不同形态螺旋弹簧在悬架中的应力计算与仿真  

Stress Calculation and Simulation of Helical Spring with Different Shape in Suspension

作　　者：张功学[1] 白园 王彪[1] 马车 ZHANG Gong-xue;BAI Yuan;WANG Biao;MA Che(College of Mechanical and Electrical Engineering,Shaanxi University of Science&Technology,Shaanxi Xi’an710021,China)

机构地区：[1]陕西科技大学机电工程学院

出　　处：《机械设计与制造》2019年第10期197-200,205,共5页Machinery Design & Manufacture

基　　金：陕西省科技厅自然科学基础研究计划项目(2014JM7264);国家自然科学基金资助项目(59493300);教育部博士点基金资助项目(9800462)

摘　　要：针对传统汽车螺旋弹簧计算方法无法实际表达弹簧的工作状况,重新推导了考虑弯矩、扭矩在内的弹簧应力计算公式。用SolidWorks软件建立了满足某款汽车麦弗逊悬架两种不同形态的螺旋弹簧三维模型,并将模型导入到ANSYS Workbench中进行有限元分析,对弹簧的应力公式进行了验证。由有限元分析得到截锥弹簧的强度比圆柱弹簧的好一些,截锥弹簧的刚度比圆柱弹簧的刚度要略低。对于两种弹簧在各阶模态发生最大变形的位置,可以适当增加这些位置的刚度,以便提高汽车的平顺性。最后对两种弹簧的悬架进行谐响应分析,得到截锥弹簧悬架比圆柱螺旋弹簧悬架更稳定。In view of the traditional automobile coil spring calculation method can not actually express the spring working condition.The stress formula of spring stress considering bending moment and torque is deduced.Three-dimensional model of spiral spring with two different forms of vehicle McPherson suspension was established by using SolidWorks software.The model was introduced into ANSYS Workbench for finite element analysis,and the stress formula of spring was verified.The finite element analysis shows that the strength of the truncated cone spring is better than that of the cylindrical spring,and the stiffness of the truncated cone spring is lower than that of the cylindrical spring.The stiffness of these positions can be increased by increasing the maximum deformation of the two springs in order to improve the ride comfort of the vehicle.Finally,the two kinds of spring suspension response analysis,the truncated cone spring suspension is more stable than the cylindrical coil spring suspension.

关 键 词：圆柱弹簧 截锥弹簧 应力公式 模态分析 

分 类 号：TH16[机械工程—机械制造及自动化] U463.33[机械工程—车辆工程]