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An H-infinity design approach to the control of human induced vibration in office floor structures

An H-infinity design approach to the control of human induced vibration in office floor structures
An H-infinity design approach to the control of human induced vibration in office floor structures
Modern design and manufacturing methods have led to the widespread use of slender beams in the construction of office buildings. Coupled with the increasing use of open-plan areas this has led to an increasing problem of excessive floor vibrations as a result of human walking which causes annoyance and discomfort for occupants. One viable solution is to use active vibration control methods to suppress the levels of floor vibration. A number of research studies have proposed the use of decentralised velocity feedback schemes and some success at full scale has been reported. However, the use of such localised schemes can result in increased levels of vibration at other remote locations on the floor. In this paper this problem is highlighted using a finite element model of a typical office floor structure. In addition it is shown that an H-infinity optimisation framework utilising linear matrix inequalities can be used to provide controllers that reduce the global response of the floor. The framework allows for different controller architectures that include both decentralised collocated velocity feedback at limited locations on the floor and centralised dynamic compensators
Przedwojski, Marek
2433b187-67fe-43e5-bebe-487beefdf5fb
Daley, Stephen
53cef7f1-77fa-4a4c-9745-b6a0ba4f42e6
Przedwojski, Marek
2433b187-67fe-43e5-bebe-487beefdf5fb
Daley, Stephen
53cef7f1-77fa-4a4c-9745-b6a0ba4f42e6

Przedwojski, Marek and Daley, Stephen (2013) An H-infinity design approach to the control of human induced vibration in office floor structures. 20th International Congress on Sound and Vibration (ICSV20), Bangkok, Thailand. 07 - 11 Jul 2013. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Modern design and manufacturing methods have led to the widespread use of slender beams in the construction of office buildings. Coupled with the increasing use of open-plan areas this has led to an increasing problem of excessive floor vibrations as a result of human walking which causes annoyance and discomfort for occupants. One viable solution is to use active vibration control methods to suppress the levels of floor vibration. A number of research studies have proposed the use of decentralised velocity feedback schemes and some success at full scale has been reported. However, the use of such localised schemes can result in increased levels of vibration at other remote locations on the floor. In this paper this problem is highlighted using a finite element model of a typical office floor structure. In addition it is shown that an H-infinity optimisation framework utilising linear matrix inequalities can be used to provide controllers that reduce the global response of the floor. The framework allows for different controller architectures that include both decentralised collocated velocity feedback at limited locations on the floor and centralised dynamic compensators

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e-pub ahead of print date: 7 July 2013
Venue - Dates: 20th International Congress on Sound and Vibration (ICSV20), Bangkok, Thailand, 2013-07-07 - 2013-07-11
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 373447
URI: http://eprints.soton.ac.uk/id/eprint/373447
PURE UUID: aaa55234-0abb-432f-b7a8-16401aaafed6

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Date deposited: 19 Jan 2015 11:18
Last modified: 14 Mar 2024 18:52

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Contributors

Author: Marek Przedwojski
Author: Stephen Daley

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