Finite Element Analysis and Structural Performance Research on Chassis Frame of Crawler Bamboo Transport Vehicle

Abstract

Because most of the bamboo forests in China are distributed in hilly areas, the terrain conditions are complex, and the transfer of bamboo skidding is difficult. In view of the above problems, a forest multi-functional power platform was developed. In order to ensure the safety of the whole chassis frame structure design of the power platform and understand the vibration characteristics of the whole chassis frame, the chassis frame of the tracked transport vehicle is taken as the research object. Firstly, the three-dimensional model of the chassis frame is established in SolidWorks software. Based on HyperMesh, the finite element model of the frame is established. Combined with two typical working conditions of full load and half load, the static and modal analysis is carried out by OptiStruct. The stress and deformation distribution of the frame under different working conditions are obtained. The results show that the maximum stresses of the frame under full load and half load conditions are 172.6 MPa and 206.1 MPa, respectively, which are less than the yield limit of the material, and the maximum deformation meets the allowable requirements. The modal analysis results show that the natural frequency of the frame does not coincide with the excitation frequency of the road surface and the engine, and there is no resonance risk. The results show that the frame structure meets the requirements of strength and stiffness.