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首页> 外文期刊>Mechanism and Machine Theory: Dynamics of Machine Systems Gears and Power Trandmissions Robots and Manipulator Systems Computer-Aided Design Methods >Mesh stiffness and nonlinear dynamic response of a spur gear pair considering tribo-dynamic effect
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Mesh stiffness and nonlinear dynamic response of a spur gear pair considering tribo-dynamic effect

机译：考虑摩擦动力学效应的浇口齿轮对的网格刚度和非线性动力响应

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摘要

Lubricant between teeth fills the backlash and provides a supporting stiffness, while the traditional gear dynamics neglect the effect of lubrication. In this work, a coupled tribodynamic model for a spur gear pair is proposed incorporating the lubrication sub-model and the torsional dynamic sub-model. This model considers both the load-dependent combined mesh stiffness and nonlinear backlash due to lubricant. The dynamic sub-model predicts the dynamic mesh force used in the lubrication sub-model, which also provides the load-dependent stiffness for the dynamic prediction. Compared with the dry contact condition, the proposed method shows a slight variation of vibration under the permanent contact condition, but an obvious reduction in vibration amplitude when contact loss occurs. Under the effect of the lubrication, the obtained mean values of dynamic transmission error decrease over a large range of rotational speeds. Meanwhile, near the resonance regions, the peak-to-peak values of dynamic transmission error, the extents of dual-value region and the contact loss percentages all decrease. (C) 2020 Elsevier Ltd. All rights reserved.
机译：牙齿之间的润滑剂填充了间隙并提供了支撑刚度，而传统的齿轮动力学忽略了润滑的效果。在这项工作中，提出了一种用于齿轮对的耦合的TRIBORY模型，包括润滑子模型和扭转动态子模型。该模型认为由于润滑剂引起的负载相关的组合网格刚度和非线性间隙。动态子模型预测润滑子模型中使用的动态网格力，其还提供了动态预测的依赖性刚度。与干接触条件相比，该方法在永久接触条件下显示出振动的略微变化，但在接触损耗发生时的振动幅度明显降低。在润滑的效果下，所获得的动态传输误差的平均值在大量的转速范围内降低。同时，在谐振区附近，动态传输误差的峰值峰值，双值区域的范围和接触损耗百分比均下降。 （c）2020 elestvier有限公司保留所有权利。

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