关键词: 自卸车；U 型车厢；有限元分析；高强钢

Abstract: Dump truck is the most basic special vehicle product for heavy commercial vehicles. In the development of dump truck industry in recent years in China, with the national attention to the environment, the problem of heavy weight of rectangular box structure in production and use has become increasingly prominent, and the box structure has begun to change from rectangular box to U-type box gradually. The model is modeled by three-dimensional software SolidWorks and analyzed by efficient finite element software. The stress of the container under different road conditions and loading conditions is simulated, and the container is optimized from the aspects of steel plate material and container structure according to the analysis results.

Key words: Dump truck; U- type box; FEA; High-strength steel