A Six Degrees-of-Freedom Vibration Isolation Platform Supported by a Hexapod of Quasi-Zero-Stiffness Struts

被引：80

作者：

Zhou, Jiaxi ^{[1
]}

Wang, Kai ^{[1
]}

Xu, Daolin ^{[2
,3
]}

Ouyang, Huajiang ^{[4
]}

Li, Yingli ^{[5
]}

机构：

[1] Hunan Univ, Coll Mech & Vehicle Engn, Changsha 410082, Hunan, Peoples R China

[2] Coll Mech & Vehicle Engn, Changsha 410082, Hunan, Peoples R China

[3] State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China

[4] Univ Liverpool, Sch Engn, Liverpool L69 3GH, Merseyside, England

[5] Cent S Univ, Sch Traff & Transportat Engn, Changsha 410082, Hunan, Peoples R China

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 2017年 / 139卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Degrees of freedom (mechanics) - Electric connectors - Stiffness - Vibration analysis;

D O I：

10.1115/1.4035715

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A platform supported by a hexapod of quasi-zero-stiffness (QZS) struts is proposed to provide a solution for low-frequency vibration isolation in six degrees-of-freedom (6DOFs). The QZS strut is developed by combining a pair of mutually repelling permanent magnets in parallel connection with a coil spring. Dynamic analysis of the 6DOFs QZS platform is carried out to obtain dynamic responses by using the harmonic balance method, and the vibration isolation performance in each DOF is evaluated in terms of force/ moment transmissibility, which indicates that the QZS platform perform a good function of low-frequency vibration isolation within broad bandwidth, and has notable advantages over its linear counterpart in all 6DOFs.

引用

页数：5

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