船用发电机活塞环外工作面受力与润滑仿真  

Simulation of force and lubrication on piston ring outer working face of marine generator

作　　者：闫芳硕 孔祥雨 孟宪松 段树林[1] YAN Fang-shuo;KONG Xiang-yu;MENG Xian-song;DUAN Shu-lin(Marine Engineering College,Dalian Maritime University,Dalian 116026,China;Dalian Marine Diesel Co.,Ltd.,Dalian 116021,China)

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026 [2]大连船用柴油机有限公司,辽宁大连116021

出　　处：《舰船科学技术》2020年第9期125-130,共6页Ship Science and Technology

摘　　要：发电柴油机活塞环主要起到密封、导热、布油、刮油的作用,船用发电柴油机连续运行时间超长,活塞环与缸套的可靠润滑十分重要。本文以4L20船用发电柴油机为研究对象,通过台架试验测量并计算得到了其在1000 r/min不同负荷状态下的运行数据,在Excite pr中建立活塞环-缸套动力学润滑仿真模型,得到了其在运行过程中活塞环的径向受力、外工作面的最小油膜厚度、轴向摩擦损失与不同负荷下活塞环外工作面轴向摩擦损失的变化情况,为船用发电柴油机的运行管理提供参考依据。The piston ring of diesel generator mainly has the functions of sealing,heat conduction,oil make-up,and oil scraper,the continue operation of marine diesel generator is super long,so that it is really important for the reliable lubrication between piston and cylinder liner.In this paper,it takes 4L20 marine diesel generator as research object,by means of the calculation and measurement of bench test,it can get the operating data in different states of loading under 1000 rpm,then,it establishes simulation model of piston ring-cylinder liner dynamic lubrication in Excite pr,and then it gets the piston ring radial force,minimum oil film thickness of the outer working face,axial friction loss power,and change of axial friction loss powers of the outer working face of piston ring under different loads during operation of diesel generator,which can provide theoretical reference for the operation and management of marine diesel generator.

关 键 词：活塞环 径向受力 最小油膜厚度 轴向摩擦损失 

分 类 号：U664.121.2[交通运输工程—船舶及航道工程]