On the force transmissibility of a vibration isolator with quasi-zero-stiffness

被引:448
作者
Carrella, A. [1 ]
Brennan, M. J. [1 ]
Kovacic, I. [2 ]
Waters, T. P. [1 ]
机构
[1] Univ Southampton, Inst Sound & Vibrat Res, Southampton SO17 1BJ, Hants, England
[2] Univ Novi Sad, Fac Tech Sci, Dept Mech, Novi Sad, Serbia
关键词
D O I
10.1016/j.jsv.2008.11.034
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In this article the force transmissibility of a quasi-zero-stiffness (QZS) isolator is considered. The isolator comprises a vertical spring and two oblique springs that are either linear. linear with pre-stress or softening nonlinear with pre-stress. The force transmissibility of such a system is derived and compared with that of a linear system. Assuming light damping simple approximate expressions for the maximum transmissibility and jump-down frequencies arc derived. It is shown that there are advantages in having nonlinear and pre-stressed oblique springs compared to the other configurations, and that all the QZS systems can outperform the linear system provided that the system parameters are chosen appropriately. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:707 / 717
页数:11
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