静动态工况下的自卸车车厢轻量化设计
The Lightweight Deign of Dump Truck Carriage Based on the Static and Dynamic Working Conditions

由于自卸车的车厢自重大,因此降低其重量以提高燃油经济性,成为自卸车企业急需解决的问题。通过对自卸车车厢进行有限元建模,评价其静态和动态工况下的刚度和强度性能。在不改变原车厢结构的前提下,以车厢部件的材料和板厚作为设计变量,运用有限元分析及近似模型技术,进行静态工况以及动态冲击工况的优化设计。在满足设计性能要求的同时,实现减重23.72%。
The dump truck carriage has a heavy self-weight, and then to improve energy efficiency by reducing itself weight is become an urgent problem for dump truck company. The stiffness and strength performance of static and dynamic working conditions are evaluated by constructing the finite element model for a dump truck carriage. The material and the thickness of parts as design variables are defined, and the optimization design of static and dynamic impact working conditions are conducted by the surrogate-model technique and finite element method without changing the structures of carriage. The result shows that the weight reduces by 23.72% while meets the design requirement