Dynamic Modeling of Rolling Element Bearings With Surface Contact Defects Using Bond Graphs
Dynamic Modeling of Rolling Element Bearings With Surface Contact Defects Using Bond Graphs
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DOI：
10.1115/1.4003088
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发表时间：
2011
影响因子：
2.5
通讯作者：
Mohsen Nakhaeinejad;M. D. Bryant
中科院分区：
文献类型：
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作者：
Mohsen Nakhaeinejad;M. D. Bryant
使用矢量键合图对健康和故障滚动轴承的多体动力学进行建模。为具有九个球和两个环（11 个元件）的轴承构建了 33 自由度 (DOF) 模型。所开发的模型可以扩展到具有 n 个元件和平面运动 (3 × n) DOF 以及三维运动 (6 X n) DOF 的滚动轴承。该模型结合了陀螺和离心效应、接触弹性偏转和力、接触滑移、接触分离和局部故障。通过表面轮廓的变化对内圈、外圈和球上的凹痕和凹坑进行建模。模拟了各种径向载荷和间隙下的轴承载荷区域。研究了故障的类型、尺寸和形状对滚动轴承振动响应以及存在局部故障时接触动力学的影响。使用健康轴承和故障轴承进行实验来验证模型。所提出的模型明显模仿了健康和有故障的滚动轴承。
Multibody dynamics of healthy and faulty rolling element bearings were modeled using vector bond graphs. A 33 degree of freedom (DOF) model was constructed for a bearing with nine balls and two rings (11 elements). The developed model can be extended to a rolling element bearing with n elements and (3 × n) DOF in planar and (6 X n) DOF in three dimensional motions. The model incorporates the gyroscopic and centrifugal effects, contact elastic deflections and forces, contact slip, contact separations, and localized faults. Dents and pits on inner race and outer race and balls were modeled through surface profile changes. Bearing load zones under various radial loads and clearances were simulated. The effects of type, size, and shape of faults on the vibration response in rolling element bearings and dynamics of contacts in the presence of localized faults were studied. Experiments with healthy and faulty bearings were conducted to validate the model. The proposed model clearly mimics healthy and faulty rolling element bearings.