考虑时变摩擦的裂纹齿轮副动态特性研究

IF 1.9 4区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics Pub Date : 2022-12-01 DOI:10.1177/14644193221141778

Shuai Mo, Xiaosong Hu, Dongdong Wang, Heyun Bao, Guojian Cen, Yunsheng Huang

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引用次数: 3

摘要

齿轮在实际运行过程中，会出现摩擦、开裂等现象。基于能量法，建立了齿轮副时变啮合刚度求解模型，建立了齿轮传动系统动力学模型，并利用小波变换和统计指标分析了振动信号及其响应的灵敏度。结果表明:裂纹进入网格后，促进了摩擦对网格刚度的影响;摩擦会使振动位移增大，而裂纹会使振动位移产生振动冲击，裂纹处的小波图会变亮，峰度是判断裂纹损伤的最有效指标，为研究实际工况下摩擦和裂纹的动态特性及减振降噪提供了理论依据。

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Research on dynamic characteristics of cracked gear pair considering time-varying friction

During the actual operation of gears, phenomena such as friction and cracking occur. Based on the energy method, a time-varying mesh stiffness solution model of the gear pair is established, and a dynamics model of the gear transmission system is built, and the sensitivity of the vibration signal and its response is analysed using wavelet transform as well as statistical indicators. The results show that cracks promote the effect of friction on the mesh stiffness as they enter the mesh. Friction will make the vibration displacement increase, and crack will cause vibration displacement to produce vibration shock, the wavelet diagram at the crack will become bright, kurtosis is the most effective indicator to determine the crack damage, which provides a theoretical basis to study the dynamic characteristics of friction and crack under actual working conditions and vibration and noise reduction.

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来源期刊

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics 工程技术-工程：机械

CiteScore

4.10

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Multi-body Dynamics is a multi-disciplinary forum covering all aspects of mechanical design and dynamic analysis of multi-body systems. It is essential reading for academic and industrial research and development departments active in the mechanical design, monitoring and dynamic analysis of multi-body systems.