On the Forced Response of Harmonically and Partially Mistuned Bladed Disks. Part I: Harmonic Mistuning
This series of two papers focuses on the determination and clarification of the characteristics of the forced response of bladed disks that exhibit a mistuning pattern that is either harmonic or partial. Harmonic mistuning refers to single wavelength variations in structural properties along the dis...
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| Format: | Article |
| Language: | English |
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Wiley
2000-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X0000004X |
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| _version_ | 1832555826016944128 |
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| author | Marc P. Mignolet Wei Hu Ioan Jadic |
| author_facet | Marc P. Mignolet Wei Hu Ioan Jadic |
| author_sort | Marc P. Mignolet |
| collection | DOAJ |
| description | This series of two papers focuses on the determination and clarification of the characteristics of the forced response of bladed disks that exhibit a mistuning pattern that is either harmonic or partial. Harmonic mistuning refers to single wavelength variations in structural properties along the disk while partial mistuning is associated with blade characteristics that are random in a specific sector and tuned elsewhere. The results of this analysis demonstrate that many features of the response of these simple systems match not only qualitatively but also quantitatively their counterparts on randomly mistuned bladed disks. Relying on these similarities, simple and reliable approximations of the localization factor and of the mean response are easily derived that exemplify the usefulness of harmonic and partial mistuning patterns. Finally, it is demonstrated both theoretically and by comparison with simulation results that the maximum amplitude of response of a disk closely follows a Weibull-type distribution in all coupling situations, from very weak to very strong. |
| format | Article |
| id | doaj-art-f9f9399b9834426584d23cfaf8a561c6 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 2000-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-f9f9399b9834426584d23cfaf8a561c62025-02-03T05:47:07ZengWileyInternational Journal of Rotating Machinery1023-621X2000-01-0161294110.1155/S1023621X0000004XOn the Forced Response of Harmonically and Partially Mistuned Bladed Disks. Part I: Harmonic MistuningMarc P. Mignolet0Wei Hu1Ioan Jadic2Department of Mechanical and Aerospace Engineering, Arizona State University, Tempe, AZ 85287-6106, USADepartment of Mechanical and Aerospace Engineering, Arizona State University, Tempe, AZ 85287-6106, USARaytheon Aircraft Company, P.O. Box 85, Wichita, KS 67201-0085, USAThis series of two papers focuses on the determination and clarification of the characteristics of the forced response of bladed disks that exhibit a mistuning pattern that is either harmonic or partial. Harmonic mistuning refers to single wavelength variations in structural properties along the disk while partial mistuning is associated with blade characteristics that are random in a specific sector and tuned elsewhere. The results of this analysis demonstrate that many features of the response of these simple systems match not only qualitatively but also quantitatively their counterparts on randomly mistuned bladed disks. Relying on these similarities, simple and reliable approximations of the localization factor and of the mean response are easily derived that exemplify the usefulness of harmonic and partial mistuning patterns. Finally, it is demonstrated both theoretically and by comparison with simulation results that the maximum amplitude of response of a disk closely follows a Weibull-type distribution in all coupling situations, from very weak to very strong.http://dx.doi.org/10.1155/S1023621X0000004XBladed disksBlade vibrationMistuningLocalization phenomenonMaximum response. |
| spellingShingle | Marc P. Mignolet Wei Hu Ioan Jadic On the Forced Response of Harmonically and Partially Mistuned Bladed Disks. Part I: Harmonic Mistuning International Journal of Rotating Machinery Bladed disks Blade vibration Mistuning Localization phenomenon Maximum response. |
| title | On the Forced Response of Harmonically and Partially
Mistuned Bladed Disks. Part I: Harmonic Mistuning |
| title_full | On the Forced Response of Harmonically and Partially
Mistuned Bladed Disks. Part I: Harmonic Mistuning |
| title_fullStr | On the Forced Response of Harmonically and Partially
Mistuned Bladed Disks. Part I: Harmonic Mistuning |
| title_full_unstemmed | On the Forced Response of Harmonically and Partially
Mistuned Bladed Disks. Part I: Harmonic Mistuning |
| title_short | On the Forced Response of Harmonically and Partially
Mistuned Bladed Disks. Part I: Harmonic Mistuning |
| title_sort | on the forced response of harmonically and partially mistuned bladed disks part i harmonic mistuning |
| topic | Bladed disks Blade vibration Mistuning Localization phenomenon Maximum response. |
| url | http://dx.doi.org/10.1155/S1023621X0000004X |
| work_keys_str_mv | AT marcpmignolet ontheforcedresponseofharmonicallyandpartiallymistunedbladeddiskspartiharmonicmistuning AT weihu ontheforcedresponseofharmonicallyandpartiallymistunedbladeddiskspartiharmonicmistuning AT ioanjadic ontheforcedresponseofharmonicallyandpartiallymistunedbladeddiskspartiharmonicmistuning |