Research on Equivalent Contact Stiffness of Hydraulic Device in Compression Station Lifting System
In the chute lifting system of the compression station equipment,in order to make up for the shortcomings of the original chain drive method,the traditional chain drive method is improved to a hydraulic drive method.In order to further optimize the performance of the hydraulic system,the equivalent stiffness characteristics of the hydraulic cylinder between the piston and cylinder barrel and the hydraulic oil are further modeled and analyzed.According to the hydraulic cylinder equivalent stiffness model,the movement process of the hydraulic cylinder including a variety of stiffness,hydraulic oil fluctuations in the hydraulic cylinder,hydraulic cylinder and piston interaction can be reflected through the equivalent stiffness of its change law.On the basis of establishing the contact stiffness model of different objects,the influence of different parameters on the equivalent stiffness of the hydraulic cylinder is further analyzed,which lays the foundation for the subsequent selection and structural optimization of the hydraulic cylinder.
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