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Component Inertial Effects on Transmission Design
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English
Abstract
The placement of components within a manual transmission influences gear rattle and shiftability. This is due to changes in the effective inertia of the transmission. Gear rattle can be reduced and shiftability can be improved by positioning components to optimize the transmission's effective inertia.
In this report, the effect of inertia on shiftability is discussed. The causes and types of gear rattle are then discussed. A theory is developed for the threshold of rattle within a transmission. A transmission arrangement is then presented that reduces gear rattle and improves shiftability by optimizing the placement of components by taking into account component inertial effects.
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Citation
Seaman, R., Johnson, C., and Hamilton, R., "Component Inertial Effects on Transmission Design," SAE Technical Paper 841686, 1984, https://doi.org/10.4271/841686.Also In
References
- Frantz R. A. “Cam-Driven Member Assembly-Improvements in Clutch Neutral Rattle Performance.” SAE Technical Paper Series, No. 841195 1984
- Sakai T. Doi Y. Yamamoto K. Ogasawara T. Narita M. “Theoretical and Experimental Analysis of Rattling Noise of Automotive Gearbox.” SAE Technical Paper Series, No. 810733 1981
- Wilson W. Ker “Practical Solution of Torsional Vibration Problems” 2 London Chapman & Halt 1963
- Socin R. J. Walters L. Kirk “Manual Transmission Synchronizers.” SAE Technical Paper Series, No. 680008 1968