Journal ArticleDOI
Friction torque in four-point contact slewing bearings: Applicability and limitations of current analytical formulations
TLDR
In this article, two models for the friction torque calculation are compared: a Finite Element model and the analytical model proposed by Leblanc and Nelias, which assumes that full sliding occurs in the ball-raceway contact, which is demonstrated to be an appropriate simplification for many cases, but not for applications where large tilting moments are involved.About:
This article is published in Tribology International.The article was published on 2017-11-01. It has received 20 citations till now. The article focuses on the topics: Friction torque & Contact mechanics.read more
Citations
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Journal ArticleDOI
Failure prediction, monitoring and diagnosis methods for slewing bearings of large-scale wind turbine: A review
TL;DR: Current situation of researches on wind turbine slewing bearing is summarized systematically and failure prediction, monitoring and diagnosis methods of slewing bearings for industries are reviewed and summarized, which can be potentially used for wind energy industry.
Journal ArticleDOI
Load distribution and friction torque in four-point contact slewing bearings considering manufacturing errors and ring flexibility
TL;DR: A new approach has been proposed for the calculation of the friction torque, which has lower computational cost in comparison to a previous approach by the authors, so more accurate results can be obtained due to refined calculations with no significant cost increase.
Journal ArticleDOI
Multibody dynamics simulation of thin-walled four-point contact ball bearing with interactions of balls, ring raceways and crown-type cage
TL;DR: In this paper, a general methodology for dynamic simulation analysis of the bearing is investigated, considering multi-clearances, dynamic contact and impact relationships of the ball, ring raceway and crown-type cage.
Journal ArticleDOI
Static structural behaviour of wire bearings under axial load: Comparison with conventional bearings and study of design and operational parameters
TL;DR: In this paper, the influence of different parameters on the static structural response of wire bearing stiffness, load capacity and contact status (contact force and angle, and ellipse truncation) have been evaluated for several combinations of conformity, friction coefficient and boundary conditions.
Journal ArticleDOI
A study on the dynamic contact feature of four-contact-point ball bearing
TL;DR: In this article , a four-contact-point ball bearing (FCPBB) with a double half inner ring structure and four raceways was proposed to provide dynamic multi-point contact characteristics in service.
References
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Book
Three-Dimensional Elastic Bodies in Rolling Contact
J. J. Kalker,K. L. Johnson +1 more
TL;DR: In this paper, the basic equations of the linear theory of elasticity and mathematical programming notions of mathematical programming are defined and a numerical calculation of the elastic field in a half-space is presented.
Journal ArticleDOI
Load distribution in a four contact-point slewing bearing
TL;DR: In this article, a four contact-point bearing with one row of ball bearings was discussed under general load conditions (moment, axial load, and radial load) and the load distribution in two contact point rolling elements was calculated.
Journal ArticleDOI
Carrying angle and carrying capacity of a large single row ball bearing as a function of geometry parameters of the rolling contact and the supporting structure stiffness
Samo Zupan,Ivan Prebil +1 more
TL;DR: In this article, the authors show a computation model that allows the correct choice of raceway curvature center shift in the raceway section plane with respect to the rolling element circle.
Journal ArticleDOI
Ball Motion and Sliding Friction in a Four-Contact-Point Ball Bearing
Alexandre Leblanc,Daniel Nelias +1 more
TL;DR: In this article, an analysis of double arched ball bearing, which considers centrifugal forces and gyroscopic effects, is performed based on operating conditions of a five DOF inner ring and Coulomb friction model, the conventional bearing theory is extended from two to three or four contact points.
Related Papers (5)
Methodology for calculating the complete static carrying capacity of twin slewing bearing
Carrying angle and carrying capacity of a large single row ball bearing as a function of geometry parameters of the rolling contact and the supporting structure stiffness
Samo Zupan,Ivan Prebil +1 more