重庆大学学报2017，Vol.40Issue(1)：1-10,10.DOI:10.11835/j.issn.1000-582X.2017.01.001
机体弹性变形对主轴承润滑特性的影响
Effects of engine block elastic deformation on the lubrication characteristics of main bearings
摘要
Abstract
To investigate the effect of the engine block elastic deformation on the lubrication characteristics of main bearings, a multi-flexible body dynamic model was developed with considering the elastic deformation of the whole engine block and crankshaft.Coupled with the generalized Reynolds equation and Greenwood/Tripp contact model based on the mass conserving boundary condition, the lubrication performances of main bearings were obtained.The results show that when the block elastic deformation is taken into account,the variation trend of the lubrication characteristics are coincident with that without considering the deformation of the engine block;the average of outflow and the total friction power loss show little difference,at the same time,the minimum oil film thickness,the peak oil film pressure and the peak asperity contact pressure have significant variation at certain times of an operating cycle.关键词
机体/弹性变形/主轴承/弹性流体动力润滑Key words
engine block/elastic deformation/main bearing/elasto-hydrodynamic lubrication分类
机械制造引用本文复制引用
阮登芳,高真超,许金霞,谢翌..机体弹性变形对主轴承润滑特性的影响[J].重庆大学学报,2017,40(1):1-10,10.基金项目
重庆市基础与前沿研究计划资助项目（CSTC2013JCYJA00020）。Supported by Foundation and Advanced Research Project of Chongqing （CSTC2013JCYJA00020）． （）
