Spur Gear Tooth Pitting Propagation Assessment Using Model-based Analysis

Chinese Journal of Mechanical Engineering

Ming Jian Zuo¹  Xi-Hui Liang¹  Jun Pan²  Zhi-Liang Liu³ 

[1] Department of Mechanical Engineering, University of Alberta, T6G 1H9, Edmonton, Canada;Key Laboratory of Reliability Technology for Mechanical and Electrical Product of Zhejiang Province, Zhejiang Sci-Tech University, 310018, Hangzhou, China;School of Mechatronics Engineering, University of Electronic Science and Technology, 611731, Chengdu, China;

关键词: Mesh stiffness;    Mesh damping;    Gear dynamics;    Vibration;    Statistical feature;    Dynamic simulation;   

DOI  :  10.1007/s10033-017-0196-z

来源: Springer

【 摘 要 】

Tooth pitting is a common failure mode of a gearbox. Many researchers investigated dynamic properties of a gearbox with localized pitting damage on a single gear tooth. The dynamic properties of a gearbox with pitting distributed over multiple teeth have rarely been investigated. In this paper, gear tooth pitting propagation to neighboring teeth is modeled and investigated for a pair of spur gears. Tooth pitting propagation effect on time-varying mesh stiffness, gearbox dynamics and vibration characteristics is studied and then fault symptoms are revealed. In addition, the influence of gear mesh damping and environmental noise on gearbox vibration properties is investigated. In the end, 114 statistical features are tested to estimate tooth pitting growth. Statistical features that are insensitive to gear mesh damping and environmental noise are recommended.

【 授权许可】

CC BY