NUMERICAL INVESTIGATIONS ON DYNAMIC

TRANSMISSION ERROR AND STABILITY OF A

GEARED ROTOR-BEARING SYSTEM

Chen Anhua  Luo Shanming  Wang Wenming  Guo Yingfu  Liu Deshun

(Heath Maintenance for Mechanical Equipment Key Laboratory of Hunan Province, Human

University of Science and Technology, Xiangtan 411201)

Abstract: A three-degree-of-freedom dynamic model coupled transverse-torsional motion of a geared rotor-bearing system, which includes time varying mesh stiffness, mesh damping, bearing stiffness and bearing damping, is developed. Influences of involute contact ratio, bearing stiffness, mesh damping and bearing damping on the dynamic transmission error and vibration stability of the gear system are investigated using digital simulation technique. The conclusions are helpful to dynamical design of high-speed and precision gear transmission.

Key words: Gear  Dynamic transmission error  Stability

CLC No: TH132.41

国家自然科学基金(50205023)和湖南省自然科学基金(01JJY2154)资助项目. Received 20030129，received in revised form 20030828