Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects
This paper aims to investigate nonlinear vibration characteristics of rotor system considering cogging and harmonic effects. Firstly, relative permeance with eccentric was established and then corrected by correction factor caused by the cogging effect. Based on the new formula of relative permeance...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6685588 |
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| _version_ | 1832550861444743168 |
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| author | Shanle Li Feng Liu Hongyan Wang Haijun Song Kuilong Yu |
| author_facet | Shanle Li Feng Liu Hongyan Wang Haijun Song Kuilong Yu |
| author_sort | Shanle Li |
| collection | DOAJ |
| description | This paper aims to investigate nonlinear vibration characteristics of rotor system considering cogging and harmonic effects. Firstly, relative permeance with eccentric was established and then corrected by correction factor caused by the cogging effect. Based on the new formula of relative permeance, the expression of unbalanced magnetic force was obtained, and the coefficient of cogging effect was defined. Motion equations of rotor system were established, and Runge–Kutta method was used to solve the equations. Results showed that errors between finite and analytical results were smaller considering cogging and harmonic effects. When the harmonics were taken into consideration, the vibration of rotor increases sharply. When the cogging and harmonics were taken into consideration simultaneously, the vibration of rotor decreased instead, which means that stator slots have the effect of reducing vibration in rotor system. Rotor vibration was axis symmetry with static eccentricity rather than central symmetry with no eccentricity, and double, four times, and six times supply frequency always existed in the components of main frequency with eccentric. |
| format | Article |
| id | doaj-art-c30d6e6b861742348f4fe76da9304bb0 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c30d6e6b861742348f4fe76da9304bb02025-02-03T06:05:36ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66855886685588Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic EffectsShanle Li0Feng Liu1Hongyan Wang2Haijun Song3Kuilong Yu4Department of Vehicle Engineering, Army Academy of Armored Forces, Beijing, ChinaDepartment of Vehicle Engineering, Army Academy of Armored Forces, Beijing, ChinaDepartment of Vehicle Engineering, Army Academy of Armored Forces, Beijing, ChinaDepartment of Vehicle Engineering, Army Academy of Armored Forces, Beijing, ChinaDepartment of Vehicle Engineering, Army Academy of Armored Forces, Beijing, ChinaThis paper aims to investigate nonlinear vibration characteristics of rotor system considering cogging and harmonic effects. Firstly, relative permeance with eccentric was established and then corrected by correction factor caused by the cogging effect. Based on the new formula of relative permeance, the expression of unbalanced magnetic force was obtained, and the coefficient of cogging effect was defined. Motion equations of rotor system were established, and Runge–Kutta method was used to solve the equations. Results showed that errors between finite and analytical results were smaller considering cogging and harmonic effects. When the harmonics were taken into consideration, the vibration of rotor increases sharply. When the cogging and harmonics were taken into consideration simultaneously, the vibration of rotor decreased instead, which means that stator slots have the effect of reducing vibration in rotor system. Rotor vibration was axis symmetry with static eccentricity rather than central symmetry with no eccentricity, and double, four times, and six times supply frequency always existed in the components of main frequency with eccentric.http://dx.doi.org/10.1155/2021/6685588 |
| spellingShingle | Shanle Li Feng Liu Hongyan Wang Haijun Song Kuilong Yu Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects Shock and Vibration |
| title | Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects |
| title_full | Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects |
| title_fullStr | Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects |
| title_full_unstemmed | Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects |
| title_short | Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects |
| title_sort | nonlinear vibration analysis of rotor considering cogging and harmonic effects |
| url | http://dx.doi.org/10.1155/2021/6685588 |
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