Damage Localization of Structures Based on Modal Characteristics Changes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F03%3A01092468" target="_blank" >RIV/68407700:21610/03:01092468 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Damage Localization of Structures Based on Modal Characteristics Changes

Popis výsledku v původním jazyce

This paper summarizes pieces of knowledge, which authors obtained from solution of problems with utilization of experimentally obtained modal characteristics (frequencies, natural modes and damping) for analysis of structural state of structures and simple structural elements, especially for damage localization of structures. The state deterioration of beams was done by static and dynamic fatigue loading. After each step of loading a complete modal analysis was performed to determine modal parameters ofthe beams. In particular, modal assurance coefficients MAC, coordinate modal assurance criterions COMAC, changes of a mode surface curvature CAMOSUC, changes of a modal flexibility matrix and curvatures of changes of a modal flexibility matrix defined by authors were computed. Pieces of knowledge obtained on simple structural elements were used for an analysis of a development of the state of three road pre-stressed concrete bridges in Czech Republic

Název v anglickém jazyce

Damage Localization of Structures Based on Modal Characteristics Changes

Popis výsledku anglicky

This paper summarizes pieces of knowledge, which authors obtained from solution of problems with utilization of experimentally obtained modal characteristics (frequencies, natural modes and damping) for analysis of structural state of structures and simple structural elements, especially for damage localization of structures. The state deterioration of beams was done by static and dynamic fatigue loading. After each step of loading a complete modal analysis was performed to determine modal parameters ofthe beams. In particular, modal assurance coefficients MAC, coordinate modal assurance criterions COMAC, changes of a mode surface curvature CAMOSUC, changes of a modal flexibility matrix and curvatures of changes of a modal flexibility matrix defined by authors were computed. Pieces of knowledge obtained on simple structural elements were used for an analysis of a development of the state of three road pre-stressed concrete bridges in Czech Republic

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Workshop 2003

ISBN

80-01-02708-2

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

694-695

Název nakladatele

ČVUT

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

10. 2. 2003

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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