According to wavelet analysis, the energy regularity of each frequency band is found, the characteristic vectors for values of pumps are constructed, the RBF neural network is trained. Through a lot of practices,both the characteristic vectors and the RBF neural network are proved to raise the diagnosis rate for valves of reciprocating pumps.%根据小波包分析,获得了各频带能量的分布规律,构造了泵阀状态特征向量,训练了RBF神经网络.大量的现场试验证明,构造的故障特征向量与RBF神经网络配合使用的方法可以明显提高泵阀故障诊断的准确率.
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