Detail publikace

The inverse vibration problem for fixed beam submerged in fluid

HAVLÁSEK, M. HABÁN, V. HUDEC, M. POCHYLÝ, F.

Originální název

The inverse vibration problem for fixed beam submerged in fluid

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Description of dynamic behaviour of the structures is based on the mass, damping and stiffness matrices. Unfortunately, this description is inapplicable in case of the fluidstructure interaction (FSI), because the matrices of system, which consists of the structure and ambient fluid, are generally not known. The matrices of system, describing the FSI, can be determined by solution of inverse vibration problem, which is an approach employing the spectral matrix and modal matrices of analysed system. The eigenvalues for creation of the spectral matrix are determined based on experimental measurement. The results of experiment can be verified by numerical simulation. The modal matrices of structure submerged in fluid can be given by experiment, which is not simple in FSI problem, or by acoustic modal analysis. Third approach for determination of the modal matrices works with the assumption, that the eigenvectors of structure are not influenced by the fluid and are identical to the eigenvectors of structure without the ambient fluid. This assumption is generally correct for majority of FSI problems. Described method is demonstrated on determination of the matrices of dynamic systems of the fixed beam submerged in water.

Klíčová slova

vibration, fixed beam, fluid

Autoři

HAVLÁSEK, M.; HABÁN, V.; HUDEC, M.; POCHYLÝ, F.

Vydáno

20. 12. 2019

ISSN

1755-1315

Periodikum

IOP Conference Series: Earth and Environmental Science

Ročník

405

Číslo

2019

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

6

Strany počet

6

BibTex

@inproceedings{BUT161146,
  author="Michal {Havlásek} and Vladimír {Habán} and Martin {Hudec} and František {Pochylý}",
  title="The inverse vibration problem for fixed beam
submerged in fluid",
  booktitle="IOP Conference Series: Earth and Environmental Science",
  year="2019",
  journal="IOP Conference Series: Earth and Environmental Science",
  volume="405",
  number="2019",
  pages="1--6",
  doi="10.1088/1755-1315/405/1/012018",
  issn="1755-1315"
}