Finite Element Analysis For Semi-Trailer Frame Structure

This paper briefly introduces the basically theory of finite element method which can be used for analysis of vehicles structure, describes the principles and methods of design optimization for vehicles structure parameters, establishes the finite element models of semi-dragging trucks, which applies the ANSYS software to analyze strength, then validity of the calculation result and models is demonstrated by means of non-electric charge surveying experiment. At the same time, the author puts forward the model and methods of optimization design for structure parameters of vehicle frames, exploits the applied software of semi-dragging trucks, does optimization design ,analyzes the feasibility of the optimization results , then gives the structure improve direction .This paper has presented the models of optimization design for vehicle structure and methods of brunch optimization of multi-variables which have some theory significance and applicable value to put forward CAD/CAE technology and optimization design for vehicle and special vehicle.