华电技术 ›› 2019, Vol. 41 ›› Issue (6): 17-22.

• 研究与开发 • 上一篇    下一篇

基于ANSYS的齿轮模态特性研究

  

  1. 许继集团有限公司,河南许昌〓461000
  • 出版日期:2019-06-25 发布日期:2019-07-12

Research on the characteristics of gear modals based on ANSYS

  1. Xuji Group Corporation, Xuchang 461000, China
  • Online:2019-06-25 Published:2019-07-12

摘要:

为了研究齿轮的模态特性,使用GearTrax软件建立一对常见的传动齿轮模型,然后将其中一个小齿轮导入到ANSYS软件里进行网格单元划分的操作,得到对应的有限元单元模型,然后再使用ANSYS有限元软件建立了良好状态下以及故障状态下的直齿圆柱齿轮模型。选用一种合适的建模方式对前面两种方式得到的有限元模型的前八阶模态进行分析对比,与良好齿轮的模态频率相比,故障齿轮的模态频率发生了一定的变化。这一结论可为以后齿轮故障分析提供一种新的思路。

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Abstract:

In order to study the modal characteristics of gears, models of apair of common transmission gears are established by software GearTrax. A model of a pinion is imported into ANSYS for meshing and corresponding finite element models are obtained.Then,models of straight cylindrical gears in good condition and fault condition are established by ANSYS. A suitable modeling approach is taken to compare the first eighth order modals obtained by the two methods above.Compared with the modal frequencies of complete gear,themodal frequencies of the broken gears have certain changes.The conclusion provides a new way for the gear fault analysis in the future.

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