钢铝复合洗扫车副车架轻量化设计  

Lightweight Design of Steel-aluminum Composite Subframe of Cleaning Sweeper Truck

作　　者：林育恒 Lin Yuheng

机构地区：[1]河南轻工职业学院

出　　处：《工程机械》2024年第10期83-87,I0021,共6页Construction Machinery and Equipment

基　　金：国家自然科学基金项目:汽车车身基于大数据的结构-材料-性能一体化设计方法研究(51705468)。

摘　　要：以某型号混合动力洗扫车副车架为研究对象,建立副车架有限元模型,对副车架进行颠簸、加速、转弯工况下的静力学分析及自由模态分析。应用正交试验法确定副车架中的轻量化部件,并将这些部件的材料由高强度钢替换成铝合金,得到钢铝复合副车架。采用尺寸优化的方法对完成材料替换的钢铝复合副车架进行优化,进一步减重。研究结果表明,采用正交试验结合尺寸优化法得到的钢铝复合副车架,在满足使用安全要求的前提下,质量减轻6.57kg,降幅为17.08%,获得较好的轻量化效果。Taking the subframe of a hybrid cleaning sweeper truck as the research object,a finite element model of the subframe is estab lished,and static analysis and free modal analysis of the subframe are carried out under the working conditions of bumping,acceleration and turning.The orthogonal experimental method is applied to deter mine the lightweight parts of the subframe,and the materials of these parts are replaced by aluminum alloy from high-strength steel to obtain a steel-aluminum composite subframe.The dimensional optimization method is applied to optimize the steel-alu minum composite subframe with completed material replacement for further weight reduction.The research results show that,the steel-aluminum composite subframe ob tained through a combination of orthogonal experiment and dimensional optimization method,under the premise of meeting the safety requirements,loses the weight by 6.57%,with a reduction of 17.08%,and ob tains a good lightweighting effect。

关 键 词：正交试验 钢铝复合副车架 尺寸优化 轻量化 

分 类 号：U469.691[机械工程—车辆工程]