无人机着陆气囊落震试验及缓冲特性研究

Simulation Research on the Cushion Performance and Drop Test of UAV Landing Airbag

对无人机着陆气囊缓冲系统进行简化,建立着陆气囊缓冲系统的有限元模型,然后对气囊参数进行修正。在此基础上,进一步研究了无人机着陆气囊在复杂工况下的着陆缓冲过程。研究结果表明,复杂工况对气囊缓冲特性影响较大。本仿真方法对着陆气囊缓冲过程模拟准确,且气囊参数对缓冲特性的影响具有一定规律。

The finite element model of the landing airbag cushion system was established by simplifying the UAV landing airbag cushion system,and then the parameters of the airbag were modified by the airbag drop test data.On this basis,the landing process of UAV landing airbag under complicated working conditions was simulated.Numerical results show that the simulation method can effectively simulate the landing airbag cushion process,and the influence of the airbag parameters on the cushion performance has a certain regularity,and the complicated conditions have great influence on the cushion performance of airbag.