Detail publikačního výsledku

COMPARISON OF TWO METHODS OF MODAL ANALYSIS AND AGREEMENT WITH MODEL

KREJČÍ, J.; BENEŠ, P.

Original Title

COMPARISON OF TWO METHODS OF MODAL ANALYSIS AND AGREEMENT WITH MODEL

English Title

COMPARISON OF TWO METHODS OF MODAL ANALYSIS AND AGREEMENT WITH MODEL

Type

Abstract

Original Abstract

This article deals with modal analysis and compares two methods of determining a modal model of a simple free beam. One method uses roving excitation by modal hammer and static sensing by accelerometer. Second method applies static excitation by vibration test system and roving sensing by 2D laser interferometer. Both methods are compared by their results, advantages and disadvantages, also agreement of measurement, calculated model and simulated model by finite element method is performed. Difference of the Eigen-frequencies is lower than 4 %. Finally, achieved repeatability of both methods with different operators is lower than 0.5 %.

English abstract

This article deals with modal analysis and compares two methods of determining a modal model of a simple free beam. One method uses roving excitation by modal hammer and static sensing by accelerometer. Second method applies static excitation by vibration test system and roving sensing by 2D laser interferometer. Both methods are compared by their results, advantages and disadvantages, also agreement of measurement, calculated model and simulated model by finite element method is performed. Difference of the Eigen-frequencies is lower than 4 %. Finally, achieved repeatability of both methods with different operators is lower than 0.5 %.

Keywords

Modal analysis, free beam, 2D interferometer, COMSOL, ModalVIEW

Key words in English

Modal analysis, free beam, 2D interferometer, COMSOL, ModalVIEW

Authors

KREJČÍ, J.; BENEŠ, P.

Released

09.04.2019

Location

Brno

ISBN

978-80-214-5733-1

Book

ERIN 2019

Edition

1

Pages from

23

Pages to

23

Pages count

1

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@misc{BUT160694,
  author="Jakub {Krejčí} and Petr {Beneš}",
  title="COMPARISON OF TWO METHODS OF MODAL ANALYSIS AND AGREEMENT WITH MODEL",
  booktitle="ERIN 2019",
  year="2019",
  series="1",
  edition="1",
  pages="23--23",
  address="Brno",
  isbn="978-80-214-5733-1",
  note="Abstract"
}