华侨大学学报（自然科学版）2017，Vol.38Issue(6)：753-759,7.DOI:10.11830/ISSN.1000-5013.201706044
汽车悬架非线性螺旋弹簧的设计与仿真分析
Design and Simulation Analysis of Nonlinear Coil Spring for Automobile Suspension
摘要
Abstract
By fitting the characteristic curve of the air spring and using the formula of the coil spring stiffness,the relationship between the medium diameter and height of the coil spring was found.The load characteristics of the three-dimensional model were analyzed in ANSYS,and the result data was fitted to the characteristic curve equation of the designed spring.The dynamic equation of a quarter suspension model was established,the nonlinear coil spring characteristic curve equation was linearized by the perturbation method and then got into the dynamic equation.The simulation model was established in MATLAB/Simulink,and the results were compared with those of the quarter fixed stiffness suspension system.The simulation results show that the nonlinear coil spring designed by using the nonlinearity of the air spring can improve the sit comfort and ride comfort of vehicle,and the parameters of the variable stiffness are improved greatly.关键词
汽车/空气弹簧/非线性螺旋弹簧/悬架系统/曲线拟合Key words
automobile/air spring/nonlinear coil spring/suspension system/curve fitting分类
交通工程引用本文复制引用
李军,李学鋆..汽车悬架非线性螺旋弹簧的设计与仿真分析[J].华侨大学学报（自然科学版）,2017,38(6):753-759,7.基金项目
国家自然科学基金资助项目(51305472) （51305472）
重庆市工程技术中心科研基金资助(CSCT2015YFPT_GCJSYJZX011) （CSCT2015YFPT_GCJSYJZX011）
重庆市重点实验室科研基金资助项目(CSCT2015YFPT-ZDSYS30001) （CSCT2015YFPT-ZDSYS30001）
