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Article: A study on AGV-induced floor micro-vibration in TFT-LCD high-technology fabs

TitleA study on AGV-induced floor micro-vibration in TFT-LCD high-technology fabs
Authors
Keywordsautomated guided vehicle (AGV)
damper
micro-vibration
moving loads
state-space procedure
Issue Date2012
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/106562744
Citation
Structural Control And Health Monitoring, 2012, v. 19 n. 3, p. 451-471 How to Cite?
AbstractThis study explores vertical floor micro-vibration induced by the automated guided vehicles (AGVs) in thin-film-transistor liquid-crystal-display (TFT-LCD) fabs. The state-space procedure is adopted to compute the AGV-induced floor vibration as it preserves the desired numerical stability and accuracy in high-frequency responses. The dynamic analysis of an AGV moving on an equivalent three-span beam model of a TFT-LCD building is simulated by taking into account various AGV speeds and engine forces. Numerical simulations demonstrate that if proper engine forces and excitation frequency contents of the AGV moving loads are used, the peak AGV-induced floor micro-vibration level can be predicted by the proposed method. Moreover, the effectiveness of vibration control by span-reduction as well as energy-dissipation by viscoelastic dampers is also examined. In comparison with span-reduction, application of energy-dissipation devices is more effective in vibration suppression as they enhance the damping characteristics of the multi-span floor system whose natural frequencies are potentially in resonance with the excitation frequencies of the AGV moving loads ranging in a broad bandwidth. Copyright © 2011 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/135071
ISSN
2015 Impact Factor: 2.082
2015 SCImago Journal Rankings: 1.549
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong SARHKU7102/08E
University of Hong Kong201007176174
Funding Information:

The research described here was supported by the Research Grants Council of the Hong Kong SAR (Project No. HKU7102/08E and The University of Hong Kong (Small Project Funding, Project Code: 201007176174). Moreover, the authors thank Dr L. L. Chung, National Center for Research on Earthquake Engineering (NCREE), Taiwan, for his instruction in signal processing of the micro-vibration.

References

 

DC FieldValueLanguage
dc.contributor.authorLee, CLen_HK
dc.contributor.authorWang, YPen_HK
dc.contributor.authorSu, RKLen_HK
dc.date.accessioned2011-07-27T01:27:27Z-
dc.date.available2011-07-27T01:27:27Z-
dc.date.issued2012en_HK
dc.identifier.citationStructural Control And Health Monitoring, 2012, v. 19 n. 3, p. 451-471en_HK
dc.identifier.issn1545-2255en_HK
dc.identifier.urihttp://hdl.handle.net/10722/135071-
dc.description.abstractThis study explores vertical floor micro-vibration induced by the automated guided vehicles (AGVs) in thin-film-transistor liquid-crystal-display (TFT-LCD) fabs. The state-space procedure is adopted to compute the AGV-induced floor vibration as it preserves the desired numerical stability and accuracy in high-frequency responses. The dynamic analysis of an AGV moving on an equivalent three-span beam model of a TFT-LCD building is simulated by taking into account various AGV speeds and engine forces. Numerical simulations demonstrate that if proper engine forces and excitation frequency contents of the AGV moving loads are used, the peak AGV-induced floor micro-vibration level can be predicted by the proposed method. Moreover, the effectiveness of vibration control by span-reduction as well as energy-dissipation by viscoelastic dampers is also examined. In comparison with span-reduction, application of energy-dissipation devices is more effective in vibration suppression as they enhance the damping characteristics of the multi-span floor system whose natural frequencies are potentially in resonance with the excitation frequencies of the AGV moving loads ranging in a broad bandwidth. Copyright © 2011 John Wiley & Sons, Ltd.en_HK
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/106562744en_HK
dc.relation.ispartofStructural Control and Health Monitoringen_HK
dc.rightsStructural Control and Health Monitoring. Copyright © John Wiley & Sons Ltd.-
dc.rightsThe definitive version is available at www3.interscience.wiley.com-
dc.subjectautomated guided vehicle (AGV)en_HK
dc.subjectdamperen_HK
dc.subjectmicro-vibrationen_HK
dc.subjectmoving loadsen_HK
dc.subjectstate-space procedureen_HK
dc.titleA study on AGV-induced floor micro-vibration in TFT-LCD high-technology fabsen_HK
dc.typeArticleen_HK
dc.identifier.emailSu, RKL:klsu@hkucc.hku.hken_HK
dc.identifier.authoritySu, RKL=rp00072en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/stc.445en_HK
dc.identifier.scopuseid_2-s2.0-84859731134en_HK
dc.identifier.hkuros188439en_US
dc.identifier.hkuros199958-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859731134&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue3en_HK
dc.identifier.spage451en_HK
dc.identifier.epage471en_HK
dc.identifier.isiWOS:000302471800010-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLee, CL=37064616400en_HK
dc.identifier.scopusauthoridWang, YP=36350499600en_HK
dc.identifier.scopusauthoridSu, RKL=7102627096en_HK

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