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FRANTÍK, P. LEHKÝ, D. NOVÁK, D.
Original Title
Modal properties study for damage identification of dynamically loaded structures
Type
abstract
Language
English
Original Abstract
The paper is focused on one particular step of methodology for dynamic identification using artificial neural networks and stratified simulation of Monte Carlo type. 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. Two approaches for modal properties calculation are used - one of them is particularly suitable for nonlinear problems. Two structures are used for the study: A simple cantilever beam and real bridge Z24 tested in Switzerland.
Keywords
Damage, modeshapes, eigenfrequencies, identification
Authors
FRANTÍK, P.; LEHKÝ, D.; NOVÁK, D.
Released
10. 9. 2007
Location
Cape Town, South Africa
Pages from
703
Pages to
704
Pages count
2
BibTex
@misc{BUT60627, author="Petr {Frantík} and David {Lehký} and Drahomír {Novák}", title="Modal properties study for damage identification of dynamically loaded structures", year="2007", pages="703--704", address="Cape Town, South Africa", note="abstract" }