一种摇臂式起落架的两种建模及结果对比

Two Methods of Modeling an Articulated Landing Gear and Result Contrast

为了满足适坠性能要求,一种摇臂式起落架采用了双腔缓冲器。本文详细推导了拉格朗日方程下该起落架的动力学方程,并编程数值计算了四种状态的着陆性能。同时在Adams/Aircraft平台下建立了该起落架模型,通过编写子程序的方法实现了该双腔缓冲器的功能扩展。Adams/Aircraft平台下的仿真结果与数值计算的结果吻合较好,为起落架性能分析提供了很好的相互验证方法。

To meet the crashworthiness requirement,an articulated landing gear used a dual chamber absorber.This paper deduced the dynamic equation from the Lagrange equation in detail,and calculated the landing performance of four state in numerical method.At the same time,built the landing gear model under the ADAMS/Aircraft plat,and programmed a subroutine to realize the utility of a dual chamber absorber.Under the Adams/Aircraft plat the emulation results accord well with the numerical results,and so provided a go...