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

Steven M. Mankevich, Stephen 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
ISBN (Print)9780791843888
DOIs
StatePublished - Jan 1 2010
Event2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
Duration: Nov 13 2009Nov 19 2009

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume15

Other

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

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Alternate approach of using spectral decomposition for the identification of structural resonant regions'. Together they form a unique fingerprint.

  • Cite this

    Mankevich, S. M., & Hambric, S. (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 (pp. 559-566). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 15). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2009-11447