Finite Element Analysis and Optimal Design for the Frame of SX360 Dump Trucks

As bearing foundations of autos, the frame bears various forces and torques transmitted from engine, clutch, body, and cargo container. Analysis of natural vibration frequency and dynamic mode of the frame is an important process to ensure operating capabilities of autos. It is hard to yield accurate analysis results with traditional methods. However, the FEA software ABAQUS can provide accurate frame stress distributions, frame deflection laws at its two ends and the middle point, and transient frame dynamics. Most of previous finite element analysis only focused on frame mass and model optimization analysis, lacking of vibration and mode analysis. In this paper the large-scale software ABAQUS was used to analyze the natural vibration frequency and dynamic mode of the frame of SX360 dump trucks, providing necessary theoretic basis for optimal design of the frame.