Gear impacts and idle gear noise: Experimental study and non-linear dynamic model
Gear impacts and idle gear noise: Experimental study and non-linear dynamic model
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DOI：
10.1016/j.ymssp.2009.05.007
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发表时间：
2009-11
影响因子：
8.4
通讯作者：
J. Dion;S. Moyne;G. Chevallier;H. Sebbah
中科院分区：
文献类型：
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作者：
J. Dion;S. Moyne;G. Chevallier;H. Sebbah
本文对涉及汽车变速箱内一个松动齿轮（非啮合齿轮对）的齿轮冲击的动态现象进行了实验和数值研究。为此研究设计了专用测试台。基于阶次跟踪方法的信号处理工具是专门开发的，目的是为了阐明潜在的现象。特别关注驱动轴激励与冲击能量和性质之间的关系。基于接触固体的几何描述，提出了一种接触拓扑模型。齿轮啮合之间的接触是使用单自由度、非线性、弹性和耗散模型定义的。所选择的模型参数不是根据测量更新的，而是根据齿轮拓扑和公差等级的知识更新的。仿真与实验结果相比，证实了所提出模型的准确性。模型和实验都表明，对于特定的激励条件，齿轮啮合一侧会出现重复冲击。
This paper develops an experimental and numerical study of dynamic phenomena involving gear impacts with one loose gear (non-engaged gear pair) inside an automotive gearbox. A dedicated test bench was designed for this study. Signal processing tools, based on the Order Tracking Method, were specially developed in order to clarify the underlying phenomena. A particular attention was paid to the relationship between the drive shaft excitation and the energy and nature of impacts. A topological model of contact is being proposed, based on a geometric description of solids in contact. The contact between gear meshes is defined using a Single Degree of Freedom, non-linear, elastic and dissipative model. The chosen parameters of the model are not updated from measurements, but from the knowledge of the gear topology and tolerance class. Simulations, compared with experimental results, confirm the accuracy of the model proposed. Both model and experiments show, for particular excitation conditions, the emergence of repeated impacts on one side of the gear mesh.