Contact-impact Analysis of Gear Transmission System
Contact-impact Analysis of Gear Transmission System
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DOI：
10.3901/jme.2011.07.022
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发表时间：
2011
影响因子：
--
通讯作者：
Tang Jinyuan
中科院分区：
文献类型：
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作者：
Tang Jinyuan
基于接触动力学和齿轮传动物理模型，提出了齿轮啮合中冲击的新概念，研究了啮合点速度差引起的啮合齿副间的接触/冲击现象，建立了齿轮啮合的接触-冲击模型，给出了求解算法，分析了不同冲击速度和冲击位置对冲击合力的影响，分析了冲击时间和冲击应力，利用解析计算公式计算并比较了各冲击位置和各冲击速度下的最大冲击力，验证了数值计算结果的正确性，研究表明，冲击速度和冲击位置对冲击合力均有显著影响，冲击时间和冲击应力，并给出了不同冲击条件下冲击过程中齿面最大应力点的分布，从而为我国的工业化生产提供参考。计算结果表明，最大接触应力点集中在接触面中部附近区域，齿宽
A new concept of impact in gear meshing based on contact dynamics and physical model of gear drive is put forward.The phenomenon of contact/impact between the meshing tooth pair caused by the velocity difference at the meshing point is studied.The model of contact-impact of gear meshing is built,and the solution algorithm is given.The influences of different impact velocity and impact position on the resultant impact force,impact time and impact stress are analyzed,and the maximal impact forces at each impact position and each impact velocity are calculated and compared by using the analytical calculation equation,so as to verify the validity of the numerical calculation result.The research shows that both impact velocity and impact position have significant influences on the resultant impact force,impact time and impact stress.Besides,the distributions of the maximal stress points on the tooth surface during the impact process under different impact conditions are also given,thus providing reference for in-depth research of contact fatigue and accumulated fatigue.The calculation result shows that the maximal contact stress points concentrate in the nearby area of the middle of tooth breadth.