从理论分析和仿真计算两个角度,研究对比了典型空间管路结构在单、多轴随机振动载荷下的动强度特性,得到了管路结构随机振动疲劳损伤与激振方式、方向和动应力响应之间的关系,提供了一种可定量预估管路结构在单、多轴激励随机振动试验中强度考核差别的方法,为管路结构动强度考核试验设计提供理论指导,并为其考核结果提供保障。 From the theoretical analysis and the simulation calculation, the dynamic strength characteristics of the typical space pipeline structure subjected to single and multi-axis random vibration loads are studied and compared. The random vibration fatigue damage and vibration mode, direction and dynamic stress of the pipeline structure are obtained. Response to the relationship between the provision of a quantitative prediction of pipeline structure in single and multi-axis random vibration test strength test differences in the method for the test of dynamic strength of pipeline structure design to provide theoretical guidance and assessment The results provide protection.