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Affiliation of Author(s):能源与动力学院

Title of Paper:Modeling and analysis of a high-static-lowdynamic stiffness vibration isolator with experimental investigation

Journal:J. Vibroeng.

Abstract:In order to attenuate low-frequency vibration, a novel nonlinear vibration isolator with high-static-low-dynamic stiffness (HSLDS) is developed in this paper by combining the negative stiffness corrector in parallel with a vertical linear spring. The force and stiffness characteristics are first derived by the static analysis. Then, the displacement transmissibility of the HSLDS system is obtained to evaluate the isolation performance using the harmonic balance method. The parametric analysis shows that the proposed HSLDS system can outperform the equivalent linear one in some aspects. Besides, the initial isolation frequency is defined and further investigated with the purpose of providing some useful guidelines for choosing parameter combinations conveniently. Finally, a prototype is developed and the experimental test is conducted to verify the isolation performance of the proposed HSLDS system. © 2018 Chun Cheng, et al.

ISSN No.:1392-8716

Translation or Not:no

Date of Publication:2018-06-01

Co-author:程春,王勇

Correspondence Author:程春,李舜酩,lsz