force during taxiing 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 taxiing, and MR not only suppresses shimmy completely but also exhibits good robustness about some system parameters.
magneto-rheological (MR) damper:semi-active:maximum energy dissipation:shimmy:robustness
CHEN Da-wei GU Hong-bin WU Hao
Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China Shanghai Aircraft Design And Research Institute,Shanghai 200232,China
国际会议
哈尔滨
英文
1211-1215
2010-01-08（万方平台首次上网日期，不代表论文的发表时间）