alexa Experiments on Vibration Mitigation with a Mass-Spring-Series Model
ISSN: 2165-784X

Journal of Civil & Environmental Engineering
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Research Article

Experiments on Vibration Mitigation with a Mass-Spring-Series Model

Chen-Ming Kuo1, Chih-Chiang Lin1*, Yi-Rong Lin2 and Cheng-Hao Huang1

1Department of Civil Engineering, National Cheng Kung University, Taiwan

2Department of Civil Engineering, National Taiwan University, Taiwan

*Corresponding Author:
Chih-Chiang Lin
Department of Civil Engineering
National Cheng Kung University, Taiwan
Tel: +886-6-2085608
E-mail: [email protected]

Received date: September 08, 2016; Accepted date: October 18, 2016; Published date: October 20, 2016

Citation: Kuo CM, Lin CC, Lin YR, Huang CH (2016) Experiments on Vibration Mitigation with a Mass-Spring-Series Model. J Civil Environ Eng 6:253. doi: 10.4172/2165-784X.1000253

Copyright: © 2016 Kuo CM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A mass-spring-series model was assembled and tested using displacement-controlled vibrations in order to validate the effectiveness of vibration mitigation in a floating slab track. A mass mounted with an accelerometer was isolated with a spring from the vibration source. The other end of the mass was also connected with a spring to the fixed end. The spring coefficients and natural frequencies of the mass-spring combinations were carefully measured and verified. The time histories of the vibration amplitude indicated that properly tuned combinations of mass and springs effectively retain vibrations in the designated mass and reduce propagation and reflection. It was determined that using a stiff spring to confront the excitation source and a soft spring as a foundation isolator may alleviate vibration propagation and reduce vibrations reflected to the excitation. The drawbacks of the experimental design were also discussed.

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