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Gear whine noise reduction by transmission error and gear contact pattern optimization: Simulation and Testing Correlation John Deere India Pvt., Limited
- Format:
- Book
- Conference/Event
- Author/Creator:
- Lahoti, Soniya, author.
- Conference Name:
- Noise and Vibration Conference & Exhibition (2021-09-07 : Grand Rapids & Online, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- During testing a couple of gear pairs exhibited whine noise in a gearbox. The noise was present regardless of the load, observed throughout the operating speed range, and it was especially noticeable at certain points of the operating conditions. High fidelity simulation model was built to recreate the issue observed in testing and suggest possible ways reduce the gear whine. The Peak-to-Peak Transmission Error (PPTE), which is the main excitation for gear whine was evaluated throughout the operating conditions and it showed sudden rise in value at the same points as observed in testing. This was attributed to the fact that these gears act as both power consuming and supplying components which cause fluctuating moment on the gear mesh and thus the load sharing changes continuously causing variation in excitation throughout the operating load cycle. This excitation is a function of gear geometry and can be reduced by optimizing the geometry. After conducting several optimization iterations using the full factorial and genetic algorithm DOE, performed a comprehensive study on the effect of tolerances, micro-geometry specifications were developed that reduced the TE for almost all load conditions. An evaluation of Dynamic Transmission Error also showed an improvement. New parts were developed using the recommended geometry and tested for noise. Testing showed a huge improvement in Gear Whine (more than 6dB for most cases) throughout the operating load cycle. This whole activity helped in developing new predictive simulation workflows to resolve design issues analytically and effectively within a relatively short period of time
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-1103
- Access Restriction:
- Restricted for use by site license
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