焦博文，王福鑫，马旋，卢熙群，李彤阳.低速二冲程柴油机活塞环-缸套润滑模型及相关软件开发[J].内燃机工程,2020,41(6):107-115.
低速二冲程柴油机活塞环-缸套润滑模型及相关软件开发
Piston Ring-Cylinder Liner Lubrication Model and Related Software Development for Low-Speed Two Stroke Marine Diesel Engines
DOI：10.13949/j.cnki.nrjgc.2020.06.014
关键词:低速机  活塞环-缸套  润滑模型  供油策略
Key Words:low-speed marine engine  piston ring-cylinder liner  lubrication model  oil supply strategy
基金项目:船用低速机工程（一期）研制（工信部联装函[2017]21号）
作者单位
焦博文，王福鑫，马旋，卢熙群，李彤阳 1.哈尔滨工程大学 动力与能源工程学院，哈尔滨 150001
 2.中国科学院兰州化学物理研究所 固体润滑国家重点实验室，兰州 730000 
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摘要:在传统润滑模型基础上，将活塞环润滑特性、活塞环动力学、滑油输送、活塞环窜气、几何结构参数、缸套变形、固体颗粒等多种因素进行耦合，建立一个专门为低速二冲程船用柴油机结构和供油方式设计的供油润滑模型，并对活塞环间窜气及缸套表面特有的表面织构与油槽结构进行了研究。结果表明，低速柴油机活塞环在整个行程中跨越动压润滑，混合润滑和边界润滑3个区域，这使润滑油的供给条件及固体磨粒的存在直接影响着活塞环-缸套摩擦副的润滑状态。
Abstract:Based on the traditional lubrication model, many factors such as piston ring lubrication characteristics, piston ring dynamics, lubricant transport, piston ring blow-by, geometric structure parameters, cylinder liner deformation and solid abrasive particle were coupled to establish an oil supply lubrication model specially designed for the structure and oil supply of low speed two stroke marine diesel engines, and the blow-by between piston rings and the unique surface texture and oil groove structure of cylinder liner were studied. Results show that the piston ring of low-speed marine diesel engines spans the three areas of dynamic lubrication, mixed lubrication and boundary lubrication over the stroke, which makes the supply conditions of lubricating oil and the presence of solid abrasive particles directly affect the lubrication state of piston ring-cylinder liner tribo-pair.
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