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Fault diagnosis method research of the automobile power train impacting durability test-bed based on data and model method

机译：基于数据和模型方法的汽车动力总成冲击耐久性试验台故障诊断方法研究

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The safety and reliability of the automobile power train impacting durability test-bed are key technical indexes of the test-bed. Fault diagnosis frequently, accurately and timely is one of the important ways of increasing the safety and reliability of the test-bed. To ensure the reliability service of the test-bed and the testing personnel security, this paper deeply analysed the mechanical failure mechanism of the test-bed, and pointed at the fault characteristics of the test-bed, we diagnosed the fault of the test-bed based on data and model method. In the data based method, Wavelet theory was used to diagnose the fault of the test-bed rotor. To make up the lack of the data based method, the Kalman filter was used to diagnose and simulate the drop of inertia disc based on the model. The results showed that it could meet the demand of diagnosis of mechanical fault of the test-bed based on the data and model method as well as improve the safety and reliability of the test-bed, moreover provide a foothold for diagnosing the complete machine fault of the test-bed.
机译：汽车动力总成冲击耐久性试验台的安全性和可靠性是试验台的关键技术指标。频繁，准确，及时地进行故障诊断是提高试验台安全性和可靠性的重要途径之一。为了保证测试台的可靠性服务和测试人员的安全，本文深入分析了测试台的机械故障机理，针对测试台的故障特征，对测试台的故障进行了诊断。基于数据和模型方法的床。在基于数据的方法中，小波理论被用于诊断试验台转子的故障。为了弥补基于数据的方法的不足，基于该模型，使用卡尔曼滤波器对惯性盘的跌落进行诊断和仿真。结果表明，基于数据和模型方法，可以满足对试验台机械故障的诊断需求，提高了试验台的安全性和可靠性，为整机故障的诊断提供了立足点。测试台的。

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