农业装备与车辆工程2026，Vol.64Issue(8)：26-30,43,6.DOI:10.3969/j.issn.1673-3142.2026.08.004
半挂车空气悬架导向臂轻量化研究
Research on lightweighting of the guide arm of semi-trailer air suspension
摘要
Abstract
To address the problem of an insufficient safety factor of a certain 12 t semi-trailer air suspension guide arm under extreme vertical impact conditions,a high-strength alloy spring steel,52GrMoV4,was selected to replace the original material,and the initial safety factor was raised to 1.95.Based on the SIMP variable density method,topology optimization was performed,and the neutral layer of the web was identified as a material redundant region.Accordingly,waist-shaped lightweight holes were designed,and the model was reconstructed.The strength check results showed that the maximum stress of the optimized guide arm under extreme conditions was measured to be 1 139.4 MPa,which was lower than the material yield limit of 1 175 MPa,and the safety factor was calculated to be 1.40;thus,the design requirements were satisfied.Compared with the original model,the mass per part was reduced from 32.9 kg to 31.4 kg,achieving a weight reduction ratio of 4.56%,and the static stiffness loss was only 9.8%,which was considered to be within a controllable range.Therefore,a reference for the lightweight design of composite air suspension guide arms was provided.关键词
空气悬架导向臂/有限元分析/轻量化/拓扑优化/变密度法Key words
air suspension guide arm/finite element analysis/lightweight design/topology optimization/variable density method分类
交通工程引用本文复制引用
张淼,赵长利,陈秀生,李大成,王九川..半挂车空气悬架导向臂轻量化研究[J].农业装备与车辆工程,2026,64(8):26-30,43,6.基金项目
山东省重点研发计划"12t空气悬架的轻量化设计及产业化"(2025TSGCCZZB0681) （2025TSGCCZZB0681）
