Finite Element Analysis And Optimum Design Of A Truck Frame

With the development of national economy and traffic system, automotive industry has been developed at very fast speed. As a part of the truck, the frame supports all kinds of complicated loads coming from the road and freight. And many assembly of the truck are built in the frame. So the intensity and the strong of the frame play a very important role in the design of trucks.A model of the frame is established by using CAD in this paper. The static intensity of the frame is analyzed in the situation of bending, torsion, braking and swerve by ANSYS. The result indicates that the stress of the frame is less than the utmost intension. And the frame is satisfied with the design. The model analysis of the frame is studied. The mode vibration model and proper frequency of the frame are calculated by mode analysis. The local intension is considered by the frequency and the model. Finally, a parametric model of the frame is established. The section size of the frame is optimized by ANSYS. The result indicates that the weight of the frame is decreased and the material of the frame is saved.Herein the research of FEA and ANSYS software offered a set of basic theory and method for the frame structure and simulation of dynamic characteristic. It not only laid the foundation for the problem of truck vibration, fatigue and noise, but also provided the guiding significance for the working of manufacturers.