부산대학교 도서관

With the development of the economy, the demand for heavy-duty transportation vehicles is increasing. Due to the limitations of national standards and regulations, and the market’s requirements for the reliability and economy of the whole vehicle, it is urgent to optimize the structure of each part of the heavy-duty transportation vehicle. In this paper, the sub-frame of a certain type of cement mixer truck is taken as an example. Firstly, the finite element analysis method is used to find the structural defects of the existing products through static analysis and modal analysis of the existing products under full-load condition. Then, the density method is used to carry out topology optimization design of the existing sub-frame structure, and the optimized frame is checked. The conclusion is expected to provide a theoretical basis for the lightweight design of heavy transport vehicles.