A Study on Bearing Dynamic Features under the Condition of Multiball–Cage Collision

Ma, Shuaijun; Zhang, Xiaohong; Yan, Ke; Zhu, Yan; Hong, Jun

doi:10.3390/lubricants10010009

Cited by 38 publications

(20 citation statements)

References 26 publications

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“…Specific size and material parameters are shown in Table 1. In this paper, the parametric design method is used to model the FPCBB in ADAMS/View by macro commands and CMD program [27,28]. The 3D model, as shown in Figure 3, can be obtained by inputting corresponding structural parameters.…”

Section: Solid Model Creationmentioning

confidence: 99%

Dynamic Performance Analysis of Cage in Four-Point Contact Ball Bearing

Zhu

et al. 2022

Lubricants

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Due to the special structure of double-half inner rings, four-point contact ball bearings are prone to uneven forces in the inner raceway during movement, which affects the dynamic performance of the rolling element and cage, and even leads to cage sliding. Dynamic performance of the cage is an important factor affecting the working stability of bearings. In this paper, in order to grasp the operation law of the cage so as to guide the application of four-point contact ball bearings, the dynamic model of four-point contact ball bearings is established by the secondary development of Automatic Dynamic Analysis of Mechanical Systems (ADAMS). The dynamic performance of the cage is analyzed and evaluated with the indexes of vortex radius ratio and vortex velocity deviation ratio of the cage centroid trajectory. The results show the following: the cage stability increases and then decreases to a certain degree with rotating speed-rise; it increases and then decreases with the increase in the pure axial load; under a combination of axial and radial load, the cage moves more smoothly with smaller radial force. Rotating speed has little effect on cage stability, while radial force has a great influence on cage stability, followed by axial load. In order to verify the simulation results, a test bench for rolling bearing cages is developed, and the accuracy of the simulation results is verified by the test results.

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Section: Solid Model Creationmentioning

confidence: 99%

Dynamic Performance Analysis of Cage in Four-Point Contact Ball Bearing

Zhu

et al. 2022

Lubricants

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“…In general, the RUL prediction of bearings can be sorted into two different directions: physics-based methods and data-driven methods. Physics-based methods focus on physical and mathematical models, e.g., partial differential equations and state-space models, which require extensive prior knowledge [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

SACGNet: A Remaining Useful Life Prediction of Bearing with Self-Attention Augmented Convolution GRU Network

Duan

Chen³

et al. 2022

Lubricants

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In recent years, the development of deep learning-based remaining useful life (RUL) prediction methods of bearings has flourished because of their high accuracy, easy implementation, and lack of reliance on a priori knowledge. However, there are two challenging issues concerning the prediction accuracy of existing methods. The run-to-failure sequential data and its RUL labels are almost inaccessible in real-world scenarios. Meanwhile, the existing models usually capture the general degradation trend of bearings while ignoring the local information, which restricts the model performance. To tackle the aforementioned problems, we propose a novel health indicator derived from the original vibration signals by combining principal components analysis with Euclidean distance metric, which was motivated by the desire to resolve the dependency on RUL labels. Then, we design a novel self-attention augmented convolution GRU network (SACGNet) to predict the RUL. Combining a self-attention mechanism with a convolution framework can both adaptively assign greater weights to more important information and focus on local information. Furthermore, Gated Recurrent Units are used to parse the long-term dependencies in weighted features such that SACGNet can utilize the important weighted features and focus on local features to improve the prognostic accuracy. The experimental results on the PHM 2012 Challenge dataset and the XJTU-SY bearing dataset have demonstrated that our proposed method is superior to the state of the art.

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“…Despite numerous previous studies focusing on analyzing the friction torque of TRBs with the designed geometric dimensions, in practical engineering applications, manufacturing errors are unavoidable, which can affect the contact state between mating bearing Lubricants 2022, 10, 154 2 of 12 components [7][8][9][10] and thus the friction torque of TRBs. Aschenbrenner [11] presented a variational simulation framework for the analysis of the load distribution of cylindrical roller bearings with component geometric deviations, providing a basis for investigating the frictional torque of tapered roller bearings with component geometric deviations.…”

Section: Introductionmentioning

confidence: 99%

An Investigation for the Friction Torque of a Tapered Roller Bearing Considering the Geometric Homogeneity of Rollers

et al. 2022

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The geometric homogeneity of rollers, namely the dimension and shape deviations among rollers in a roller bearing, is one of the most important manufacturing errors. However, to the best of the authors’ knowledge, no specified investigation has been carried out on the effects of the geometric homogeneity of rollers on the friction torque of tapered roller bearings (TRBs). By introducing the diameter deviation of rollers and the distribution form of rollers with a diameter deviation, this study presents a mathematic model to reveal the effects of the geometric homogeneity of rollers on the friction torque of TRBs. The geometric homogeneity of the rollers, although having only a minimal influence on the overall friction torque acting on rings, can lead to a significant increase in the slide friction force between the individual rollers and the inner raceway. By comparing the distribution form of rollers with a diameter deviation, the diameter deviation value of the roller shows a significant influence on the maximum sliding friction between the roller and the inner raceway. The impact of the geometric homogeneity of rollers on the sliding friction between the roller and the inner raceway is more pronounced under light load conditions. The above-mentioned comparisons and conclusions can be used in formulating machining error criteria for TRB rollers.

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A Study on Bearing Dynamic Features under the Condition of Multiball–Cage Collision

Cited by 38 publications

References 26 publications

Dynamic Performance Analysis of Cage in Four-Point Contact Ball Bearing

Dynamic Performance Analysis of Cage in Four-Point Contact Ball Bearing

SACGNet: A Remaining Useful Life Prediction of Bearing with Self-Attention Augmented Convolution GRU Network

An Investigation for the Friction Torque of a Tapered Roller Bearing Considering the Geometric Homogeneity of Rollers

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