Browse Publications Technical Papers 2005-01-1785

Measurement of Transmission Rattle Sensitivity and Calculation of Driveline Torsional Vibration for Gear Rattle Analysis 2005-01-1785

Gear rattle is generated basically due to the impacts of unloaded gear pairs in transmission. The rattle noise level is determined by two main factors, excitation level at transmission input shaft and rattle sensitivity of the transmission at that excitation level. In this work, (1) the transmission rattle sensitivity was measured and investigated (2) torsional vibration model of driveline system was developed to estimate the speed fluctuation at the transmission input shaft and to find some rattle improvement potential by tuning driveline components so that the speed fluctuation be minimized.


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