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本文介绍了旋转机械碰摩故障的ＢＰ神经网络诊断方法，并利用一种新的转子碰摩故障模拟试验系统，验证了方法的可行性。本方法既能诊断碰摩故障的发生，又能判定碰摩程度。
This paper introduces a BP neural network diagnosis method of rubbing fault of rotating machinery, and uses a new simulation system of rotor rubbing fault simulation to verify the feasibility of the method. The method can not only diagnose the occurrence of rubbing fault, but also determine the rubbing degree.