行星传动系统啮入冲击提取技术及验证

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摘要针对行星传动系统受误差随机性及复杂耦合关系影响难以准确构建系统啮入冲击解析模型的局限，提出结合希尔伯特黄变换、小波降噪及瞬时频率理论，由试验应变信号提取系统啮入冲击的方法。通过设计测量方法并搭建试验平台，获取应变信号频率瞬时变化点，判定提前啮入发生位置，从而获取系统啮入冲击，并创建内啮合副啮入冲击解析模型和有限元分析模型对所提方法予以验证。结果表明，试验结果因受外界因素影响大于理论结果和有限元结果，但三者在趋势及规律性上完全一致。本文试验提取方案避免了复杂数学解析模型的构建，且不受系统复杂性及多样性影响，具备广泛、准确、方便等优点，可为实时修形设计以及复杂传动系统的动态性能评测提供依据。

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	胡升阳1
	方宗德2
	刘超3
	侯祥颖4
	杜进辅3
	沈刚1

关键词 ：行星传动系统, 试验提取, 啮入冲击, 希尔伯特黄变换, 瞬时频率

Abstract：Aiming at the limitation that the transmission system is affected by the randomness of the error and the complex coupling relation, it is difficult to construct the analytical model of the system's meshing impact. In this paper, a new method is proposed, which combines Hilbert-Huang transform, wavelet denoising and instantaneous frequency theory. By designing the measurement method and setting up the test platform, the instantaneous change point of strain signal frequency was obtained, and the position of advance meshing was determined, so as to obtain the system's meshing impact. Analytical model of internal meshing pair's meshing impact and a finite element analysis model were created to verify the proposed method. The results show that the experimental results are more influenced by external factors than the theoretical results and finite element results, but the trend and regularity of the three are completely consistent. The experimental extraction scheme in this paper avoids the construction of complex mathematical analytical model, is not affected by the complexity and diversity of the system, and has the advantages of wide, accurate and convenient, which can provide a basis for real-time shape modification design and dynamic performance evaluation of complex transmission system.

Key words： planetary transmission system experimental extraction meshing impact hilbert-huang transform instantaneous frequency

收稿日期: 2022-09-03 出版日期: 2023-11-15

引用本文:

胡升阳1，方宗德2，刘超3，侯祥颖4，杜进辅3，沈刚1. 行星传动系统啮入冲击提取技术及验证[J]. 振动与冲击, 2023, 42(21): 63-70.
HU Shengyang1, FANG Zongde2, LIU Chao3, HOU Xiangying4, DU Jinfu3, SHEN Gang1. Extraction technology and verification of meshing impact in planetary transmission system. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(21): 63-70.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I21/63

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