EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS

ZHAO Xin; ZHANG XiuHua; PU Jiang

doi:10.16579/j.issn.1001.9669.2020.06.022

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EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS

更新时间：2022-09-22

- EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS
- Journal of Mechanical Strength Vol. 42, Issue 6, Pages: 1424-1429(2020)
- 作者机构：
  
  1. 贵州大学机械工程学院
  2. 贵州民族大学机械电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.06.022
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ZHAO Xin, ZHANG XiuHua, PU Jiang. EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS. [J]. 42(6):1424-1429(2020)
DOI：

ZHAO Xin, ZHANG XiuHua, PU Jiang. EFFECT OF PITTING ON MESHING STIFFNESS OF GEARS. [J]. 42(6):1424-1429(2020) DOI： 10.16579/j.issn.1001.9669.2020.06.022.

摘要

齿轮啮合刚度变化是因齿轮运行时轮齿之间的啮合位置与啮合齿数量变化引起的,啮合刚度的变化体现了齿轮啮合过程的变化。当齿轮发生点蚀时,齿轮的啮合刚度会发生变化,进而导致齿轮箱振动规律的变化,这种变化可以用来判断齿轮箱内部故障的严重与否。根据点蚀的真实状况将点蚀坑设置为椭圆截面。利用势能法计算了点蚀故障下的啮合刚度,并分析了点蚀位置、大小、深度对啮合刚度的影响。结果表明在一个轮齿啮合过程中,点蚀对轮齿下方未发生点蚀区域啮合刚度没有影响,点蚀位置越靠近齿顶,对点蚀轮齿上方啮合刚度的影响越大,点蚀坑越深,面积越大啮合刚度降低越多,面积变化对啮合刚度变化影响更加明显。

Abstract

The change of meshing stiffness of gears is caused by the change of meshing position and meshing number between gears when the gears are running.The change of meshing stiffness reflects the change of meshing process of gears.When pitting occurs,the meshing stiffness of gears will change,which will lead to the change of vibration law of gearbox.This change can be used to judge whether the internal fault of gearbox is serious or not.According to the actual situation of pitting,pitting pits are set as elliptical sections.The meshing stiffness under pitting failure is calculated by potential energy method,and the influence of pitting location,size and depth on meshing stiffness is analyzed.The results show that pitting has no effect on the meshing stiffness of the non-pitting area under the gear teeth during the meshing process.The closer the pitting position is to the top of the gear teeth,the greater the impact on the meshing stiffness above the pitting gear teeth.The deeper the pitting pit is,the larger the area is,the more the meshing stiffness decreases,and the more obvious the influence of the area change on the meshing stiffness changes.

关键词

点蚀故障啮合刚度势能法

Keywords

Pitting failureMeshing stiffnessPotential method

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School of Mechatronics＆ Vehicle Engineering,Chongqing Jiaotong University

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