In order to improve the friction performance of the valve plate and improve\nthe oil film bearing capacity of the valve plate, the influence of the fluid-solid\ncoupling on the performance of the oil film of the valve plate was studied.\nThe lubrication characteristics of the surface texture of the valve plate were\nstudied systematically based on the theory, simulation and coupling effects.\nIn this paper, the geometrical model of hydraulic drive valve plate is established,\nand the thickness and pressure equation of hydraulic film are deduced\ntheoretically. The Reynolds equation is solved by the finite difference methods.\nThe film thickness and pressure distribution under fluid-solid coupling\nof the port plate pair are obtained, and the correctness of the theory and programming\nis analyzed.
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