Design and experimental study of a compact quasi-zero-stiffness isolator using wave springs

作     者：WANG Qiang ZHOU JiaXi WANG Kai XU DaoLin WEN GuiLin WANG Qiang;ZHOU JiaXi;WANG Kai;XU DaoLin;WEN GuiLin

作者机构：State Key Laboratory of Advanced Design and Manufacturing for Vehicle BodyChangsha 410082China College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China School of Mechanical and Electric EngineeringGuangzhou UniversityGuangzhou 510006China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2021年第64卷第10期

页      面：2255-2271页

核心收录：

学科分类：12[管理学] 083002[工学-环境工程] 1204[管理学-公共管理] 120402[管理学-社会医学与卫生事业管理(可授管理学、医学学位)] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0837[工学-安全科学与工程] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11972152,12002122 and 11832009) the Natural Science Foundation of Hunan Province(Grant No.2020JJ4208) China Postdoctoral Science Foundation(Grant No.2020M672476) 

主　　题：quasi-zero-stiffness vibration isolator space saving magnet rings wave spring 

摘      要：The quasi-zero-stiffness(QZS)vibration isolation has been proven to be an effective way to isolate low-frequency ***,most of the existing QZS isolators are space-consuming,which could not be employed in the space-limited *** this paper,a quite compact QZS isolator is engineered by connecting a pair of mutually repulsive magnet rings and a space-saving wave spring in parallel,called WQZS *** restoring force of the magnet ring is derived by the equivalent magnetic charge method,and an empirical formula for the restoring force of the wave spring is derived by the least squares method based on experimental *** dynamic model of the WQZS vibration isolation system is built,and the vibration isolation performance is evaluated through ***,an experimental prototype is fabricated,and the experimental tests on frequency sweep are carried *** results show that compared with the linear counterpart,the vibration isolation frequency of the WQZS isolator is reduced by 48.89%,and the peak transmissibility is decreased by 59.33%.Most importantly,the space occupancy of the WQZS isolator designed in this paper is much lower than that of the traditional QZS isolators,and thus it should be a potential solution for low-frequency vibration isolation in the space-limited environment.