基于均值偏移算法的供水泵站液控止回蝶阀关闭振动控制OA

In order to reduce the closing vibration amplitude of the hydraulic control check butterfly valve,a control method for the closing vibration of the hydraulic control check butterfly valve in the water supply pumping station based on the mean shift algorithm is proposed.This paper analyzes the working status of the hydraulic control check butterfly valve and conducts wet modal analysis to determine the quality and stiffness matrix of the valve.Based on the quality and stiffness matrix of the valve combined with the mean shift algorithm,the operating parameters of the hydraulic control check butterfly valve are tracked to identify the vibration when the valve is closed.If vibration occurs,a fuzzy controller is used to input the deviation and deviation rate between the actual and ideal operating parameters of the hydraulic control check butterfly valve.Through fuzzy reasoning and deblurring,the precise control value of the hydraulic control check butterfly valve is obtained,the vibration control of the hydraulic control check butterfly valve is completed.The experimental results show that when the hydraulic control check but-terfly valve is closed,the flow rate will significantly increase with the decrease of opening degree.The mean shift algorithm can effectively monitor the operating parameters of the hydraulic control check butterfly valve and identify the vibration in the valve.The proposed method can reduce the closing vibration amplitude of the hydraulic check butterfly valve within 3 mm.