Abstract
The pre-stressed modal properties of planetary gears of compound oscillatory roller transmission gear reducer considering the external torque and rotating angular velocity were calculated in this work. For the boundary conditions, the large torque was considered to output gear and angular velocity for applying to middle gear. The resonant frequencies of output gear under external torque were a little higher than the case of no external loads, because the stiffness of gear will be changed with external loads. But the resonant frequencies of middle gear show the no changes under rotating angular velocity, because the low angular velocity and no stiffness change with structure of gear. Finally from the cambell diagram, the calculated resonant frequencies were in the range of safety.
Publisher
Trans Tech Publications, Ltd.
Reference5 articles.
1. P Lynwander, Gear Drive Systems: Design and Application. Marcel Dekker, New York, (1983).
2. J. D. Smith, Gears and Their Vibration: A Basic Approach to Understanding Gear Noise. Marcel Dekker, New York and MacMillan, London, (1983).
3. Artelmus, Mathematical modeling and computer simulations as an aidtogearbox diagnostics, Mechanical Systems and Signal Processing15 (5) (2001) 855-871.
4. W. Bartelmus, Transformation of gear inter teeth forces into acceleration and velocity, in: Conference Proceedings of the Seventh International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Hawaii, USA, ; International Journal of Rotating Machinery5 (3s) (1999).
5. W. Bartelmus, Mathematical modeling of gearbox vibration for fault diagnosis, International Journal of COMADEM 3(4) (2000).