Abstract
Purpose
The purpose of this paper is to find a new logarithmic profile model of cylindrical roller bearing, which is expected to avoid edge effect and allow a straight portion on the roller considering uniform pressure distribution and easier manufacturing.
Design/methodology/approach
A new logarithmic cylindrical roller profile model using three parameters is proposed. Contact model between roller and rings and quasi-static model of roller bearing are given to obtain contact pressure distribution and solved by multi-grid and Newton–Raphson method. Optimization of modified reference rating life model of the roller bearing is proposed by using genetic algorithms.
Findings
Under heavy load or tilting moment conditions, modified reference rating life of cylindrical roller bearing may increase greatly by optimization of three design parameters using the new logarithmic profile model.
Originality/value
The results of the present paper could aid in the design of logarithmic profile of cylindrical roller bearing and increase fatigue life of cylindrical roller bearing.
Keywords
Acknowledgements
This work was financially supported by Shanghai Natural Science Foundation (No. 14ZR1416800), Shanghai Alliance Plan (No. LM201408) and Foundation of Shanghai Second Polytechnic University (EGD14XQD12).
Citation
Cui, L. and He, Y. (2015), "A new logarithmic profile model and optimization design of cylindrical roller bearing", Industrial Lubrication and Tribology, Vol. 67 No. 5, pp. 498-508. https://doi.org/10.1108/ILT-01-2015-0006
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited