Modal Appropriation for Use with In-Operation Modal Analysis
Joint Authors
Abdelghani, M.
Inman, Daniel J.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-14
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We propose in this paper a numerical modal appropriation method for use with in-operation modal analysis (INOPMA).
The key idea is to realize that the correlation sequence of the system output is the sum of decaying sinusoids with a certain phase shift and therefore it may be considered as an impulse response.
The method is based on performing a numerical convolution of a single sine wave force with the system output correlation sequence.
The steps are then similar to the classical modal appropriation method, although the characteristic frequencies are different.
This approach is validated and compared to a subspace method on simulated data as well as on experimental data and it is shown that INOPMA outperforms the subspace method.
American Psychological Association (APA)
Abdelghani, M.& Inman, Daniel J.. 2015. Modal Appropriation for Use with In-Operation Modal Analysis. Shock and Vibration،Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1078191
Modern Language Association (MLA)
Abdelghani, M.& Inman, Daniel J.. Modal Appropriation for Use with In-Operation Modal Analysis. Shock and Vibration No. 2015 (2015), pp.1-5.
https://search.emarefa.net/detail/BIM-1078191
American Medical Association (AMA)
Abdelghani, M.& Inman, Daniel J.. Modal Appropriation for Use with In-Operation Modal Analysis. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-5.
https://search.emarefa.net/detail/BIM-1078191
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078191