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FAULT DIAGNOSIS FOR A THREE MASS TORSION OSCILLATOR USING A BANK OF FAULT MODELS

机译:三个批量扭转振荡器使用故障模型的故障诊断

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A fault diagnosis method for a three mass torsion oscillator is considered which is subject to different additive faults. By using a bank of fault models three faults of different type are detected, isolated and identified in size and time of occurrence. The bank of fault models is formed by a model of each considered fault. Comparison of simulated fault model outputs and measured signals leads to fault isolation. Fault size and time of occurrence are identified by a parity equation approach and used as fault model parameters. The method is capable to perform the tasks with use of one actuator and one sensor signal. It is shown that common approaches for fault isolation can not be used due to the small number of measured signals.
机译:考虑了三种质量扭转振荡器的故障诊断方法,其受到不同的添加剂故障。通过使用一组故障模型,检测到不同类型的三个故障,分离并在发生的尺寸和时间内识别。故障模型银行由每个考虑的故障的模型形成。模拟故障模型输出和测量信号的比较导致故障隔离。故障大小和发生时间由奇偶校验方程方法识别并用作故障模型参数。该方法能够使用一个致动器和一个传感器信号执行任务。结果表明,由于少量测量信号,不能使用常见的故障隔离方法。

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