Finite Element Analysis(FEA) for Cylinder Block Structure of Diesel Engine

Based on ANSYS software,this paper built up a precise cylinder block contact model for diesel engine.The displacement and load boundary conditions were determined by calculation and experience,and the strength and stiffness of(cylinder) block were analyzed under each cylinder peak pressure.The maximum deformation and the maximum stress of(cylinder) block are pointed out under peak pressure condition,and the deformation and stress distributions of cylinder block,cylinder(liner),tappet hole,bearing shell were analyzed.Furthermore,the sealing performance of the top and bottom surface of cylinder block was investigated,and some proposals concerning the structural improvements for the cylinder block were put forward.