Design Optimization of Crankshaft Bearing Based on Crankshaft-Bearing System

2016-01-1388

04/05/2016

Event
SAE 2016 World Congress and Exhibition
Authors Abstract
Content
In current design optimization of engine crankshaft bearing, only the crankshaft bearing is considered as the studying object. However, the corresponding relations of major structure dimensions exist between the crankshaft and the crankshaft bearing in engine, and there are the interaction effects between the crankshaft and the crankshaft bearing during the operation of engine. In this paper, the crankshaft-bearing system of a four-cylinder engine is considered as the studying object, the multi-objective design optimization of crankshaft bearing is developed. The crankshaft mass and the total frictional power loss of crankshaft bearings are selected as the objective functions in the design optimization of crankshaft bearing. The Particle Swarm Optimization algorithm is used in the optimization calculation. The optimization results are compared to the ones of original engine design and the single-objective design optimization of crankshaft bearing. The results show that the total frictional power loss of crankshaft bearing and the crankshaft mass are decreased respectively by 26.2% and 5.3% by the multi-objective design optimization of crankshaft bearing, which are more reasonable than the ones of single-objective design optimization in which only the crankshaft bearing is considered as the studying object.
Meta TagsDetails
DOI
https://doi.org/10.4271/2016-01-1388
Pages
6
Citation
Huang, B., Sun, J., Wang, H., Zhao, X. et al., "Design Optimization of Crankshaft Bearing Based on Crankshaft-Bearing System," SAE Technical Paper 2016-01-1388, 2016, https://doi.org/10.4271/2016-01-1388.
Additional Details
Publisher
Published
Apr 5, 2016
Product Code
2016-01-1388
Content Type
Technical Paper
Language
English