多轮起落架的数字化建模及其动态性能仿真

Digital Modeling And Dynamic Performance Simulation of Landing gear with Multi-wheels

在笛卡尔坐标系中建立了飞机起落架着陆过程的等效数学模型;基于ADAMS/Aircraft模块建立了多轮式起落架的着陆动态性能分析模型并完成全机数字样机的装配。对仿真结果进行研究分析,得出结论:多轮式起落架能够有效地分散地面载荷,大大地减小起落架单个机轮承受的压力,增大飞机的漂浮性,提高飞机起飞着陆的安全性,并在一定程度上延长起落架及跑道的使用寿命。该研究内容及方法为今后的大飞机起落架设计提供有益的参考。

It established an equivalent mathematical model of Landing gear in Descartes Coordinate System .The digital prototypes of the Landing gear and full-aircraft with multi-wheels were established based on MSC ADAMS/Aircraft software. Via research and analysis of the simulation results, it draws conclusions that Landing gear with muhi-wheels can scatter ground load and decrease burden on single wheel efficiently. As a result, the floatation and security of aircraft will be improved greatly. Also the life of Landing gear and the runway will be prolonged. The beneficial references are provided for the design of large aircraft in the future.