摘要
针对某载货汽车车架的静动态特性,进行了优化设计。在建立有限元模型的基础上,取弯曲应力灵敏度与质量灵敏度比值绝对值较大的横梁和纵梁板厚度为设计变量,采取灵敏度分析方法对车架结构进行了轻量化优化设计。优化结果表明,基于灵敏度分析的优化方法可行,在提高性能的同时减轻了车架质量。
Optimization design is carried out in light of the static and dynamic characteristics of a truck.On the basis of the finite element model established,the plate thicknesses of the transverse and longitudinal beams with relatively large absolute value in terms of bending stress sensitivity-mass sensitivity ratio are selected as variables in our design.Then lightweight optimization design of the truck frame is conducted through sensitivity analysis.Results show that optimization method based on sensitivity analysis proves to be feasible for it improves vehicle performance while reducing the frame mass.
出处
《汽车技术》
北大核心
2013年第1期20-22,26,共4页
Automobile Technology
基金
合肥工业大学2011年大学生创新性实验计划项目基金资助(项目编号111035969)
国家自然科学基金
间隙主导型汽车摆振发生机理及动力学性态研究(项目编号50975071)
关键词
载货汽车车架
灵敏度分析
轻量化
结构优化
Truck frame
Sensitivity analysis
Lightweight
Structural optimization
