Vol. 11, No. 4, 2016

Download this article
Download this article For screen
For printing
Recent Issues

Volume 12
Issue 3, 249–351
Issue 2, 147–247
Issue 1, 1–146

Volume 11, 5 issues

Volume 10, 5 issues

Volume 9, 5 issues

Volume 8, 8 issues

Volume 7, 10 issues

Volume 6, 9 issues

Volume 5, 6 issues

Volume 4, 10 issues

Volume 3, 10 issues

Volume 2, 10 issues

Volume 1, 8 issues

The Journal
Cover
Editorial Board
Research Statement
Scientific Advantage
Submission Guidelines
Submission Form
Subscriptions
Author Index
To Appear
 
ISSN: 1559-3959
Modeling and experimentation of a viscoelastic microvibration damper based on a chain network model

Chao Xu, Zhao-Dong Xu, Teng Ge and Ya-Xin Liao

Vol. 11 (2016), No. 4, 413–432
DOI: 10.2140/jomms.2016.11.413
Abstract

Viscoelastic (VE) dampers are widely used to attenuate structural vibration. Studies have mainly focused on the employment of VE dampers for reducing structural vibration in normal conditions, and only a few studies have considered the microvibration condition. In this paper, theoretical and experimental studies on the VE microvibration damper are conducted. First, the damping mechanism of the VE microvibration damper is analyzed from microperspectives and a mathematical model based on the chain network model is proposed. The contributions of cross-link and free-chain network chains to the damping characteristics of VE material are considered in this model. Second, an experimental study of the VE microvibration damper is conducted to verify the proposed model and to reveal the dynamic properties of the VE microvibration damper. The experimental results show that the dynamic properties of VE material are influenced by excitation frequency and insignificantly affected by displacement amplitude, and the VE material has good energy dissipation capacity. The proposed model is verified by comparing the experimental data and the numerical results. The results indicate that the proposed model can accurately describe the dynamic properties of the VE microvibration damper at different frequencies.

Keywords
viscoelastic microvibration damper, high energy dissipation, material microstructure, chain structure model, performance test
Milestones
Received: 2 November 2015
Revised: 21 April 2016
Accepted: 6 May 2016
Published: 4 August 2016
Authors
Chao Xu
Key Laboratory of C&PC Structures of the Ministry of Education
Southeast University
Nanjing, 210096
China
Zhao-Dong Xu
Key Laboratory of C&PC Structures of the Ministry of Education
Southeast University
Nanjing, 210096
China
Teng Ge
Key Laboratory of C&PC Structures of the Ministry of Education
Southeast University
Nanjing, 210096
China
Ya-Xin Liao
Changjiang Institute of Survey, Planning, Design and Research
Wuhan, 430010
China