整星热试验容器强度及稳定性分析设计

空间环境模拟器真空容器结构设计必须考虑外压载荷和设备载荷,进行详细的结构力学分析计算,使其结构安全可靠.文章采用有限元方法计算分析了容器的强度和稳定性,获得了复杂结构载荷下的应力和临界屈曲压力,在此基础上对容器进行了强度和稳定性评价,所得结果可为容器结构设计提供可靠的依据.

Strength and stability analysis of vacuum vessel for the spacecraft-level vacuum thermal test

The vacuum vessel is the main part of a space environment simulator, to be used for the spacecraft-level vacuum thermal test. In view of safety and reliability, the loads （such as the external pressure and the deadweight） must be accurately calculated when the vacuum vessel is designed. The stability analysis based on the finite element method is carried out in order to acquire the stress and the critical instability pressure. By the estimation and the analysis for the stress intensity and the stability, reliable results can be obtained for the vacuum vessel＇s design and manufacture.