基于AR参数的液压阀故障信号检测

Hydraulic valve fault signal detection based on AR parameter

本文提出了一种使用最小支持向量机检测溢流阀故障信号的方法。通过提取溢流阀振动时的正常信号和故障信号,在此基础上进行了AR建模,并由建立的模型获取了信号的AR参数,之后利用这些参数作为最小支持向量机的输入进行故障辨识,取得了令人满意的结果。

The paper presents the method to adopt least squares support vector machine to detect the overflow valve fault signal,and shows AR modeling by taking normal signal and fault signal during overflow valve vibration and obtains AR parameter of the collected signal based on the model and then adopts these parameters as input for least squares support vector machine to implement fault identification and achieves satisfactory result.