冗余六自由度并联隔振平台多维隔振性能研究  

Multi-dimensional isolation performances of a redundant 6DOF parallel vibration isolation platform

作　　者：张兵[1] 黄华 蔡佳敏 蒋子良 朱方正 汤少东 钱鹏飞[1] ZHANG Bing;HUANG Hua;CAI Jiamin;JIANG Ziliang;ZHU Fangzheng;TANG Shaodong;QIAN Pengfei(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《振动与冲击》2022年第2期26-32,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金(51805215,52075223);江苏大学高级人才科研启动基金(14JDG048)。

摘　　要：隔振平台能够抑制动载设备在转场运输及工作过程中受到的各种振动冲击,使其保持最佳的使用寿命和工作精度;针对应用于动载设备的隔振平台存在着负载质量轻、隔振维数少以及低频隔振效果不佳等问题,提出了一种液压冗余式、主被动复合支撑的六自由度并联隔振平台,结合并联隔振平台参数化的主被动混合隔振数学模型和模糊PID复合控制算法,针对其被动隔振性能、主被动混合隔振性能进行分析,仿真结果表明,基于模糊PID复合控制的主被动混合隔振明显优于被动隔振,能够衰减90%以上的振动干扰,扩大了隔振频率的带宽。The vibration impact on the dynamic load equipment in transit and working processes can be suppressed by a vibration isolation platform so as to maintain the best service life and working accuracy.In view of the disadvantages,such as less load bearing capacity,few vibration isolation dimension and low frequency vibration isolation effect,existing in conventional vibration isolation platforms applied to dynamic load equipment,a six degrees of freedom parallel vibration isolation platform with hydraulic redundancy and active passive composite support was proposed.Combining the parametric active passive hybrid vibration isolation mathematical model of the platform with the fuzzy PID composite control algorithm,the passive and the hybrid vibration isolation performances were analyzed.The simulation results show that the hybrid vibration isolation based on the fuzzy PID composite control is obviously superior to the pure passive vibration isolation,which can attenuate more than 90%vibration interference and expand the bandwidth of vibration isolation frequency.

关 键 词：并联隔振平台 动力学 被动隔振 混合隔振 

分 类 号：TB535.1[理学—物理]