考虑主动辅助避震系统的推杆式悬架设计研究  

Design and Research of Push Rod Suspension Under the Consideration of Active Assistant Shock Absorb System

作　　者：王孝鹏[1,2] 吴龙 刘乔峰[3] WANG Xiao-peng;WU Long;LIU Qiao-feng(School of Mechanical&Electronic Engineering,Sanming University,Fujian Sanming 365004,China;Engineering Research Center in Fujian Province University for Modern Mechanical Design and Manufacturing Technology,Fujian Sanming 365004,China;School of Mechanical Engineering and Automation,Fuzhou University,Fujian Fuzhou 350108,China)

机构地区：[1]三明学院机电工程学院,福建三明365004 [2]机械现代设计制造技术福建省高校工程研究中心,福建三明365004 [3]福州大学机械工程及自动化学院,福建福州350108

出　　处：《机械设计与制造》2024年第7期215-220,共6页Machinery Design & Manufacture

基　　金：福建省中青年教师教育科研专项(JAT190689)。

摘　　要：通过设计避震器纵置式推杆悬架模型,采用悬架传力模型精确计算出悬架刚度及匹配阻尼特性;整车稳定性工况计算表明:使用纵置避震器弹簧推杆悬架结构的FSAE整车存在严重侧滑与摆尾问题,针对此问题提出一种在旋转支架摆臂反方向增加主动辅助避震器系统的设计思路、模型结构及双模糊控制算法,此设计的原理是通过抑制旋转支架摆臂的运动范围进而改变车身的振动特性,同时辅助避震器系统设计还可起到横向稳定杆的作用;均方根值显示:车身俯仰角加速度性能提升89.3%,侧倾角加速度性能提升79.3%,横摆角加速度性能提升12.1%,垂向加速度性能提升50.8%。By establishing the push-rod suspension model of the vertical shock absorber,the suspension stiffness and matching damping characteristics are calculated accurately by the suspension force transmission model.The calculation of the stability of the whole vehicle shows that the FSAE racing car has serious sideslip and tail swing problems using the push-rod suspension structure of the longitudinal suspension spring.Aiming at this problem,a design idea,model structure and double fuzzy control algorithm for adding an active auxiliary shock absorber system in the opposite direction of the swing arm of the rotating support are proposed.The design is to change the vibration characteristics of the body by inhibiting the motion range of the swing arm,and the play a important role in lateral stability.Results showed that the acceleration performance of vehicle body pitching angle was improved by 89.3%,the acceleration performance of lateral inclination Angle was improved by 79.3%,the acceleration performance of yaw Angle was improved by 12.1%,and the acceleration performance of vertical acceleration was improved by 50.8%.

关 键 词：弹簧刚度 避震器阻尼 稳定性工况 主动辅助避震系统 

分 类 号：TH16[机械工程—机械制造及自动化] TH12[机械工程—车辆工程] U270.1[交通运输工程—载运工具运用工程]