普及型轿车悬架性能优化及整车平顺性研究  

Suspension Performance Optimization and Ride Comfort Research on Popular Car

作　　者：任成龙[1] 吴冬铃 

机构地区：[1]南京工程学院汽车与轨道交通学院,江苏南京211167

出　　处：《机械设计与制造》2014年第7期199-201,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(51305194);南京工程学院青年基金项目(QKJB201206);江苏省大学生实践创新训练计划项目(201311276035Y)

摘　　要：以某在用普及型轿车为研究对象,运用虚拟样机技术,建立麦弗逊前悬架虚拟样机模型。通过虚拟仿真,得到其前轮定位参数,揭示其运动学规律。通过修改模型硬点坐标,优化前悬架性能使其达到使用要求。基于ADAMS/Car建立整车仿真模型;建立粗糙沥青路面和粗糙水泥路面两种随机路面输入,以及三角形凸块脉冲路面输入,并分别进行汽车平顺性仿真。得到人体振动的加权加速度均方根值和座椅处的最大垂向加速度,分别对随机路面输入和脉冲路面输入下的汽车平顺性进行评价。结果表明:随机路面输入下汽车具有较好的平顺性,脉冲路面输入下对乘员健康无危害。The virtual prototype model of McPherson suspension is built using virtual prototype technique. The front wheel alignment parameters are obtained and the kinematic behaviors are revealed through simulations. By modifying the model of hardpoint, the performarwe of front suspension is improved. The Full-Car model is built based on ADAMS/Car. The rough asphalt pavement and rough cement pavement random road excitation and triangle convex block pulse road excitation are established, and the simulation of vehicle ride comfort are carried out respectively. The weighted acceleration root-meansquare value of human body vibration under random rode excitation and the maximum vertical acceleration of seat under pulse rode excitation are got, and the vehicle ride comfort are evaluated respectively. The result shows that the vehicle ride comfort is suitable under random rode excitation, and is not health hazard under pulse rode excitation.

关 键 词：普及型轿车 麦弗逊悬架 平顺性 ADAMS仿真 

分 类 号：TH16[机械工程—机械制造及自动化]