Multi-objective optimization design of wheel hub bearings based on Kriging-NSGA-II

In order to achieve the design objectives of high stiffness, low friction power consumption, and long service life for wheel hub bearings, this study proposes an enhanced mechanics model based on the traditional Jones-Harris model that improves its convergence. Furthermore, a novel multi-objective o...

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Bibliographic Details
Published inJournal of mechanical science and technology Vol. 38; no. 3; pp. 1341 - 1353
Main Authors Qiu, Ming, Zhang, Jiaming, Wang, Huijie, Yang, Chuanmeng, Tang, Yibo, Zhang, Peinan
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Mechanical Engineers 01.03.2024
Springer Nature B.V
대한기계학회
Subjects
Algorithms
Bearings
Contact stresses
Control
Design optimization
Dynamic loads
Dynamical Systems
Engineering
Fatigue life
Friction
Industrial and Production Engineering
Load
Mechanical Engineering
Mechanics (physics)
Multiple objective analysis
Optimization
Original Article
Power consumption
Service life
Stiffness
Vibration
기계공학
Hub bearing
NSGA-II
Angular stiffness
Kriging model
Frictional power consumption
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Summary:In order to achieve the design objectives of high stiffness, low friction power consumption, and long service life for wheel hub bearings, this study proposes an enhanced mechanics model based on the traditional Jones-Harris model that improves its convergence. Furthermore, a novel multi-objective optimization method is introduced by combining the Kriging model with NSGA-II algorithm in conjunction with the improved mechanics model. The optimization aims to maximize angular stiffness while minimizing friction power consumption and maximizing rated dynamic load. Structural optimization design of hub bearing is carried out using this approach which significantly enhances computational efficiency of multi-objective optimization for hub bearings. After optimization, angular stiffness increases by 21.2 %, friction power consumption decreases by 5.1 %, and rated dynamic load increases by 3.8 %. These results successfully meet the design goals of high rated dynamic load, low friction power consumption and high stiffness for hub bearing, respectively. Additionally, maximum contact load reduces by 18.1 % whereas maximum contact stress decreases by 5.3 % after optimizing which ultimately leads to extended fatigue life of bearing.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-024-0129-6