Alternate approach of using spectral decomposition for the identification of structural resonant regions

Steven M. Mankevich, Stephen A. Hambric

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper investigates a method called spectral decomposition and is presented as an alternate approach to determine the system frequency response functions of turbomachinery. Spectral decomposition is a method that is based on the principals established by the acoustic similarity laws to determine the spectral characteristics of a source function. The decomposition process was originally implemented to investigate the isolated acoustic source spectra of fans specifically excluding structureborne sources; however, this paper focuses on using the method for the purpose of characterizing the system response functions associated with rotating machinery. During this investigation, static impact test data was acquired on a large industrial motor to characterize the frequency response functions of the motor/compressor system. Spectral decomposition results are then calculated using the motor operational structureborne data and compared to the results of the static impact test. This paper shows that the spectral decomposition is a viable option to use in place of the static impact test results where qualitative frequency response functions are desired.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages559-566
Number of pages8
Volume15
ISBN (Print)9780791843888
DOIs
StatePublished - 2010
Event2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
Duration: Nov 13 2009Nov 19 2009

Other

Other2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009
CountryUnited States
CityLake Buena Vista, FL
Period11/13/0911/19/09

Fingerprint

Decomposition
Frequency response
Acoustics
Rotating machinery
Turbomachinery
Fans
Compressors

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Mankevich, S. M., & Hambric, S. A. (2010). Alternate approach of using spectral decomposition for the identification of structural resonant regions. In Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009 (Vol. 15, pp. 559-566). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2009-11447
Mankevich, Steven M. ; Hambric, Stephen A. / Alternate approach of using spectral decomposition for the identification of structural resonant regions. Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009. Vol. 15 American Society of Mechanical Engineers (ASME), 2010. pp. 559-566
@inproceedings{c18a499e35aa41b5a473ce80944b1956,
title = "Alternate approach of using spectral decomposition for the identification of structural resonant regions",
abstract = "This paper investigates a method called spectral decomposition and is presented as an alternate approach to determine the system frequency response functions of turbomachinery. Spectral decomposition is a method that is based on the principals established by the acoustic similarity laws to determine the spectral characteristics of a source function. The decomposition process was originally implemented to investigate the isolated acoustic source spectra of fans specifically excluding structureborne sources; however, this paper focuses on using the method for the purpose of characterizing the system response functions associated with rotating machinery. During this investigation, static impact test data was acquired on a large industrial motor to characterize the frequency response functions of the motor/compressor system. Spectral decomposition results are then calculated using the motor operational structureborne data and compared to the results of the static impact test. This paper shows that the spectral decomposition is a viable option to use in place of the static impact test results where qualitative frequency response functions are desired.",
author = "Mankevich, {Steven M.} and Hambric, {Stephen A.}",
year = "2010",
doi = "10.1115/IMECE2009-11447",
language = "English (US)",
isbn = "9780791843888",
volume = "15",
pages = "559--566",
booktitle = "Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009",
publisher = "American Society of Mechanical Engineers (ASME)",

}

Mankevich, SM & Hambric, SA 2010, Alternate approach of using spectral decomposition for the identification of structural resonant regions. in Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009. vol. 15, American Society of Mechanical Engineers (ASME), pp. 559-566, 2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009, Lake Buena Vista, FL, United States, 11/13/09. https://doi.org/10.1115/IMECE2009-11447

Alternate approach of using spectral decomposition for the identification of structural resonant regions. / Mankevich, Steven M.; Hambric, Stephen A.

Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009. Vol. 15 American Society of Mechanical Engineers (ASME), 2010. p. 559-566.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Alternate approach of using spectral decomposition for the identification of structural resonant regions

AU - Mankevich, Steven M.

AU - Hambric, Stephen A.

PY - 2010

Y1 - 2010

N2 - This paper investigates a method called spectral decomposition and is presented as an alternate approach to determine the system frequency response functions of turbomachinery. Spectral decomposition is a method that is based on the principals established by the acoustic similarity laws to determine the spectral characteristics of a source function. The decomposition process was originally implemented to investigate the isolated acoustic source spectra of fans specifically excluding structureborne sources; however, this paper focuses on using the method for the purpose of characterizing the system response functions associated with rotating machinery. During this investigation, static impact test data was acquired on a large industrial motor to characterize the frequency response functions of the motor/compressor system. Spectral decomposition results are then calculated using the motor operational structureborne data and compared to the results of the static impact test. This paper shows that the spectral decomposition is a viable option to use in place of the static impact test results where qualitative frequency response functions are desired.

AB - This paper investigates a method called spectral decomposition and is presented as an alternate approach to determine the system frequency response functions of turbomachinery. Spectral decomposition is a method that is based on the principals established by the acoustic similarity laws to determine the spectral characteristics of a source function. The decomposition process was originally implemented to investigate the isolated acoustic source spectra of fans specifically excluding structureborne sources; however, this paper focuses on using the method for the purpose of characterizing the system response functions associated with rotating machinery. During this investigation, static impact test data was acquired on a large industrial motor to characterize the frequency response functions of the motor/compressor system. Spectral decomposition results are then calculated using the motor operational structureborne data and compared to the results of the static impact test. This paper shows that the spectral decomposition is a viable option to use in place of the static impact test results where qualitative frequency response functions are desired.

UR - http://www.scopus.com/inward/record.url?scp=77954293123&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954293123&partnerID=8YFLogxK

U2 - 10.1115/IMECE2009-11447

DO - 10.1115/IMECE2009-11447

M3 - Conference contribution

AN - SCOPUS:77954293123

SN - 9780791843888

VL - 15

SP - 559

EP - 566

BT - Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009

PB - American Society of Mechanical Engineers (ASME)

ER -

Mankevich SM, Hambric SA. Alternate approach of using spectral decomposition for the identification of structural resonant regions. In Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009. Vol. 15. American Society of Mechanical Engineers (ASME). 2010. p. 559-566 https://doi.org/10.1115/IMECE2009-11447