000001660 001__ 1660
000001660 005__ 20141118153459.0
000001660 04107 $$acze
000001660 046__ $$k2007-05-14
000001660 100__ $$aLehký, D.
000001660 24500 $$aDAMAGE IDENTIFICATION OF DYNAMICALLY LOADED STRUCTURES: METHODOLOGY AND MODAL PROPERTIES STUDY

000001660 24630 $$n13$$pEngineering Mechanics 2007
000001660 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000001660 506__ $$arestricted
000001660 520__ $$2eng$$aThe paper is focused on damage identification of dynamically loaded structures using methods of soft computing including artificial intelligence. The damage and variability of material properties (stiffness) along the structure is studied. The identification method based on coupling of artificial neural networks and stochastic analysis of structure for preparation of appropriate training set is used. Sensitivity analysis of the input parameters is the integral part of the method. The proposed methodology is extended towards the dynamic response of structures when results of modal analysis are the input parameters (frequencies, mode shapes). As a particular step an influence of local decrease of stiffness on modal properties (eigenfrequencies and modeshapes) is studied. The role of the magnitude of damage is examined. The aim is determination of suitable initial parameters for consequent inverse analysis.

000001660 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001660 653__ $$a

000001660 7112_ $$aEngineering Mechanics 2007$$cSvratka (CZ)$$d2007-05-14 / 2007-05-17$$gEM2007
000001660 720__ $$aLehký, D.$$iFrantík, P.$$iNovák, D.
000001660 8560_ $$ffischerc@itam.cas.cz
000001660 8564_ $$s601315$$uhttps://invenio.itam.cas.cz/record/1660/files/075-Lehky-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000001660 962__ $$r1585
000001660 980__ $$aPAPER