Publication detail

Modal properties study for damage identification of dynamically loaded structures

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"
}