噪声与振动控制2019，Vol.39Issue(2)：122-127,6.DOI:10.3969/j.issn.1006-1355.2019.02.024
汽车钢板弹簧动力学建模及应用研究
Dynamic Modeling and Application Research of Automobile Leaf Springs
摘要
Abstract
In traditional leaf spring dynamic modeling, the leaf spring is simplified as a shock absorber which only possesses static stiffness and damping with its dynamic characteristics ignored. So, the accuracy of vehicle ride comfort simulation analysis based on this model is low. In this paper, the influence of the dynamic characteristics of the leaf spring on the ride comfort of the whole vehicle is studied. According to the theory of kinematics, the kinematic formula of the leaf spring is deduced, and the influence of the kinematic characteristics of the leaf spring on its elastic restoring force and damping force is analyzed. A three-dimensional finite element model of the leaf spring is established using Hyper Mesh and ANSYS, and this model is introduced into the vehicle dynamics model by means of ADAMS. The ride comfort analysis of the vehicle dynamics model shows that the maximum errors of the vehicle ride comfort simulation results by using the leaf spring model and using the shock absorber model are 14.67 % and 30.48 % respectively in comparison with the actual vehicle test results. So, results of the model of leaf spring established in this paper are closer to the actual vehicle test results than that of the shock absorber model.关键词
振动与波/钢板弹簧/运动特性/动力学模型/随机路面/平顺性Key words
vibration and wave/ leaf spring/ kinetic characteristic/ dynamic model/ random road/ ride comfort分类
交通工程引用本文复制引用
杨超,刘夫云,赵亮亮,王秋花,张秋峰..汽车钢板弹簧动力学建模及应用研究[J].噪声与振动控制,2019,39(2):122-127,6.基金项目
广西科学研究与技术开发资助项目(桂科AC16380078) （桂科AC16380078）
桂林市科学研究与技术开发资助项目(20170104-1) （20170104-1）
