Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31294
Title: Multi-direction vibration isolation with quasi-zero stiffness by employing geometrical nonlinearity
Authors: Sun, X
Jing, X 
Keywords: Geometrical nonlinearity
Quasi-zero-stiffness (QZS) system
Scissor-like structure (SLS)
Vibration isolation
Issue Date: 2015
Publisher: Academic Press
Source: Mechanical systems and signal processing, 2015, v. 62, p. 149-163 How to cite?
Journal: Mechanical systems and signal processing 
Abstract: The study proposes a novel vibration isolator with 3D quasi-zero-stiffness (QZS) property. The remarkable feature of the proposed system is to apply symmetrically scissor-like structures (SLS) in the horizontal directions, together with a traditional spring-mass-damper system assembled vertically with positive stiffness. With the mathematical modeling of the proposed system, it is shown that the stiffness and damping properties are nonlinear due to nonlinear geometric relations within the SLSs and both can be adjusted via structural parameters of the system. Theoretical analysis with the harmonic balance method reveals that the system can demonstrate QZS property in 3 directions, and can achieve much better 3D vibration isolation performance, including high-static and quasi-zero-dynamic stiffness, and much larger displacement range around equilibrium, compared with an existing QZS system in the literature. The results provide a novel and significant multi-direction vibration isolation method using structural nonlinearity with noticeable performance but using only passive elements.
URI: http://hdl.handle.net/10397/31294
ISSN: 0888-3270
EISSN: 1096-1216
DOI: 10.1016/j.ymssp.2015.01.026
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

12
Last Week
0
Last month
0
Citations as of Sep 15, 2017

WEB OF SCIENCETM
Citations

11
Last Week
0
Last month
0
Citations as of Sep 16, 2017

Page view(s)

40
Last Week
1
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.