中国机械工程

• 机械基础工程 • 上一篇    下一篇

基于鱼群算法的永磁体-电磁阀式磁流变阻尼器半主动悬架系统

胡红生1;肖平2;江明2;欧阳青1   

  1. 1.嘉兴学院机电工程学院,嘉兴,314001
    2.安徽工程大学机械与汽车学院,芜湖,230031
  • 出版日期:2017-11-10 发布日期:2017-11-07
  • 基金资助:
    国家自然科学基金资助项目(51575001);
    浙江省公益性技术项目(2016C31051);
    安徽省高校自然科学研究重点项目(KJ2016A799);
    嘉兴市科技计划重点工业项目(2016AY13003)
    National Natural Science Foundation of China (No. 51575001)

Semi-active Suspension System with Novel Permanent Magnet-solenoid Valve Type MR Damper by Artificial Fish Swarm Optimization Algorithm

HU Hongsheng1;XIAO Ping2;JIANG Ming2;OUYANG Qing1   

  1. 1.College of Mechanical and Electrical Engineering, Jiaxing University, Jiaxing,Zhejiang,314001
    2.School of Mechanical and Automotive, Anhui Polytechnic University, Wuhu, Anhui,230031
  • Online:2017-11-10 Published:2017-11-07
  • Supported by:
    National Natural Science Foundation of China (No. 51575001)

摘要: 为了提高汽车悬架系统工作性能,对磁流变阻尼器半主动悬架控制系统进行了研究。首先,基于磁流变阻尼器工作原理,将永磁体与电磁阀引入其中,设计新型磁流变阻尼器并建立了仿真模型,示功特性试验结果表明,所设计的新型阻尼器可以满足汽车悬架的使用要求,同时,速度特性试验表明所建立的阻尼器模型具有较高的可信度;其次,基于牛顿定律建立了7自由度整车悬架模型;为了提高悬架控制效果,在对常规鱼群算法进行改进的基础上,设计了适合汽车悬架系统最优控制器的鱼群算法,实现了两者的集成控制;最后,进行了仿真试验。试验结果表明,与被动悬架相比,基于鱼群最优控制算法控制的汽车车身质心垂直加速度、俯仰角加速度、侧倾角加速度分别减小了38.95%、35.12%、35.98%,有效地提高了汽车的动力学性能。

关键词: 磁流变阻尼器, 永磁体, 电磁阀, 半主动悬架, 鱼群算法

Abstract: A semi-active suspension control system with MR damper was studied in order to improve the performances of automobile suspension systems. Firstly, a new type of MR damper with permanent magnet and solenoid valve structure configuration was designed according to the MR fluid theory. The theoretical dynamics model of MR damper was established and verified with high credibility by F-v experimental curves. In addition, the F-S indicator diagrams of damper show that it may satisfy the operating requirements of vehicle suspensions. Secondly, a 7-DOF mathematical vibration model of vehicle suspensions was set up according to the principles of vehicle system dynamics. The LQG controller using the improved artificial fish swarm algorithm was proposed to reduce the structural responses in the vehicle suspension system. Finally, the simulation experiments of vehicle suspension systems were carried out. Compared to the passive systems, the semi-active suspension systems based on the artificial fish swarm algorithm may be significantly improve the vehicle dynamics performance, where the vehicle body centroid vertical acceleration, pitching angular acceleration and vehicle roll angle are decreased by 38.95%、35.12%、35.98% respectively.

Key words: magnetorheological (MR) damper, permanent magnet, solenoid valve, semi-active suspension, artificial fish swarm algorithm

中图分类号: