东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (7): 996-1000.DOI: 10.12068/j.issn.1005-3026.2014.07.019

• 机械工程 • 上一篇    下一篇

考虑安装与制造误差的齿轮动态接触仿真

佟操，孙志礼，马小英，柴小冬   

  1. (东北大学 机械工程与自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2013-09-03 修回日期:2013-09-03 出版日期:2014-07-15 发布日期:2014-04-11
  • 通讯作者: 佟操
  • 作者简介:佟操(1986-)，男，辽宁营口人，东北大学博士研究生;孙志礼(1957-)，男，山东巨野人，东北大学教授，博士生导师.
  • 基金资助:
    国家科技重大项目(2013ZX04011-011).

Dynamic Simulation of Spur Gears with Assembly Errors and Machining Errors

TONG Cao， SUN Zhili， MA Xiaoying， CHAI Xiaodong   

  1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.
  • Received:2013-09-03 Revised:2013-09-03 Online:2014-07-15 Published:2014-04-11
  • Contact: TONG Cao
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摘要： 根据齿轮精度标准中误差的定义和说明，提出一种用于齿轮动力学分析的安装与制造误差等效定义，采用Pro/E二次开发，建立带有安装与制造误差的齿轮参数化模型;基于动态接触力学和显式动力学有限元算法，建立齿轮有限元模型;采用大变形显式动力学软件ANSYS/LS-DYNA对其进行动态仿真，从而实现求解齿轮在接触过程中安装与制造误差影响下的动态接触应力.研究表明，各类随机误差愈大，则对齿轮啮合冲击应力的影响愈大，其中齿距方向的偏差和啮合面上转角误差对齿轮接触应力的影响最大，啮合垂直面上转角误差的影响最小，当齿轮的安装误差与制造误差同时存在时，齿面接触应力变化最为剧烈.

关键词: 直齿圆柱齿轮, 安装误差, 制造误差, 参数化, 接触碰撞, 动态仿真, 接触应力

Abstract: According to the definition and description of error in the gear precision standard， an equivalent definition of assembly errors and machining errors was proposed for the gear dynamic analysis. A gear parametric model with assembly errors and machining errors was established by Pro/E secondary development. Then the gear finite element model was created based on dynamic contact mechanics and explicit dynamic finite element method. Finally， its dynamic simulation was conducted using the large deformation explicit dynamics software ANSYS/LSDYNA， thus the the calculation for gear contact stress on tooth contact was available to consider the effects of assembly errors and machining errors. Results showed that the larger all kinds of random errors are， the greater the impact of the gear contact stress are. Of all kinds of random errors， the effects of gear machining error and misalignment error on the plane of action are the most obvious， while the misalignment error on the vertical plane of action exerts the least effect on the gear contact stress. The most significant fluctuation of tooth contact stresses appears when the assembly errors and machining errors both exist.

Key words: spur gear, assembly errors, machining errors, parametric, contactimpact, dynamic simulation, contact stress

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