Multi-objective optimization of three-stage running-in process for main bearing of marine diesel engine

IF 2.2 3区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Tribology-transactions of The Asme Pub Date : 2023-04-11 DOI:10.1115/1.4062298

引用次数: 1

Abstract

Running-in quality can be improved by optimizing the running-in parameters (load, speed and running-in time). The relationship between running-in quality and the fractal dimensions of friction signal and wear surface is analyzed. It shows that the larger the fractal dimension, the better the running-in quality. A multi-objective optimization design of the running-in parameters of the main bearing is carried out, using a non-dominated sorting genetic algorithm with elite strategy. The optimization targets are the large fractal dimension of friction coefficient, the large fractal dimension of wear surface, and small running-in time. It shows that the selection principles of running-in parameters are different for different stages and priorities. The optimal running-in parameters listed in this paper provides a specific reference to the optimal design of the three-stage running in of main bearing.

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船用柴油机主轴承三段式磨合过程多目标优化

通过优化磨合参数（负荷、速度和磨合时间），可以提高磨合质量。分析了磨合质量与摩擦信号和磨损表面分形维数之间的关系。结果表明，分形维数越大，磨合质量越好。采用精英策略的非支配排序遗传算法，对主轴承磨合参数进行了多目标优化设计。优化目标是摩擦系数的大分维、磨损表面的大分维数和小磨合时间。结果表明，不同阶段、不同优先级的磨合参数选择原则不同。本文所列的最佳磨合参数，为主轴承三级磨合的优化设计提供了具体参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Tribology-transactions of The Asme 工程技术-工程：机械

CiteScore

4.20

自引率

12.00%

发文量

117

审稿时长

4.1 months

期刊介绍： The Journal of Tribology publishes over 100 outstanding technical articles of permanent interest to the tribology community annually and attracts articles by tribologists from around the world. The journal features a mix of experimental, numerical, and theoretical articles dealing with all aspects of the field. In addition to being of interest to engineers and other scientists doing research in the field, the Journal is also of great importance to engineers who design or use mechanical components such as bearings, gears, seals, magnetic recording heads and disks, or prosthetic joints, or who are involved with manufacturing processes. Scope: Friction and wear; Fluid film lubrication; Elastohydrodynamic lubrication; Surface properties and characterization; Contact mechanics; Magnetic recordings; Tribological systems; Seals; Bearing design and technology; Gears; Metalworking; Lubricants; Artificial joints