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A Unified Model for Quasi-Zero-Stiffness Passive Vibration Isolators With Symmetric Nonlinearity

[+] Author Affiliations
Hyeong-Joon Ahn

Soongsil University, Seoul, Korea

Paper No. DETC2010-28604, pp. 689-693; 5 pages
  • ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 22nd International Conference on Design Theory and Methodology; Special Conference on Mechanical Vibration and Noise
  • Montreal, Quebec, Canada, August 15–18, 2010
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4413-7 | eISBN: 978-0-7918-3881-5
  • Copyright © 2010 by ASME


Various quasi-zero stiffness (QZS) passive vibration isolators were developed for protecting a system against vibration. This paper presents a unified model of QZS passive vibration isolators with symmetric nonlinearity. First, various types of QZS passive isolators are analyzed and the unified model for them is proposed. The unified model is found to be a Duffing equation with odd power polynomials. Dynamic behaviors of QZS passive isolators are analyzed using the unified model. Design methodology and implementation of a QZS passive isolator with symmetric nonlinearity are discussed.

Copyright © 2010 by ASME



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