大型空间展开机构微重力环境模拟悬吊装置热结构耦合分析

以大型空间展开机构高低温展开试验系统微重力环境模拟悬吊装置为对象,采用Solidworks软件建立悬吊装置有限元分析模型,并利用ANSYS软件针对不同展开机构产品悬吊载荷及不同工作温度状态进行热-结构耦合分析.通过数值分析得出不同工况下悬吊装置的热变形及应力情况,并分析了其对展开机构展开长滑轨倾斜角的影响.研究内容对应用于高低温环境下的微重力环境模拟悬吊装置优化设计提供参考,并对空间展开机构高低温微重力展开试验的有效实施和参数调试具有指导意义.

Thermal Structure Coupling Analysis of Microgravity Environment Simulation Suspension Structure for Large Space Deployable Mechanisms

This article focuses on a microgravity environment simulation suspension device which used for reliability demonstration testing of large scale space deployable mechanisms. The finite element model of the device is established by Solidworks and the thermal structure coupling analysis of the suspension device is performed with ANSYS software in the situations of different suspension loadings and temperatures. The thermal deformation and equivalent stress distributions in different conditions of the suspension device are carried out by numerical analysis. The impact of the thermal structure coupling effect on the tilt angle of long slide rails is discussed. The results provide a reference for optimization design of the microgravity environment simulation suspension device under thermal environment. Besides, the research is also important to guide the actual operation of microgravity and thermal deployment testing and the experimental parameters debugging.