非线性自适应起落架振动性能研究

飞机起落架系统是一个非线性振动系统 ,通过建立起落架的非线性振动模型和控制方程 ,用数值模拟方法对主动控制起落架和被动起落架的动态特性进行了比较。结果表明 ,采用主动控制技术可大大降低起落架的冲击载荷和振动载荷 ,提高飞机的滑行性能

STUDY ON VIBRATION PERFORMANCE OF NON-LINEAR SELF-ADAPTED LANDING GEAR

The absorber system of landing gear is a non_linear vibration system.By establishing non_linear vibration model and control equation of landing gear,the dynamic performances of active control system and passive system of landing gear are compared with the method of numerical simulation.It is shown that the impact loads and vibration loads can be greatly reduced by adopting optimal control techniques,and the taxiing performance of airplane can be greatly improved.