The location of a concentrated mass on rectangular plates from measurements of natural vibrations

W. Ostachowicz, M. Krawczuk, M. Cartmell

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

This paper presents new results for the identification of the location of a concentrated mass on isotropic plates by means of a genetic algorithm search technique based on changes in natural frequencies. The location and size of the mass are determined by minimisation of an error function, which expresses the difference between calculated and measured natural frequencies. Simulation studies indicate that changes in natural frequencies allow the estimation of mass location and magnitude at high levels of accuracy and speed. The advantages and limitations of this technique are also discussed.
LanguageEnglish
Pages1419-1428
Number of pages10
JournalComputers and Structures
Volume80
Issue number16-17
DOIs
Publication statusPublished - 2002

Fingerprint

Rectangular Plate
Natural Frequency
Natural frequencies
Vibration
Error function
Express
Genetic algorithms
Genetic Algorithm
Simulation Study

Keywords

  • inverse problems
  • genetic algorithm
  • natural frequencies

Cite this

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The location of a concentrated mass on rectangular plates from measurements of natural vibrations. / Ostachowicz, W.; Krawczuk, M.; Cartmell, M.

In: Computers and Structures, Vol. 80, No. 16-17, 2002, p. 1419-1428.

Research output: Contribution to journalArticle

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AU - Krawczuk, M.

AU - Cartmell, M.

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AB - This paper presents new results for the identification of the location of a concentrated mass on isotropic plates by means of a genetic algorithm search technique based on changes in natural frequencies. The location and size of the mass are determined by minimisation of an error function, which expresses the difference between calculated and measured natural frequencies. Simulation studies indicate that changes in natural frequencies allow the estimation of mass location and magnitude at high levels of accuracy and speed. The advantages and limitations of this technique are also discussed.

KW - inverse problems

KW - genetic algorithm

KW - natural frequencies

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