关键词: 自卸车车架；有限元分析；轻量化

Abstract: The lightweight of dump truck frames has always been one of the design goals of vehicle manufacturers. Lightweight frames can not only save materials and costs, but also reduce fuel consumption and improve economy. This article takes a certain type of dump truck as the research object, and uses ANSYS software to perform static analysis on the frame under three working conditions, mainly verifying and calculating the strength and stiffness changes of the frame under each working condition. Based on static data analysis, optimize the lightweight design of the frame, select the optimal solution, and conduct static and modal analysis again to verify whether the optimized frame meets the usage requirements, thus completing the lightweight design of the frame.

Key words: Dump truck frame; Finite element analysis; Lightweight