Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox
The planetary gear sets find application in the final stages of the helicopter transmission system. Unlike the single axis gear, the planetary gears have complex structural arrangement and unique operational characteristics which makes diagnosis of incipient fault much more challenging with planetar...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Shahid Chamran University of Ahvaz
2023-10-01
|
| Series: | Journal of Applied and Computational Mechanics |
| Subjects: | |
| Online Access: | https://jacm.scu.ac.ir/article_18312_5ede58ad025c779423758fa050421f45.pdf |
| _version_ | 1797754420306378752 |
|---|---|
| author | Adebayo A. Ogundare Sunday J. Ojolo Adekunle Adelaja David Mba Linghao Zhou Xiaochuan Li |
| author_facet | Adebayo A. Ogundare Sunday J. Ojolo Adekunle Adelaja David Mba Linghao Zhou Xiaochuan Li |
| author_sort | Adebayo A. Ogundare |
| collection | DOAJ |
| description | The planetary gear sets find application in the final stages of the helicopter transmission system. Unlike the single axis gear, the planetary gears have complex structural arrangement and unique operational characteristics which makes diagnosis of incipient fault much more challenging with planetary gears compared to the single axis gear. This study provides a background for effective planetary bearing fault analysis in an SA330 Super-Puma Helicopter Main gearbox by studying the characteristic of the planetary stage and investigating some prominent frequency components which are vital to fault feature extraction. Vibration data of healthy and faulty conditions at varying load regimes from a seeded fault experiment were captured. The analysis of the vibration transmission paths and the signal amplitude in the time and frequency domain provide the basis for the determination of the best signal quality. Eight transmission paths affecting the signal energy were established however, the shortest path to the radial direction of the faulty bearing assures better signal gain. The gear mesh frequencies and harmonics of the planetary stages are suppressed by the high amplitude frequencies of the forward, aft and bevel reduction gears. The impulsive carrier frequency at high speed has a strong correlation with gear-related frequencies. Though the fault frequencies can be traced in some instances, it is mostly dominated in the spectrum because of the gear-related frequencies and amplitude modulation of the planetary stages. This work enhances the planetary bearing fault extraction. |
| first_indexed | 2024-03-12T17:33:16Z |
| format | Article |
| id | doaj.art-15372f2a03bf47cf9ebc117c233bde17 |
| institution | Directory Open Access Journal |
| issn | 2383-4536 |
| language | English |
| last_indexed | 2024-03-12T17:33:16Z |
| publishDate | 2023-10-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | Journal of Applied and Computational Mechanics |
| spelling | doaj.art-15372f2a03bf47cf9ebc117c233bde172023-08-04T15:44:39ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362023-10-01941093110610.22055/jacm.2023.43103.402818312Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main GearboxAdebayo A. Ogundare0Sunday J. Ojolo1Adekunle Adelaja2David Mba3Linghao Zhou4Xiaochuan Li5Department of Mechanical Engineering, University of Lagos, Akoka, Lagos, NigeriaDepartment of Mechanical Engineering, University of Lagos, Akoka, Lagos, NigeriaDepartment of Mechanical Engineering, University of Lagos, Akoka, Lagos, NigeriaResearch, Knowledge Exchange and Enterprise, University of the Arts London, London, UKMIR Section, NDE Group, MIR Section, NDE Group, TWI Limited, London, UKSchool of Electrical Engineering and Automation, Hefei University of Technology, Hefei, ChinaThe planetary gear sets find application in the final stages of the helicopter transmission system. Unlike the single axis gear, the planetary gears have complex structural arrangement and unique operational characteristics which makes diagnosis of incipient fault much more challenging with planetary gears compared to the single axis gear. This study provides a background for effective planetary bearing fault analysis in an SA330 Super-Puma Helicopter Main gearbox by studying the characteristic of the planetary stage and investigating some prominent frequency components which are vital to fault feature extraction. Vibration data of healthy and faulty conditions at varying load regimes from a seeded fault experiment were captured. The analysis of the vibration transmission paths and the signal amplitude in the time and frequency domain provide the basis for the determination of the best signal quality. Eight transmission paths affecting the signal energy were established however, the shortest path to the radial direction of the faulty bearing assures better signal gain. The gear mesh frequencies and harmonics of the planetary stages are suppressed by the high amplitude frequencies of the forward, aft and bevel reduction gears. The impulsive carrier frequency at high speed has a strong correlation with gear-related frequencies. Though the fault frequencies can be traced in some instances, it is mostly dominated in the spectrum because of the gear-related frequencies and amplitude modulation of the planetary stages. This work enhances the planetary bearing fault extraction.https://jacm.scu.ac.ir/article_18312_5ede58ad025c779423758fa050421f45.pdfplanetary bearingseeded faultvibrationfrequency, harmonics |
| spellingShingle | Adebayo A. Ogundare Sunday J. Ojolo Adekunle Adelaja David Mba Linghao Zhou Xiaochuan Li Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox Journal of Applied and Computational Mechanics planetary bearing seeded fault vibration frequency, harmonics |
| title | Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox |
| title_full | Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox |
| title_fullStr | Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox |
| title_full_unstemmed | Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox |
| title_short | Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox |
| title_sort | study of the vibration characteristics of sa 330 helicopter planetary main gearbox |
| topic | planetary bearing seeded fault vibration frequency, harmonics |
| url | https://jacm.scu.ac.ir/article_18312_5ede58ad025c779423758fa050421f45.pdf |
| work_keys_str_mv | AT adebayoaogundare studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox AT sundayjojolo studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox AT adekunleadelaja studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox AT davidmba studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox AT linghaozhou studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox AT xiaochuanli studyofthevibrationcharacteristicsofsa330helicopterplanetarymaingearbox |