【摘要】 针对航天器热控流体回路泵运转以及工质输运过程引起的微振动问题，文章从系统角度出发，通过试验测试泵驱流体回路系统在不同工况下的微振动特性，对泵驱流体回路的振源、振动传递路径以及末端振动特性等展开研究，对流体回路系统微振动特性有了更深入理解，初步掌握了机械泵振动沿管路、基座和流体的传递特性，对后续流体回路应用于微振动敏感类载荷奠定了基础。更多还原

【Abstract】 In order to address the micro-vibrations problems caused by the operation of pumps in mechanically pumped fluid loops(MPFLs) and the transportation of working fluids, the vibration characteristics of pump-driven fluid loop systems under different operating conditions have been investigated from a systemic perspective in this paper, experimental tests are also conducted to study the vibration sources, transmission paths, and terminal vibration characteristics of MPFLs. The research provides a deeper understanding of the micro-vibration characteristics of MPFLs, preliminary insights into the transmission characteristics of mechanical pump vibrations through pipelines, bases, and fluids. This study results can lay the foundation for the subsequent application of MPFLs in vibration sensitive payloads.更多还原