On gear time-varying meshing stiffness calculation considering indexing feeds and processing characteristics of gear shaping processing

IF 3.5 2区工程技术 Q2 ENGINEERING, MANUFACTURING Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-04 DOI:10.1016/j.precisioneng.2024.09.026

Yan Li , Gang Li , Zhonghou Wang , William Mayfield

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Abstract

Gear shaping causes processing characteristics on gear tooth surfaces (PCGTS), e.g., gear tooth surface deviation (GTSD) and processing textures (PT), which can affect gear meshing performances. Gear shaping simulation is operated to obtain PCGTS with different indexing feeds. An improved contact stiffness method of gear tooth surfaces is developed based on a wedge-shaped contact form to obtain tooth contact stiffness with PT caused by gear shaping. An improved time-varying meshing stiffness (TVMS) method for gears manufactured by gear shaping is developed to calculate TVMS of gears with GTSD and PT under different indexing feed conditions. Effectiveness of the improved TVMS method is validated using the finite element method. Analysis results of the proposed contact stiffness method of gear tooth surfaces indicate that PT caused by gear shaping can aggravate fluctuations of gear tooth contact stress. Analysis results of the proposed TVMS method for gears also indicate that GTSD of gear tooth surfaces caused by gear shaping can reduce their TVMS. The proposed TVMS method of gears can effectively analyze TVMS of gear tooth surfaces via gear shaping and evaluate processing settings of gear shaping to improve gear meshing performances.

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考虑分度进给和插齿加工特性的齿轮时变啮合刚度计算

插齿加工会导致齿轮齿面（PCGTS）出现加工特征，如齿面偏差（GTSD）和加工纹理（PT），从而影响齿轮的啮合性能。通过插齿模拟，可以获得不同分度进给量下的 PCGTS。基于楔形接触形式，开发了一种改进的齿轮齿面接触刚度方法，以获得由插齿引起的带有 PT 的齿面接触刚度。针对通过插齿制造的齿轮，开发了一种改进的时变啮合刚度（TVMS）方法，用于计算在不同分度进给条件下具有 GTSD 和 PT 的齿轮的 TVMS。使用有限元方法验证了改进的 TVMS 方法的有效性。拟议的齿轮齿面接触刚度方法的分析结果表明，插齿造成的 PT 会加剧齿轮齿面接触应力的波动。拟议的齿轮 TVMS 方法的分析结果还表明，由齿轮整形引起的齿轮齿面 GTSD 会降低其 TVMS。所提出的齿轮 TVMS 方法可有效分析通过插齿加工获得的轮齿表面 TVMS，并评估插齿加工的加工设置，以改善齿轮的啮合性能。

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来源期刊

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology 工程技术-工程：制造

CiteScore

7.40

自引率

5.60%

发文量

177

审稿时长

46 days

期刊介绍： Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology is devoted to the multidisciplinary study and practice of high accuracy engineering, metrology, and manufacturing. The journal takes an integrated approach to all subjects related to research, design, manufacture, performance validation, and application of high precision machines, instruments, and components, including fundamental and applied research and development in manufacturing processes, fabrication technology, and advanced measurement science. The scope includes precision-engineered systems and supporting metrology over the full range of length scales, from atom-based nanotechnology and advanced lithographic technology to large-scale systems, including optical and radio telescopes and macrometrology.