Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces
To investigate the influence of Coriolis force on vibration characteristics of mistuned bladed disk, a bladed disk with 22 blades is employed and the effects of different rotational speeds and excitation engine orders on the maximum forced response are discussed considering the effects of Coriolis f...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/4656032 |
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| _version_ | 1832556355973545984 |
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| author | Xuanen Kan Bo Zhao |
| author_facet | Xuanen Kan Bo Zhao |
| author_sort | Xuanen Kan |
| collection | DOAJ |
| description | To investigate the influence of Coriolis force on vibration characteristics of mistuned bladed disk, a bladed disk with 22 blades is employed and the effects of different rotational speeds and excitation engine orders on the maximum forced response are discussed considering the effects of Coriolis forces. The results show that if there are frequency veering regions, the largest split of double natural frequencies of each modal family considering the effects of Coriolis forces appears at frequency veering region. In addition, the amplitude magnification factor considering the Coriolis effects is increased by 1.02% compared to the system without considering the Coriolis effects as the rotating speed is 3000 rpm, while the amplitude magnification factor is increased by 2.76% as the rotating speed is 10000 rpm. The results indicate that the amplitude magnification factor may be moderately enhanced with the increasing of rotating speed. Moreover, the position of the maximum forced response of bladed disk may shift from one blade to another with the increasing of the rotational speed, when the effects of Coriolis forces are considered. |
| format | Article |
| id | doaj-art-b76f593dc0544c7895c0f0657fbe6fd9 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b76f593dc0544c7895c0f0657fbe6fd92025-02-03T05:45:43ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/46560324656032Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis ForcesXuanen Kan0Bo Zhao1State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, ChinaTo investigate the influence of Coriolis force on vibration characteristics of mistuned bladed disk, a bladed disk with 22 blades is employed and the effects of different rotational speeds and excitation engine orders on the maximum forced response are discussed considering the effects of Coriolis forces. The results show that if there are frequency veering regions, the largest split of double natural frequencies of each modal family considering the effects of Coriolis forces appears at frequency veering region. In addition, the amplitude magnification factor considering the Coriolis effects is increased by 1.02% compared to the system without considering the Coriolis effects as the rotating speed is 3000 rpm, while the amplitude magnification factor is increased by 2.76% as the rotating speed is 10000 rpm. The results indicate that the amplitude magnification factor may be moderately enhanced with the increasing of rotating speed. Moreover, the position of the maximum forced response of bladed disk may shift from one blade to another with the increasing of the rotational speed, when the effects of Coriolis forces are considered.http://dx.doi.org/10.1155/2016/4656032 |
| spellingShingle | Xuanen Kan Bo Zhao Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces Shock and Vibration |
| title | Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces |
| title_full | Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces |
| title_fullStr | Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces |
| title_full_unstemmed | Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces |
| title_short | Vibration Characteristics of a Mistuned Bladed Disk considering the Effect of Coriolis Forces |
| title_sort | vibration characteristics of a mistuned bladed disk considering the effect of coriolis forces |
| url | http://dx.doi.org/10.1155/2016/4656032 |
| work_keys_str_mv | AT xuanenkan vibrationcharacteristicsofamistunedbladeddiskconsideringtheeffectofcoriolisforces AT bozhao vibrationcharacteristicsofamistunedbladeddiskconsideringtheeffectofcoriolisforces |