广西科技大学学报2026，Vol.37Issue(3)：30-37,8.DOI:10.16375/j.cnki.cn45-1395/t.2026.03.004
基于拓扑优化的电动接驳车骨架轻量化设计
Lightweight design of an electric shuttle bus frame based on topology optimization
摘要
Abstract
With the increasing demand for electric shuttle buses in scenic areas,this bus type has experienced rapid development.To reduce the high production and operating costs of existing electric shuttle buses,the lightweight design of the shuttle bus was carried out.HyperMesh software was used to establish a finite element model of the frame of an electric barge,and the lightweight multi-objective optimization design was carried out.Subsequently,the topology optimization of the chassis frame was carried out by taking the minimum flexibility of the bus frame as the objective function,the relative density of the structural units as the design variable,and the volume fraction of the design area as the constraint.Sensitivity analysis was used to calculate the relative sensitivities of the modal and braking conditions to the maximum stress on the mass,and the components with smaller absolute values of the relative sensitivities were selected,and the frame was optimized in terms of size with the thickness of these components as the design variable.Considering that the barge is mostly used on slopes and has a high power demand when fully loaded,the mechanical performance analysis and free modal analysis of the frame of the electric barge were carried out under three working conditions:constant speed driving,emergency braking and emergency turning under full load.Comparative results before and after optimization indicate that,while satisfying the strength requirements under all operating conditions,the optimized shuttle bus frame achieved a mass reduction of 107 kg,corresponding to a mass reduction rate of 5.1%.关键词
接驳车骨架/轻量化/拓扑优化/相对灵敏度/模态分析Key words
shuttle bus frame/lightweighting/topology optimization/relative sensitivity/modal analysis分类
交通工程引用本文复制引用
张恒翔,严格,邹平,罗祖显,韩梦真,傅爱军..基于拓扑优化的电动接驳车骨架轻量化设计[J].广西科技大学学报,2026,37(3):30-37,8.基金项目
广西科技重大专项(桂科AA22068101) （桂科AA22068101）
柳州市科技计划项目(2022AAA0103)资助 （2022AAA0103）
