Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9661
Title: Vibration isolation via a scissor-like structured platform
Authors: Sun, X
Jing, X 
Xu, J
Cheng, L 
Issue Date: 2014
Source: Journal of sound and vibration, 2014, v. 333, no. 9, p. 2404-2420 How to cite?
Journal: Journal of Sound and Vibration 
Abstract: More and more attentions are attracted to the analysis and design of nonlinear vibration control/isolation systems for better isolation performance. In this study, an isolation platform with n-layer scissor-like truss structure is investigated to explore novel design of passive/semi-active/active vibration control/isolation systems and to exploit potential nonlinear benefits in vibration suppression. Due to the special scissor-like structure, the dynamic response of the platform has inherent nonlinearities both in equivalent damping and stiffness characteristics (although only linear components are applied), and demonstrates good loading capacity and excellent equilibrium stability. With the mathematical modeling and analysis of the equivalent stiffness and damping of the system, it is shown that: (a) the structural nonlinearity in the system is very helpful in vibration isolation, (b) both equivalent stiffness and damping characteristics are nonlinear and could be designed/adjusted to a desired nonlinearity by tuning structural parameters, and (c) superior vibration isolation performances (e.g., quasi-zero stiffness characteristics etc.) can be achieved with different structural parameters. This scissor-like truss structure can potentially be employed in different engineering practices for much better vibration isolation or control.
URI: http://hdl.handle.net/10397/9661
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2013.12.025
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