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Design optimization of an angular contact ball bearing for the main shaft of a grinder

Title
Design optimization of an angular contact ball bearing for the main shaft of a grinder
Author
최동훈
Keywords
Angular contact ball bearing; Multi-objective discrete optimization; Quasi-static analysis; Grinder
Issue Date
2016-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
MECHANISM AND MACHINE THEORY, v. 104, Page. 287-302
Abstract
A conventional trial and error approach toward the design of non-standard bearings takes a significant amount of time to obtain an adequate design. In this study, a non-standard angular contact ball bearing for the main shaft of a grinder was optimized using design automation and optimization techniques. To manufacture a product as precisely as possible with a grinder, the radial and axial stiffness values of the grinder bearing must be selected as objective functions. To treat two objective functions, this study employed a global criterion method as a multi-objective optimization methodology. Eight constraints on the manufacturing, film thickness, friction, and fatigue life were imposed. Six geometric variables and an axial preload were selected as design variables. All design variables were regarded as discrete because they should have manufacture-possible dimensions. Quasi-static analysis taking dynamic effects into account was employed to analyze bearing performance. For efficient discrete optimization, this study proposed a hybrid method in which a micro-genetic algorithm and regression-based sequential approximate optimizer were both employed. Optimization results revealed that both stiffness values were enhanced while satisfying all design constraints. (C) 2016 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0094114X16301112?via%3Dihubhttp://hdl.handle.net/20.500.11754/30444
ISSN
0094-114X
DOI
10.1016/j.mechmachtheory.2016.06.006
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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