Abstract Vibration and noise of gear meshing come from the dynamic working conditions, therefore, combining gear modification and dynamic characteristic analysis may offer reliable basis for the modification. Compared with profile modification and axial modification, 3-D modification is more comprehensive. The existing problems in current gear modification includes: (1) The ideal force under static or quasi-static conditions is used to replace the transient dynamic meshing force, so the effect of modification is not obvious in the middle and high speed gear transmission. (2) Though the modification is completed according to the dynamic performance, the dynamic characteristic analysis is not well combined with the gear meshing performance. Tooth contact analysis (TCA) and loaded tooth contact analysis (LTCA) can simulate the meshing process of gear and provide precise tooth surface geometric analysis data for later dynamic characteristic analysis. Therefore, combining TCA technology, LTCA technology and dynamic performance of gear, a 3-D modification method for reducing vibration of helical gear is proposed. Two application examples are given and good vibration reduction effects have been obtained. The biggest highlight of the paper is to use TCA technology, LTCA technology and dynamic characteristic analysis of gear to complete the 3-D modification of helical gear.

中文翻译：

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基于TCA技术、LTCA技术和系统动力学的斜齿轮减振3维修形研究

摘要 齿轮啮合的振动和噪声来自动态工况，因此，将齿轮修形与动态特性分析相结合，可为修形提供可靠的依据。与轮廓修形和轴向修形相比，3-D 修形更为全面。目前齿轮改型存在的问题包括：（1）用静态或准静态条件下的理想力代替瞬态动态啮合力，在中高速齿轮传动中改型效果不明显。(2)虽然根据动态性能完成了修改，但动态特性分析与齿轮啮合性能没有很好的结合。齿接触分析（TCA）和加载齿接触分析（LTCA）可以模拟齿轮的啮合过程，为后期的动态特性分析提供精确的齿面几何分析数据。因此，将TCA技术、LTCA技术与齿轮动态性能相结合，提出了一种斜齿轮减振的3D修形方法。给出了两个应用实例，取得了良好的减振效果。论文最大的亮点是利用TCA技术、LTCA技术和齿轮动态特性分析完成斜齿轮的3D修形。提出了一种减少斜齿轮振动的3-D修正方法。给出了两个应用实例，取得了良好的减振效果。论文最大的亮点是利用TCA技术、LTCA技术和齿轮动态特性分析完成斜齿轮的3D修形。提出了一种减少斜齿轮振动的3-D修正方法。给出了两个应用实例，取得了良好的减振效果。论文最大的亮点是利用TCA技术、LTCA技术和齿轮动态特性分析完成斜齿轮的3D修形。