论文部分内容阅读
针对航天器工程中的典型故障进行分析与建模。首先给出几种典型故障作用模式的具体数学形式,然后分别采用状态描述矩阵对执行机构和传感器故障进行刻画,其不同的取值对应上述不同的故障模式。另外,使用有界范数和凸面体两种形式对系统故障数学建模。通过对航天器工程中的部件故障建模可为故障诊断和容错设计提供必要的数学描述。最后通过实例简单说明如何将所得到的故障模型应用到航天器故障诊断与容错设计中。
Analysis and modeling of typical failures in spacecraft engineering. Firstly, several mathematical forms of typical fault modes are given. Then, the state description matrix is used to characterize the faults of actuators and sensors. The different values correspond to the above failure modes. In addition, mathematical modeling of system failure is performed using both bounded norm and convex body. Modeling the component faults in spacecraft engineering can provide the necessary mathematical description for fault diagnosis and fault-tolerant design. Finally, a simple example of how to apply the resulting fault model to the spacecraft fault diagnosis and fault-tolerant design is given.