Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads
The results of modal analysis of the turbine blade were presented. The turbine blade during the operation of the engine is subjected to complex thermomechanical loads induced by centrifugal forces of the rotating blade and a nonuniform thermal field. These loads have a great influence on the natural...
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| Veröffentlicht in: | Проблемы прочности |
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| Datum: | 2016 |
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| Format: | Artikel |
| Sprache: | English |
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Інститут проблем міцності ім. Г.С. Писаренко НАН України
2016
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/173501 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads / L. Witek, F. Stachowicz // Проблемы прочности. — 2016. — № 4. — С. 6-13. — Бібліогр.: 21 назв. — англ. |
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Witek, L. Stachowicz, F. 2020-12-07T20:04:57Z 2020-12-07T20:04:57Z 2016 Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads / L. Witek, F. Stachowicz // Проблемы прочности. — 2016. — № 4. — С. 6-13. — Бібліогр.: 21 назв. — англ. 0556-171X https://nasplib.isofts.kiev.ua/handle/123456789/173501 539.4 The results of modal analysis of the turbine blade were presented. The turbine blade during the operation of the engine is subjected to complex thermomechanical loads induced by centrifugal forces of the rotating blade and a nonuniform thermal field. These loads have a great influence on the natural frequencies of the blade. In the first section of the study, modal analysis of the blade was performed using the vibration system. As a result, the resonant frequencies of the real blade were obtained. In order to check the effect of the rotational engine speed and the thermal field on the natural frequencies of the blade, the finite element method was employed. At the first stage of computations static analysis was conducted for the blade subjected to mechanical and thermal loads. Then modal analysis was used to isolate the natural frequencies and vibration modes of the blade. In modal analysis the stress state from the first stage was considered as preliminary conditions. Several results of numerical calculations and experimental analysis were compared to detect the relative error of natural frequency estimates The research received funding from the People Programme (Marie Curie International Research Staff Exchange) of the European Union’s Seventh Framework Programme FP7/2007-2013/ under REA Grant PIRSES-GA-2013-610547. en Інститут проблем міцності ім. Г.С. Писаренко НАН України Проблемы прочности Научно-технический раздел Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads Модальный анализ лопатки турбины при сложных термомеханических нагрузках Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads |
| spellingShingle |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads Witek, L. Stachowicz, F. Научно-технический раздел |
| title_short |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads |
| title_full |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads |
| title_fullStr |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads |
| title_full_unstemmed |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads |
| title_sort |
modal analysis of the turbine blade at complex thermomechanical loads |
| author |
Witek, L. Stachowicz, F. |
| author_facet |
Witek, L. Stachowicz, F. |
| topic |
Научно-технический раздел |
| topic_facet |
Научно-технический раздел |
| publishDate |
2016 |
| language |
English |
| container_title |
Проблемы прочности |
| publisher |
Інститут проблем міцності ім. Г.С. Писаренко НАН України |
| format |
Article |
| title_alt |
Модальный анализ лопатки турбины при сложных термомеханических нагрузках |
| description |
The results of modal analysis of the turbine blade were presented. The turbine blade during the operation of the engine is subjected to complex thermomechanical loads induced by centrifugal forces of the rotating blade and a nonuniform thermal field. These loads have a great influence on the natural frequencies of the blade. In the first section of the study, modal analysis of the blade was performed using the vibration system. As a result, the resonant frequencies of the real blade were obtained. In order to check the effect of the rotational engine speed and the thermal field on the natural frequencies of the blade, the finite element method was employed. At the first stage of computations static analysis was conducted for the blade subjected to mechanical and thermal loads. Then modal analysis was used to isolate the natural frequencies and vibration modes of the blade. In modal analysis the stress state from the first stage was considered as preliminary conditions. Several results of numerical calculations and experimental analysis were compared to detect the relative error of natural frequency estimates
|
| issn |
0556-171X |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/173501 |
| citation_txt |
Modal Analysis of the Turbine Blade at Complex Thermomechanical Loads / L. Witek, F. Stachowicz // Проблемы прочности. — 2016. — № 4. — С. 6-13. — Бібліогр.: 21 назв. — англ. |
| work_keys_str_mv |
AT witekl modalanalysisoftheturbinebladeatcomplexthermomechanicalloads AT stachowiczf modalanalysisoftheturbinebladeatcomplexthermomechanicalloads AT witekl modalʹnyianalizlopatkiturbinyprisložnyhtermomehaničeskihnagruzkah AT stachowiczf modalʹnyianalizlopatkiturbinyprisložnyhtermomehaničeskihnagruzkah |
| first_indexed |
2025-12-07T18:36:59Z |
| last_indexed |
2025-12-07T18:36:59Z |
| _version_ |
1850875701292433408 |