刹车状态下起落架支柱的摆振研究

在研究主起落架支柱在刹车状态下摆振的过程中，我们以双轮支柱式主起落架为例，同时，考虑到了其在纵向振动及扭转振动时自动防滑系统（ABS）的工作情况^1]。本文在做了一些必要的假设条件下，引入了与起落架机轮，缓冲支柱及减摆器相关的变量和参数，并推导出主起落架刹车机轮振动的数学模型，进而研究与缓冲支柱和机轮参数相关的摆振激发主发生摆振的稳定区域边界。

SHIMMY RESEARCH OF LANDING GEAR STRUT IN BRAKE MODE

During the shimmy research procedure of the main landing gear in brake mode, the operation of anti -brake system (ABS) is also considered in the longitudinal vibration and torque vibration if the dual -wheel strut landing gear is taken as an example. The paper introduces the variations and parameters pertaining to landing gear wheel, shimmy strut and damper in the prerequisite of certain assumption. Therefore, the mathematics model of main landing gear brake wheel vibration is reduced, thus providing the study possibility of shimmy excitation condition relative to the wheel parameters and stable area boundary where the shimmy occurs.