Publication detail

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

conference paper

Language

en

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.

Released

22.05.2018

Publisher

JVE Intenational

Location

Kaunas, Lithuania

ISBN

2345-0533

Periodical

Vibroengineering Procedia

Year of study

18

Number

1

State

LT

Pages from

96

Pages to

100

Pages count

5

URL

Full text in the Digital Library

Documents

BibTex


@inproceedings{BUT148086,
  author="Kamil {Řehák} and Pavel {Kučera} and Aleš {Prokop}",
  title="Parameter effecting the experimental determination of modal properties",
  annote="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.",
  address="JVE Intenational",
  booktitle="Vibroengineering PROCEDIA",
  chapter="148086",
  doi="10.21595/vp.2018.19946",
  howpublished="print",
  institution="JVE Intenational",
  number="1",
  year="2018",
  month="may",
  pages="96--100",
  publisher="JVE Intenational",
  type="conference paper"
}