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Gear impacts and idle gear noise: Experimental study and non-linear dynamic model

机译：齿轮冲击和空转齿轮噪声：实验研究和非线性动力学模型

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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.rnA 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.rnA 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.rnSimulations, compared with experimental results, confirm the accuracy of the model proposed.rnBoth model and experiments show, for particular excitation conditions, the emergence of repeated impacts on one side of the gear mesh.
机译：本文对汽车变速箱内的​​一个松动齿轮（非啮合齿轮副）对涉及齿轮冲击的动力学现象进行了实验和数值研究。设计了一个专用的试验台。为了阐明潜在现象，专门开发了基于“订单跟踪方法”的信号处理工具。特别注意驱动轴激励与冲击的能量和性质之间的关系。基于接触固体的几何描述，提出了接触的拓扑模型。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。模型的所选参数不是从测量值更新而来的，而是从齿轮拓扑和公差等级的知识中更新的。rn仿真与实验结果相比，证实了所提出模型的准确性。rn模型和实验均表明，对于特定的励磁条件，在齿轮网的一侧反复出现冲击。

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