歯車系の歯打ちにおける歯形誤差の影響(第2 報,多段歯車系の場合)  [in Japanese] Influence of tooth profile error in gear rattle(2nd report; In the case of multi-step gear system)  [in Japanese]

Gear rattle of multi-step helical gear system is treated. Mesh stiffness variations and tooth profile errors are considered within the system. The effects of mesh stiffness variations, the ratio of static torque to dynamic one and tooth profile errors on the rattle are studied by a highly accurate numerical analysis called the shooting method. As a result, the followings were made clear. (1) Because of the tooth profile errors, the amplitude of resonances like gear noise becomes large and the vibration becomes chaos. These resonances are confirmed in some regions. (2) The phenomena which generate when the constant torque is smaller than the amplitude of variational torque in some extent are similar to those of single step gear system, the displacement amplitude of one-sided impact rattle is affected by tooth profile error, but that of both sides impact rattle is not affected so much.

Gear rattle of multi-step helical gear system is treated. Mesh stiffness variations and tooth profileerrors are considered within the system. The effects of mesh stiffness variations, the ratio of statictorque to dynamic one and tooth profile errors on the rattle are studied by a highly accurate numericalanalysis called the shooting method. As a result, the followings were made clear. (1) Because of thetooth profile errors, the amplitude of resonances like gear noise becomes large and the vibrationbecomes chaos. These resonances are confirmed in some regions. (2) The phenomena which generatewhen the constant torque is smaller than the amplitude of variational torque in some extent are similarto those of single step gear system, the displacement amplitude of one-sided impact rattle is affectedby tooth profile error, but that of both sides impact rattle is not affected so much.