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Real-time performance monitoring of tuned mass damper system for a 183 m reinforced concrete chimney

Brownjohn, J.M.W., Carden, E.P., Goddard, C.R. and Oudin, G. (2010) Real-time performance monitoring of tuned mass damper system for a 183 m reinforced concrete chimney. Journal of Wind Engineering and Industrial Aerodynamics , 98 (3). pp. 169-179. ISSN 0167-6105

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Abstract

A 183 m reinforced concrete chimney for a coal-fired power station was instrumented in the latter part of its life during the construction of a replacement chimney. Because of concerns about large-amplitude response induced by interference effects from the new chimney in the prevailing upwind direction, a response monitoring system was installed, quickly followed by a tuned mass damper (TMD) system. As well as providing live display of the chimney response, the monitoring system was also used to check the functioning of the TMD. The monitoring system featured a direct implementation of the stochastic subspace identification procedure in the 'virtual instrument' controlling the system, so that modal damping values for the system were displayed automatically, in real-time. The system thus provided an immediate visual indication of increased damping levels during strong winds, showing the correct functioning of the TMD. The paper describes the chimney, the monitoring system and its installation, the data processing and system identification procedure, together with performance data before, during and after installation of the TMD. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type: Article
Copyright, Publisher and Additional Information: © 2010 Elsevier. This is an author produced version of a paper subsequently published in Journal of Wind Engineering and Industrial Aerodynamics. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Chimney; concrete; wind; vortex; shedding; damping; monitoring; system; identification
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 26 Apr 2010 09:45
Last Modified: 08 Feb 2013 17:00
Published Version: http://dx.doi.org/10.1016/j.jweia.2009.10.013
Status: Published
Publisher: Elsevier
Identification Number: 10.1016/j.jweia.2009.10.013
URI: http://eprints.whiterose.ac.uk/id/eprint/10764

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