An Explanation for the Asymmetry of the Modulation Sidebands about the Tooth Meshing Frequency in Epicyclic Gear Vibration

An Explanation for the Asymmetry of the Modulation Sidebands about the Tooth Meshing Frequency in Epicyclic Gear Vibration
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DOI：
10.1243/pime_proc_1985_199_092_02
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发表时间：
1985-01
期刊：
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
影响因子：
--
通讯作者：
P. McFadden;J. D. Smith
P. McFadden;J. D. Smith
中科院分区：
其他
文献类型：
--
作者：
P. McFadden;J. D. Smith

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行星齿轮的振动频谱通常表现出明显的调制边带不对称性，甚至完全抑制了啮合频率处的分量。提出了一个模型，它用每个行星齿轮相对于换能器位置移动时产生的振动之间的关系来解释这些观测结果。对几个行星变速箱的振动谱与模型预测值的比较表明，模型预测值与实测值吻合良好。
The vibration spectra of epicyclic gears commonly exhibit considerable asymmetry of the modulation sidebands and even complete suppression of the component at the tooth meshing frequency. A model is proposed which explains these observations in terms of the relationship between the vibrations generated by each of the planet gears as they move relative to the transducer location. Comparisons of the predictions of the model with measured vibration spectra for several epicyclic gearboxes show good agreement.