Detail publikačního výsledku

Parameter effecting the experimental determination of modal properties

ŘEHÁK, K.; KUČERA, P.; PROKOP, A.

Original Title

Parameter effecting the experimental determination of modal properties

English Title

Parameter effecting the experimental determination of modal properties

Type

Paper in proceedings (conference paper)

Original Abstract

The investigation of structure dynamic behavior can be done by finding modal properties, which are based on the relation of force and vibration response. The information about exact force value is in most application unknown, but the investigation can be done for unit magnitude of force. In case of using modal exciter, the force applied to structure is transferred by connection between modal exciter and structure. The stiffness of connection part can affect the dynamic behavior and change the modal properties, or response of investigated part, because of additional modal properties of connection part. This article is focused on the influence of two different rod stiffness during modal properties identification. The modal exciter is used to find potential critical frequency during decreasing frequency. The affect is evaluated on the surface normal velocity as well as acoustic pressure. The stiffness of rod significantly affects the dynamic response of structure and based on that can add frequency, when the emitted noise is high.

English abstract

The investigation of structure dynamic behavior can be done by finding modal properties, which are based on the relation of force and vibration response. The information about exact force value is in most application unknown, but the investigation can be done for unit magnitude of force. In case of using modal exciter, the force applied to structure is transferred by connection between modal exciter and structure. The stiffness of connection part can affect the dynamic behavior and change the modal properties, or response of investigated part, because of additional modal properties of connection part. This article is focused on the influence of two different rod stiffness during modal properties identification. The modal exciter is used to find potential critical frequency during decreasing frequency. The affect is evaluated on the surface normal velocity as well as acoustic pressure. The stiffness of rod significantly affects the dynamic response of structure and based on that can add frequency, when the emitted noise is high.

Keywords

vibration, modal exciter, experiment,acoustic.

Key words in English

vibration, modal exciter, experiment,acoustic.

Authors

ŘEHÁK, K.; KUČERA, P.; PROKOP, A.

RIV year

2019

Released

22.05.2018

Publisher

JVE Intenational

Location

Kaunas, Lithuania

Book

Vibroengineering PROCEDIA

ISBN

2345-0533

Periodical

Vibroengineering Procedia

Volume

18

Number

1

State

Republic of Lithuania

Pages from

96

Pages to

100

Pages count

5

URL

https://www.jvejournals.com/article/19946

Full text in the Digital Library

http://hdl.handle.net/11012/84196

BibTex

@inproceedings{BUT148086,
  author="Kamil {Řehák} and Pavel {Kučera} and Aleš {Prokop}",
  title="Parameter effecting the experimental determination of modal properties",
  booktitle="Vibroengineering PROCEDIA",
  year="2018",
  journal="Vibroengineering Procedia",
  volume="18",
  number="1",
  pages="96--100",
  publisher="JVE Intenational",
  address="Kaunas, Lithuania",
  doi="10.21595/vp.2018.19946",
  issn="2345-0533",
  url="https://www.jvejournals.com/article/19946"
}

Documents

VP-18-19946