【摘要】 为实现复杂系统安全性可靠性分析与设计过程融合、提高安全性可靠性分析效率，在基于模型的系统工程（MBSE）分析框架下，对基于SysML扩展机制的故障模式及影响分析（FMEA）的自动化实现方法进行研究。以载人飞船推进系统为研究对象，利用SysML语言建立了推进系统正常工作状态下的系统模型和故障模式模型，提出了基于系统模型识别故障传递路径的方法，并利用SysML对故障传递关系进行描述。通过对故障传递关系的追溯，实现推进系统FMEA条目模型的自动化生成。分析结果表明：该方法能够有效地将故障分析融入系统设计过程中，并实现FMEA的高效、便捷、全面分析。更多还原

【Abstract】 To integrate safety and reliability analysis with the design process of complex systems and to enhance the efficiency of Failure Mode and Effects Analysis(FMEA), an automated implementation method based on the SysML extension mechanism was developed within a Model-based Systems Engineering(MBSE) framework. Focusing on the propulsion system of a manned spacecraft, this study established both a system model under normal working conditions and a fault mode model of the propulsion system using SysML. A method for identifying faulty transmission paths based on the system model was proposed, and faulty transmission relationships were modelled using SysML. FMEA item models for the propulsion system were automatically generated by tracing the fault transmission paths. The results demonstrate that this method can effectively integrate fault analysis into the system design process, thereby providing a convenient and efficient analysis procedure.更多还原