Focusing on the vibration and noise of gear transmission

taking Masta software as the analysis platform

by simulating and computing the modification of main reduction gear of a transmission

the effect relations between change of modification parameters such as tip relief

barreling relief and crowning relief with characteristic of gear transmission is obtained.The optimum modification parameters are selected based on the study of the law of gear transmission error and max contact pressure.Noise test result shows that the squeal of the transmission is reduced effectively after gear modification.