Multi-objective optimization design of engine crankshaft bearing. Issue 1 (8th February 2016)

• Record Type: Journal Article
• Authors: Sun, Jun; Shu, Lei; Song, Xianhao; Liu, Guangsheng; Xu, Feng; Miao, Enming; Xu, Zhihao; Zhang, Zheng; Zhao, Junwei
• Is Part Of: Industrial lubrication and tribology. Volume 68:Issue 1(2016)
• Page Start: 86
• Page End: 91
• Publication Date: 2016-02-08
• Subjects: Design -- Optimization -- Bearings -- Multi-objective -- Optimization design -- Engine components -- Engine crankshaft-bearing -- Internal combustion engine -- Crankshaft-bearing system; Lubrication and lubricants -- Periodicals; Tribology -- Periodicals; 621.89
• DOI: 10.1108/ILT-03-2015-0040
• Languages: English
• ISSNs: 0036-8792

Abstract

Abstract : Purpose: – This paper aims to use the crankshaft-bearing system of a four-cylinder internal combustion engine as the studying object, and develop a multi-objective optimization design of the crankshaft-bearing. In the current optimization design of engine crankshaft-bearing, only the crankshaft-bearing was considered as the studying object. However, the corresponding relations of major structure dimensions exist between the crankshaft and the crankshaft-bearing in internal combustion engine, and there are the interaction effects between the crankshaft and the crankshaft-bearing during the operation of internal combustion engine. Design/methodology/approach: – The crankshaft mass and the total frictional power loss of crankshaft-bearing s are selected as the objective functions in the optimization design of crankshaft-bearing. The Particle Swarm Optimization algorithm based on the idea of decreasing strategy of inertia weight with the exponential type is used in the optimization calculation. Findings: – The total frictional power loss of crankshaft-bearing and the crankshaft mass are decreased, respectively, by 26.2 and 5.3 per cent by the multi-objective optimization design of crankshaft-bearing, which are more reasonable than the ones of single-objective optimization design in which only the crankshaft-bearing is considered as the studying object. Originality/value: – The crankshaft-bearing system of a four-cylinder internal combustion engine is taken as the studying object, and the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system is developed. The results of this paper are helpful to the design of the crankshaft-bearing for engine. There is universal significance to research the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system. The research method of the multi-objective optimization design of crankshaft-bearing based on the crankshaft-bearing system can be used to the optimization design of the bearing in the shaft-bearing system of ordinary machinery.