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Asymmetric Gear Noise Sidebands and Application to Planetary Gear Noise Reduction
Technical Paper
2005-01-2462
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Asymmetric sidebands of gear noise are frequently observed with a planetary gear set, and are different from typical sidebands that are symmetrical around the gear mesh order (or mesh frequency). The asymmetric sidebands are found to be caused by phase differences between the different mesh points. The sidebands' locations can be calculated with knowledge of the gear set parameters. In this paper, a numerical simulation is used to predict the sidebands in a 4-speed automatic transmission. An experimental test verifies the theoretical prediction. Finally an application is described to show how to use the theory for gear noise reduction on the planetary gear set.
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Authors
Citation
Yu, S. and Kaatz, S., "Asymmetric Gear Noise Sidebands and Application to Planetary Gear Noise Reduction," SAE Technical Paper 2005-01-2462, 2005, https://doi.org/10.4271/2005-01-2462.Also In
References
- Randall, R. B. “A New Method of Modeling Gear Fault” Journal of Mechanical Design 104 April 1982
- McFadden, P.D. Smith, J.D. “An Explanation for the Asymmetry of the Modulation Sidebands about the Tooth Meshing Frequency in Epicyclic Gear Vibration” Proc Instn Mech Engrs 199 C1 1985
- Seager D. L. “Conditions for the Neutralization of Excitation by the Teeth in Epicyclic Gearing” J. Mechanical Engineering Science 17 5 1975
- Palmer, W.E. “Noise Control in Planetary Transmissions” SAE 770561 1977