Study on interactions between tooth backlash and journal bearing clearance nonlinearity in spur gear pair system

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• 作者：Zhenxing Liu ; ^{liuzx_hit@qq.com} ; Zhansheng Liu ; Jingming Zhao ; Guanghui Zhang
• 关键词：Spur gear pair ; Nonlinear oil force ; Backlash ; Bearing center distance ; Tooth wedging ; Vibration response
• 刊名：Mechanism and Machine Theory
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：107
• 期：Complete
• 页码：229-245
• 全文大小：3688 K
• 卷排序：107

文摘

The model in this paper involves mesh forces, nonlinear oil-film forces and the shift of bearing position simultaneously. Equilibrium positions of journal centers are depicted. Oil whirl and the induced tooth separation are observed in responses. Self-adaption of the rotor journal in bearing clearance exists during the shortening of bearing center distance. Tooth wedging phenomenon led by shift of bearing position are presented. Results show that both the shortening of bearing center distance and transmitted torque contribute to the tooth wedging.