Experimental and Theoretical Study of Viscoelastic Dampers with Different Matrix Rubbers
Publication: Journal of Engineering Mechanics
Volume 142, Issue 8
Abstract
Viscoelastic (VE) dampers are one of the most popular structural control devices, and serious efforts have been undertaken to develop their availability in civil engineering. However, the performance of VE dampers is dependent on the energy dissipation properties of VE materials. In this study, several kinds of VE materials based on different matrix rubbers were developed, and tests on VE dampers based on nitrile butadiene rubber (NBR) matrix and silicone rubber (SR) matrix were carried out. The results indicate that NBR matrix VE dampers have a high energy dissipation capacity, whereas SR matrix VE dampers have stable performance under different working conditions. To clarify the mechanical properties of VE dampers based on NBR and SR matrices, the equivalent higher-order fractional derivative model, which takes into account the effects of temperature and frequency simultaneously, is proposed. The numerical results using this model are in accord with experimental results.
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Acknowledgments
Financial support for this research is provided by National Natural Science Foundation of China (11572088), the Key Research and Development Plan of Jiangsu Province (BE2015158), Project of 973, the Science and Technological Innovation Leading Young Talents Program of the Ministry of Science and Technology, and the Fundamental Research Funds for the Central Universities of China (3205005717). This support is gratefully acknowledged.
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Published In
Journal of Engineering Mechanics
Volume 142 • Issue 8 • August 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 7, 2015
Accepted: Feb 4, 2016
Published online: Apr 4, 2016
Published in print: Aug 1, 2016
Discussion open until: Sep 4, 2016
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