Department of Automation, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Institute of Product and Process Innovation (PPI), Leuphana University of Lüneburg, Universitatsallee 1, 21335 Lüneburg, Germany.
Sensors (Basel). 2022 Aug 24;22(17):6366. doi: 10.3390/s22176366.
This paper focuses on the influence of radial internal clearance on the dynamics of a rolling-element bearing. In the beginning, the 2-Degree of Freedom (DOF) model was studied, in which the clearance was treated as a bifurcation parameter. The derived nonlinear mathematical model is based on Hertzian contact theory and takes into consideration shape errors of rolling surfaces and eccentricity reflecting real operating conditions. The analysis showed characteristic dynamical behavior by specific clearance range, which reflects others in a low or high amplitude and can refer to the optimal clearance. The experimental validation was conducted with the use of a double row self-aligning ball bearing (SABB) NTN 2309SK in which the acceleration response was measured by various rotational velocities. The time series obtained from the mathematical model and the experiment were analyzed with the recurrence quantification analysis.
本文主要研究了径向内部间隙对滚动轴承动力学的影响。首先，研究了二维自由度（DOF）模型，其中间隙被视为分岔参数。所推导的非线性数学模型基于赫兹接触理论，并考虑了滚动表面的形状误差和反映实际运行条件的偏心率。分析表明，在特定的间隙范围内存在特征动力学行为，这在低幅度或高幅度下反映了其他情况，并可以参考最佳间隙。实验验证使用了 NTN 2309SK 双列自调心球轴承（SABB）进行，其中通过各种转速测量了加速度响应。从数学模型和实验中获得的时间序列使用递归定量分析进行了分析。
