The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Jiawei Cao - One of the best experts on this subject based on the ideXlab platform.
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Determination of the precise static Load-Carrying Capacity of pitch bearings based on static models considering clearance
International Journal of Mechanical Sciences, 2015Co-Authors: Yanshuang Wang, Jiawei CaoAbstract:Abstract Static models for a single row and a double row four-point contact pitch bearing, taking into account the clearances therein, were presented. A precise computation method was proposed for the static Load-Carrying Capacity curves of such pitch bearings, which can be used to pre-select pitch bearings and slewing bearings supposing rigid bearing rings. The effects on the static Load-Carrying Capacity induced by changing the clearance, the raceway groove radius of curvature, and initial contact angle were analysed. The clearance has a significant effect on the static Load-Carrying Capacity of the bearing only in Load cases with a rather small axial force and a large tilting moment. When the coefficient of raceway groove curvature radius increases, the static Load-Carrying Capacity decreases. The smaller the radial Load, the more significant the effect of the coefficient of raceway groove curvature radius on the static Load-Carrying Capacity of the bearing. When radial Loads range from 0 to 800 kN, the Load-Carrying Capacity increases with increasing initial contact angle. When the radial Loads are above 800 kN, the Load-Carrying Capacity decreases with increasing initial contact angle.
Yanshuang Wang - One of the best experts on this subject based on the ideXlab platform.
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Determination of the precise static Load-Carrying Capacity of pitch bearings based on static models considering clearance
International Journal of Mechanical Sciences, 2015Co-Authors: Yanshuang Wang, Jiawei CaoAbstract:Abstract Static models for a single row and a double row four-point contact pitch bearing, taking into account the clearances therein, were presented. A precise computation method was proposed for the static Load-Carrying Capacity curves of such pitch bearings, which can be used to pre-select pitch bearings and slewing bearings supposing rigid bearing rings. The effects on the static Load-Carrying Capacity induced by changing the clearance, the raceway groove radius of curvature, and initial contact angle were analysed. The clearance has a significant effect on the static Load-Carrying Capacity of the bearing only in Load cases with a rather small axial force and a large tilting moment. When the coefficient of raceway groove curvature radius increases, the static Load-Carrying Capacity decreases. The smaller the radial Load, the more significant the effect of the coefficient of raceway groove curvature radius on the static Load-Carrying Capacity of the bearing. When radial Loads range from 0 to 800 kN, the Load-Carrying Capacity increases with increasing initial contact angle. When the radial Loads are above 800 kN, the Load-Carrying Capacity decreases with increasing initial contact angle.
Shaogan Ye - One of the best experts on this subject based on the ideXlab platform.
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study on the Load Carrying Capacity of surface textured slipper bearing of axial piston pump
Applied Mathematical Modelling, 2020Co-Authors: Shaogan Ye, Hesheng Tang, Jiawei XiangAbstract:Abstract To introduce the elastohydrodynamic lubrication effect caused by the pressure distribution under a surface-textured slipper, the slipper's Load-Carrying Capacity is studied. An elastohydrodynamic model was established to analyse the Load-Carrying Capacity at different rotational speeds and Load pressures. The comprehensive effects of tilting angle, area density, dimple depth to diameter ratio, and operating conditions are investigated. The results indicate that the optimum film thickness with the maximum stiffness coefficient can be obtained by adjusting the rotational speed, but the Load-Carrying Capacity is slightly lower than that of a rigid surface considering the textured-surface deformation. The Load-Carrying Capacity enhancement of a textured-surface slipper bearing is obvious at the optimum tilting angle, but the maximal Load-Carrying Capacity becomes lower at a higher tilting angle. A textured slipper with an area density and a dimple depth to diameter ratio of 24% and 0.3, respectively, can generate a high Load-Carrying Capacity under an elastohydrodynamic lubrication condition.
Wuguo Zhang - One of the best experts on this subject based on the ideXlab platform.
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EMEIT - Effects of key factors on Load-Carrying Capacity of radial static air bearing
Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011Co-Authors: Mingde Duan, Wuguo ZhangAbstract:Based on the momentum conservation equation and conservation equation, the analysis model is established for a radial static bearing lubricated by the air in composite spindle. The finite element model of the radial static bearing is built by using the finite element software, and the simulation analysis is carried out. The effects of eccentricity, orifice diameter, supply pressure and rotational speed on the Load-Carrying Capacity are simulated and analyzed under different boundary conditions. The results show the Load-Carrying Capacity increase with the increase of the eccentricity and supply pressure. There is an optimal orifice diameter for the largest Load-Carrying Capacity under the invariable air membrane thickness. Due to the increase of dynamic pressure effect, the Load-Carrying Capacity increase with the increase of rotational speed. These results are helpful to designing the optimal radial static bearing.
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Effects of key factors on Load-Carrying Capacity of radial static air bearing
Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011Co-Authors: Mingde Duan, Wuguo ZhangAbstract:Based on the momentum conservation equation and conservation equation, the analysis model is established for a radial static bearing lubricated by the air in composite spindle. The finite element model of the radial static bearing is built by using the finite element software, and the simulation analysis is carried out. The effects of eccentricity, orifice diameter, supply pressure and rotational speed on the Load-Carrying Capacity are simulated and analyzed under different boundary conditions. The results show the Load-Carrying Capacity increase with the increase of the eccentricity and supply pressure. There is an optimal orifice diameter for the largest Load-Carrying Capacity under the invariable air membrane thickness. Due to the increase of dynamic pressure effect, the Load-Carrying Capacity increase with the increase of rotational speed. These results are helpful to designing the optimal radial static bearing.
Xinbo Wang - One of the best experts on this subject based on the ideXlab platform.
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Load Carrying Capacity of misaligned hydrodynamic water-lubricated plain journal bearings with rigid bush materials
Tribology International, 2016Co-Authors: Xiuli Zhang, Gengyuan Gao, Zhongwei Yin, Yanzhen Wang, Dan Jiang, Xinbo WangAbstract:This paper analyzes the ultimate hydrodynamic Load Carrying Capacity of water-lubricated plain journal bearings with rigid bush materials under misalignment effect, aiming to help designers find appropriate design parameters. The relationships between the ultimate Load Carrying Capacity and the misalignment angle for bearings with different relative clearances, different length-to-diameter ratios are gained. Bearings with different diameters and different rotational speeds are also studied to determine how the ultimate hydrodynamic Load Carrying Capacity changes with diameter and rotational speed. Finally, a method is provided for determining the appropriate radial clearance and length of misaligned water-lubricated rigid plain journal bearings.
