卫星总装工艺FMEA应用初步研究

为了进一步提高航天器装配的可靠性，适应航天快速发展的总装要求，文章根据卫星总装的具体特点，提出了一种针对卫星总装工艺的故障模式影响分析方法。这种基于卫星总装工艺的FMEA主要是将故障严酷度、故障发生度、可检测度、风险优序数、产品危害度等5个参数进行量化处理，从卫星分系统、结构舱段、专业测试、关键过程控制等方面展开具体分析，采用表格评估形式对总装过程中潜在失效模式进行量化处理，最终得到相应评估对象的可靠性指标，提出相应的故障预防措施，以达到提高总装工艺可靠性的目的。

The application of FMEA in the satellite assembly and integration process

In order to improve the reliability of the spacecraft assembly and to meet the demands of fast development, this paper, based on the features of satellite assembly process, proposes a new application of FMEA by use of five parameters, i.e., severity, occurrence, detectability, risk priority number, and criticality, to evaluate in a table form the potential failure modes regarding satellite subsystems, satellite cabins, technical tests, and the key control processes. With the reliability index of the evaluated objects at hand, preventive measures can be taken against the respective failure modes.