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Analytical method of fault detection and isolation based on bond graph for electromechanical actuator

机译:基于键合图的机电执行器故障检测与隔离分析方法

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This paper uses a fault diagnosis methodology based on bond graph to detect and isolate faults in electromechanical actuator (EMA). Firstly, transform the EMA behavioural model into a diagnostic model, and then the analytical redundancy relations (ARRs) for fault detection can be derived from this model. Finally, a fault signature matrix (FSM) for fault isolation is established. Simulation results show the successful detection & isolation of free-run fault in EMA using the proposed method.
机译:本文使用基于键合图的故障诊断方法来检测和隔离机电执行器(EMA)中的故障。首先,将EMA行为模型转换为诊断模型,然后可以从该模型中导出用于故障检测的分析冗余关系(ARR)。最后,建立了用于故障隔离的故障签名矩阵(FSM)。仿真结果表明,所提出的方法可以成功地检测和隔离EMA中的自由运行故障。

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