Aiming at the problem of hydraulic cylinder vibration in the loading process of structural strength test,an intelligent detection and positioning method for hydraulic cylinder vibration is proposed.An expert knowledge database of abnormal sound signals is established by capturing the vibration signals of common hydraulic cylinders.At the same time,an array of sound detection sensors is arranged on the test site to obtain the vibration signals of hydraulic cylinder.The source of abnormal sound is determined by matching with the expert knowledge database,and the possible causes are analyzed.The spatial distribution coordinates of the hydraulic cylinder are introduced to quickly locate the hydraulic cylinder that may vibrate,and the position and cause of the hydraulic cylinder vibration are quickly detected and judged,which plays a role in assisting the implementation of the test and reducing the risk of the test.
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