The Open Mechanical Engineering Journal

2014, 8 : 396-401
Published online 2014 December 09. DOI: 10.2174/1874155X01408010396
Publisher ID: TOMEJ-8-396

Transverse-Torsional Vibrations of the High-Speed Planetary Gear Transmission

He Zhaoxia , Liu Qingtao , Chang Lehao and Wu Jinsong
Key Laboratory of Road Construction Technology and Equipment, Ministry of Education, Chang’an University, Nan Er Huan Zhong Duan, Xi’an, Postcard: 710064, China.

ABSTRACT

The vibration characteristics of a high-speed planetary gear transmission (PGT) are studied in this paper. A transverse-torsional coupling dynamic model is developed using lumped parameter method. In order to ensure the accuracy of the analysis model, the mesh stiffness, support stiffness and the influence of eccentric masses on system are also considered. By solving the eigenvalue of differential equations of motion, the natural frequencies and mode shapes are calculated. According to the vibration modes of this gear transmission, the characteristics of translational mode and torsional mode are described in details. The influence of mesh stiffness, support stiffness and modal modes are discussed by adopting strain and kinetic energy.

Keywords:

Mesh stiffness, Modal analysis, Strain.