基于ADAMS/Aircraft的摇臂式起落架落震动力学仿真分析

Dynamic Drop Simulation and Analysis of the Articulated Landing Gear Based on ADAMS/Aircraft

本文以某型摇臂式起落架为研究对象,建立起落架缓冲系统力学模型,并进行受力分析,利用ADAMS/Aircraft模块对起落架缓冲支柱力和轮胎力进行建模,构建起落架落震动力学仿真模型,分别在带和不带前飞速度情况下,仿真分析比较不同下沉速度时起落架的落震性能。仿真结果表明,此型起落架具有较好的缓冲性能,利用ADAMS/Aircraft可有效完成摇臂式起落架的落震动力学仿真分析。

The paper takes the articulated landing gear as subjects to investigate. By establishing a mechanical model of the landing gear shock absorbing system, the paper carries on a force analysis. The dynamic simulation model for landing gear drop test is set up based on ADAMS/Aircraft,and the axial force of the shock absorber and the tires force are established. The main landing gear drop simulation is analyzed respectively in different descent speeds with and without advance speed. The simulation results indicate that cushioning capacity of the landing gear is excellent and it＇s feasible to make the dynamic drop simulation of the main landing gear by ADAMS/Aircraft.