Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results
Modal parameter extraction of high speed shafts is of critical importance in mechanical design of turbo-pumps. Due to the complex geometry and peripheral components of turbo-pumps, difficulties can arise in determination of modal parameters. In this study, modal properties of a turbo-pump shaft, was...
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2008-08-01
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doaj-50662214aff54825a8e532e33e2bdc6c2020-11-25T00:08:44ZengIran University of Science & TechnologyInternational Journal of Industrial Engineering and Production Research2008-48892345-363X2008-08-01197143149Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the resultsM.H. Sadegh0S. Jafari1B. Nasseroleslami2 Modal parameter extraction of high speed shafts is of critical importance in mechanical design of turbo-pumps. Due to the complex geometry and peripheral components of turbo-pumps, difficulties can arise in determination of modal parameters. In this study, modal properties of a turbo-pump shaft, was studied by experimental modal analysis, and using different excitation techniques. An innovative suspending method is proposed to reduce noise-to-signal ratio, resulting from classic suspensions. Comparison of the experimental results obtained from the proposed suspension method and the traditional ones shows that the proposed approach was a promising method, when classic methods fall short of expectations in analysis of complex structures. To validate the experimental results, numerical solution was carried out using simplified geometric modeling combined with the Finite Element Method. The simplified modeling approach can be considered as a reliable theoretical method for numerical modal analysis of similar structures. Comparison of experimental and numerical results shows that there is a good conformity between the results of two approaches .http://ijiepr.iust.ac.ir/browse.php?a_code=A-10-1-89&slc_lang=en&sid=1Turbo-pump shaft experimental modal analysis numerical modal analysis suspension techniques |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M.H. Sadegh S. Jafari B. Nasseroleslami |
spellingShingle |
M.H. Sadegh S. Jafari B. Nasseroleslami Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results International Journal of Industrial Engineering and Production Research Turbo-pump shaft experimental modal analysis numerical modal analysis suspension techniques |
author_facet |
M.H. Sadegh S. Jafari B. Nasseroleslami |
author_sort |
M.H. Sadegh |
title |
Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results |
title_short |
Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results |
title_full |
Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results |
title_fullStr |
Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results |
title_full_unstemmed |
Modal analysis of a turbo-pump shaft: An innovative suspending method to improve the results |
title_sort |
modal analysis of a turbo-pump shaft: an innovative suspending method to improve the results |
publisher |
Iran University of Science & Technology |
series |
International Journal of Industrial Engineering and Production Research |
issn |
2008-4889 2345-363X |
publishDate |
2008-08-01 |
description |
Modal parameter extraction of high speed shafts is of critical importance in mechanical design of turbo-pumps. Due to the complex geometry and peripheral components of turbo-pumps, difficulties can arise in determination of modal parameters. In this study, modal properties of a turbo-pump shaft, was studied by experimental modal analysis, and using different excitation techniques. An innovative suspending method is proposed to reduce noise-to-signal ratio, resulting from classic suspensions. Comparison of the experimental results obtained from the proposed suspension method and the traditional ones shows that the proposed approach was a promising method, when classic methods fall short of expectations in analysis of complex structures. To validate the experimental results, numerical solution was carried out using simplified geometric modeling combined with the Finite Element Method. The simplified modeling approach can be considered as a reliable theoretical method for numerical modal analysis of similar structures. Comparison of experimental and numerical results shows that there is a good conformity between the results of two approaches . |
topic |
Turbo-pump shaft experimental modal analysis numerical modal analysis suspension techniques |
url |
http://ijiepr.iust.ac.ir/browse.php?a_code=A-10-1-89&slc_lang=en&sid=1 |
work_keys_str_mv |
AT mhsadegh modalanalysisofaturbopumpshaftaninnovativesuspendingmethodtoimprovetheresults AT sjafari modalanalysisofaturbopumpshaftaninnovativesuspendingmethodtoimprovetheresults AT bnasseroleslami modalanalysisofaturbopumpshaftaninnovativesuspendingmethodtoimprovetheresults |
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1725414833785929728 |