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可靠性指系统在各种可能条件下正常运行的能力,系统可靠性是系统工程研究的重要内容．卫星及其运行环境的特殊性导致其运行可靠性研究难以应用可靠性工程通常使用的概率和统计学方法．通过研究应用故障模式规避(FMA)方法提高卫星运行可靠性,识别了单边和双边故障模式,定义了故障模式及其规避过程的数学表述,提出了用于故障模式规避的扩充非关联控制因素约束边际区间、自主选择故障模式状态空间、故障模式状态空间预测、故障模式隔离和关联控制因素与故障模式策略,给出了相应的案例．
Reliability refers to the ability of the system to operate normally under various possible conditions. System reliability is an important part of system engineering research. The particularity of satellites and their operating environments lead to their operational reliability studies. It is difficult to apply the probabilistic and statistical methods commonly used in reliability engineering. By studying the application of fault mode avoidance (FMA) method to improve the reliability of satellite operation, unilateral and bilateral failure modes are identified, mathematical models of fault modes and their avoidance processes are defined, and extended non-associated control factors for fault mode avoidance Constraint marginal interval, self-selected fault mode state space, fault mode state space prediction, fault mode isolation and associated control factors and fault mode strategy are given.