航天器热控电加热回路温度继电器串并联混合冗余结构的设计与分析OA
Design and analysis of series-parallel hybrid redundancy configurations for temperature relays in spacecraft electric heating circuits
针对航天器热控电加热回路温度继电器混合冗余结构在故障倾向方面缺乏系统性对比、选型依据缺乏量化支撑的问题,对两种串并联冗余结构开展了系统的可靠性分析与故障模式对比研究.研究揭示:两种冗余结构的可靠度均≥0.999 990,但其容错倾向存在显著差异——"组内串联、组间并联"结构能够有效抑制由粘连失效引发的误导通故障(17 种),但对误断开故障敏感性较高(25 种);而"组内并联、组间串联"结构则对开路失效引发的误断开故障具有较强容错能力(17 种),但对误导通故障抑制效果较弱(25 种).该差异源于两种冗余结构在逻辑特性与故障传播路径上的不同.基于失效概率、系统安全导向及资源约束条件,提出了针对性的工程选用建议,可为航天器热控电加热回路冗余设计提供理论依据与决策参考.
To address the lack of systematic comparison and quantitative selection criteria regarding the failure behavior of hybrid redundancy configurations for temperature relays in spacecraft thermal control electric heating circuits,this study performs a reliability analysis and failure mode comparison of two series-parallel redundant configurations.Both architectures achieve extremely high reliability(≥0.999 990)but exhibit distinct fault-tolerance characteristics.The intra-group series and inter-group parallel configuration effectively suppresses unintended energization(false ON)caused by contact sticking(17 cases),yet is more susceptible to unintended open-circuit(false OFF)(25 cases).Conversely,the intra-group parallel and inter-group series configuration exhibits strong tolerance to unintended shutdown due to open-circuit failures(17 cases),but provides weaker suppression of unintended energization(25 cases).These differences arise from the distinct logic and failure propagation paths of the two configurations.Based on failure probabilities,system safety priorities,and resource constraints,targeted engineering recommendations are proposed,providing theoretical support and decision-making references for redundancy design in spacecraft thermal control electric heating circuits.
化延堂;刘春龙;胡日查;张敏
中国科学院 长春光学精密机械与物理研究所,长春 130033||中国科学院大学,北京 100049||中国科学院空间光学系统在轨制造与集成重点实验室,长春 130033中国科学院 长春光学精密机械与物理研究所,长春 130033||中国科学院空间光学系统在轨制造与集成重点实验室,长春 130033中国科学院 长春光学精密机械与物理研究所,长春 130033||中国科学院空间光学系统在轨制造与集成重点实验室,长春 130033中国科学院 长春光学精密机械与物理研究所,长春 130033||中国科学院空间光学系统在轨制造与集成重点实验室,长春 130033
航空航天
航天器电加热回路混合冗余结构可靠度计算故障模式分析
spacecraft electric heating circuitshybrid redundancy configurationsreliability calculationfailure mode analysis
《航天器环境工程》 2026 (2)
141-147,7
吉林省科技发展计划项目"基于光瞳旋转的稀疏孔径成像系统像质提升方法研究"(编号:20260101039JJ)
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