Results 1 to 10 of about 47,286 (166)
Metals, 2019 In metalworking, rolling is a metal-forming process in which slab is passed through one or more pairs of the rolling dies to reduce the thickness and to make the thickness uniform. Modeling of rolling die contact with the slab primarily needs to describe
Mesay Alemu Tolcha, Holm Altenbach
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RUDN Journal of Engineering Research, 2022 The study is devoted to the determination of the coefficients of the degree of contact of rolling surfaces, considering the tolerance field of rolling bodies, as well as the influence of the coefficients of the degree of contact on the maximum contact ...
Yuriy V. Belousov +2 more
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A Study on Ball-Race Contact in Angular Contact Ball Bearing during Rotation [PDF]
한국정밀공학회지, 2021 Angular contact ball bearings (ACBBs) are widely used in rotating machinery due to their heavy load-carrying capacity and excellent accuracy in high-speed operation.
Gilbert Rivera +2 more
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Finite Element of Static Contact between Rolling Element and Raceway of Cageless Ball Bearing
Journal of Harbin University of Science and Technology, 2022 At present, scholars at home and abroad have paid attention to the improvement of bearing capacity and lightweight due to the removal of cage, but the theoretical research on rolling element contact is less.The principle of adding local variable speed ...
ZHAO Yan-ling +3 more
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Dynamics Modeling and Analysis of Rolling Bearings Variable Stiffness System with Local Faults
Machines, 2023 By analyzing the support of load-carrying rolling elements when the rolling elements fall into the fault position, the dynamics model of a rolling bearing variable stiffness system with local faults is proposed, considering the retention factor of the ...
Baoliang Guo +4 more
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Applied Sciences, 2022 The change in contact state between the rolling elements and raceway of a cageless bearing with a variable diameter raceway affect the wear of the bearing, which leads to discrete motion failure of the rolling elements.
Qiyu Wang, Yanling Zhao, Mingzhu Wang
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Structural design and magnetic field analysis on magnetic fluid lubricated bearings
The Journal of Engineering, 2022 A structural model of a bearing is proposed based on a general standard bearing structure and magneto‐fluidic lubrication, and the magnetic field of the bearing lubrication gap is analyzed under the action of an applied magnetic source. Results show that
Ao Wang, Jiabao Pan, Jin Ye, Huaibiao Wu
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Lubricants, 2022 In a three-dimensional transient simulation of the elastic–plastic rolling contact, transient effects can be observed at the beginning of the rolling until a stationary state is reached after rolling for a length of several times the contact radius.
Michael Juettner +3 more
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Parameters of roll contact curves of two-roll modules
Modern Innovations, Systems and Technologies, 2022 Analytical dependencies were obtained to calculate the lengths of roll contact curves, the lengths of the slip and no-slip zones, and angles that determine the position of the separation points of these zones. It was revealed that the slip zones asymptotically decrease to zero with an increase in the angle of inclination of the material to the line of ...
K. Turgunov, N. Annaev, K. Aliboev
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Applied Sciences, 2021 The aim of this work is to characterize the rolling and rolling-sliding contact fatigue failure mechanisms on the 32CrMoV13 nitrided steel. During rolling contact fatigue tests (RCF), two general features were observed: specimens presenting short lives ...
Luís Coelho +3 more
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