Aiming at the operating characteristics of light vehicle transmission
a vibration and noise testing of the transmission on neutral gear
four forward gear and one reverse gear is carried out.The measured signals are analyzed in the time domain and the spectral frequency domain.The results have some significance for understanding the characteristic of the vibration and noise of the transmission and in quality evaluation of the gearbox based on the vibration and noise signals.And for the optimization design of a transmission structural dynamics by the purpose of reducing vibration and noise
the basic data and analytical methods are prepared.