The Experts below are selected from a list of 9432 Experts worldwide ranked by ideXlab platform
Yeon-pun Chang - One of the best experts on this subject based on the ideXlab platform.
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Stiffness determination of angular-contact Ball Bearings by using neural network
Tribology International, 2006Co-Authors: Yuan Kang, Chih-ching Huang, Chorng-shyan Lin, Ping-chen Shen, Yeon-pun ChangAbstract:All angular-contact Ball Bearings have similar features regarding geometry, mechanism, and structure. The stiffness of this type of Bearings can be related to geometry, dimension, and operating conditions by a very complex function. This function involves high order and coupled variables. This study presents this stiffness function for all angular-contact Ball Bearings by a back-propagation neural network method (BPNN), which is trained by using several (not all) samples. The utility of the BPNN is demonstrated for actual cases. Each are catalogued SKF series angular-contact Ball Bearings.
Yuan Kang - One of the best experts on this subject based on the ideXlab platform.
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Stiffness determination of angular-contact Ball Bearings by using neural network
Tribology International, 2006Co-Authors: Yuan Kang, Chih-ching Huang, Chorng-shyan Lin, Ping-chen Shen, Yeon-pun ChangAbstract:All angular-contact Ball Bearings have similar features regarding geometry, mechanism, and structure. The stiffness of this type of Bearings can be related to geometry, dimension, and operating conditions by a very complex function. This function involves high order and coupled variables. This study presents this stiffness function for all angular-contact Ball Bearings by a back-propagation neural network method (BPNN), which is trained by using several (not all) samples. The utility of the BPNN is demonstrated for actual cases. Each are catalogued SKF series angular-contact Ball Bearings.
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a computation strategy based on neural network for stiffness determination of deep groove Ball Bearings
Industrial Lubrication and Tribology, 2004Co-Authors: Yuan Kang, Chih-ching Huang, Ping-chen Shen, Chenghsien Chen, Linkan YangAbstract:All deep‐groove Ball Bearings have similar features in geometry, mechanism, and structure. Stiffness of this type of Bearings is related to geometry, dimensions, and operating conditions by a very complex, high‐order and coupled‐variable function. This paper has verified that the stiffness function for all deep‐groove Ball Bearings can be replaced by a back‐propagation neural network (BPNN) which is trained by using some (not all) samples.
Fengcai Wang - One of the best experts on this subject based on the ideXlab platform.
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Torque variations of Ball Bearings based on dynamic model with geometrical imperfections and operating conditions
Tribology International, 2019Co-Authors: Xi Zhang, Wei Chang, Yu Xing, Shiyuan Pei, Fengcai WangAbstract:Abstract A friction torque model of Ball Bearings with geometrical imperfections is proposed, integrating developed models of friction, raceway waviness, and multi-body dynamics. Torque variations consisting of average and fluctuation values for angular contact Ball Bearings due to waviness including linear, nonlinear and multi-orders situation are analyzed in time and frequency domains. The influences of waviness amplitude, load and speed are evaluated. Additionally, the correlation between axial displacement and torque fluctuation of Ball Bearings is discussed, and their spectrum similarity under pure axial load and the relative low-frequency amplitude enhancement of the torque spectrum under combined load are observed. Finally, a torque experiment is carried out on a bearing test apparatus, and the effectiveness of the present model is verified.
T. S. Sankar - One of the best experts on this subject based on the ideXlab platform.
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An Improved Model for Nonplanar Contact Sliding in Ball Bearings
Journal of Tribology, 1994Co-Authors: P. I. Tzenov, T. S. SankarAbstract:This investigation focuses on the contact interaction between a Ball and a torus ring as in Ball Bearings. The sliding velocity yield at the nonplanar contact area is analyzed and the resulting friction force and moment are determined assuming same friction coefficient at any point of the contact area. The results are illustrated by an application case to an angular contact Ball bearing. The procedure developed through an appropriate computer simulation is useful in ascertaining the steady-state motion of a Ball in Ball Bearings, in friction-and-wear test machine, etc
Dong Feng Wang - One of the best experts on this subject based on the ideXlab platform.
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A Study on the Higher-order Waviness Errors in Ball Bearings Based on Vibration Experiments
DEStech Transactions on Computer Science and Engineering, 2018Co-Authors: Liu Wentao, Yun Zhang, Zhi Jing Feng, Dong Feng WangAbstract:This paper made a research on the higher-order waviness errors in Ball Bearings based on vibration experiments. Firstly, to find out the effects of higher-order waviness errors on the vibration of Ball Bearings, two groups of experiments have been done. In the first group, the inner race and outer race of test Bearings had not been processed by superfinishing, while in the second group had been. The measurements of form errors showed that the higher-order waviness errors of the first group were much lower than those of the second group. Then, the vibration levels of the two groups were tested. The results indicated that the effects of higherorder waviness errors on vibration of Ball Bearings are prominent. Therefore, the higher-order waviness errors should be controlled strictly in the manufacturing processes of Ball Bearings. Further, to evaluate the higher-order waviness errors effectively, a new evaluation method was intended to be proposed in this paper. By comparing the waviness error excitation spectra of displacement, velocity and acceleration, it was revealed that the acceleration excitation spectrum is much more effective on distinguishing the magnitudes of higher-order waviness errors. Therefore, the acceleration excitation spectrum is proposed to evaluate the higherorder waviness errors.
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An Experimental Research on the Vibration Reduction of Ball Bearings by Superfinishing Process
Key Engineering Materials, 2016Co-Authors: Wentao Liu, Yun Zhang, Zhi Jing Feng, Dong Feng WangAbstract:An experimental research on the reduction of vibration of Ball Bearings is provided in this paper. The waviness of inner race and outer race are decreased by superfinishing process, and their excitation frequencies are obtained. After the Bearings’ vibration is tested, the powers of vibration distributed in different frequency regions are computed. The results reveal that the waviness excitations have a considerable influence on vibration of Ball Bearings in medium-frequency ranges, and the vibration can be reduced greatly by superfinishing process.
