Abstract
This paper deals with the gear rattle of helical gear system,which generates in automotive.By introducing the mesh stiffness variation and tooth profile error into the equation of motion of one pair of helical gear system,and by considering the real meshing of tooth,the influences of the mesh stiffness variation,tooth profile error,and torque variation on the rattle are studied by the numerical analysis which is called shooting method.As a result,the followings were made clear.(1) Because of the interaction of the torque variation,the tooth profile error,and the mesh stiffness variation,large amplitude vibrations occur in low frequency region.Those are chaos.(2) The higher-harmonic resonances also generate because of this interaction.Those vibration amplitudes are larger than those in the case without tooth profile error.(3)Because of the tooth profile error and the torque variation,the real messing of helical gears in the rattle becomes complicated.
