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Optimization design method of the oil tank of hydraulic system

WANG De-sheng1,ZHOU Ai-ping2(1.School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China;2.School of Resources and Environment Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China)  
To make the tank structure of hydraulic system more reasonable,the calculation formulas of tank bottom deformation and cover's natural frequency are set up by using the elasticity theory in this paper.With the tank length,width,height,floor thickness and cover's thickness as variables,the smallest material physical volume of the tank as the objective function,the deformation of the tank bottom,cover's the natural frequency,the effective volume and cooling conditions as the main constraint,the optimization mathematical model is established.The oil tank of hydraulic system of controlled change speed devices has been optimized using improved meshing algorithm.The results show that the material volume of the tank is 19.7% less than the original design under conditions of the same effective volume.It provides a reference for the optimal design of the hydraulic system oil tank.
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