柴油机气缸套的起动磨损分析  

Wear Analysis of Diesel Engine Cylinder Liner under Start Conditons

作　　者：邓志明[1] 张红涛[1] 朱海庆[1] 刘桃生 刘和平 

机构地区：[1]海军蚌埠士官学校机电系安徽蚌埠230012 [2]石家庄机械化步兵学校河北石家庄050000

出　　处：《润滑与密封》2012年第12期86-88,95,共4页Lubrication Engineering

基　　金：十一五国防预研项目(4010103010401)

摘　　要：将柴油机的连续起动过程分解为4个相对稳定的阶段,建立其起动模型;基于Archard黏着磨损模型和缸套-活塞环的润滑分析,建立柴油机气缸套磨损模型;将起动模型和磨损模型结合起来,采用MATLAB进行仿真分析。以PA6-280柴油机为例,仿真计算得到冷机起动和热机起动下气缸套的磨损分布图。结果表明,冷机起动的磨损量明显大于热机起动,尤其是在上止点附近位置,冷机起动1次比热机起动10次的磨损量还要多。Dividing the continuous starting process into four relatively stable stages, a starting model of diesel was established. Based on Archard adhesive wear model and lubrication analysis of cylinder liner-piston ring, a wear model of diesel cylinder was set up. Combining starting model with wear model, simulation analysis was conducted with MATLAB. Taking PA6-280 diesel engine for an example, the wear map of cylinder liner on cold start state and heat start state were obtained by simulation calculation with established simulation model. The results show that the wear of cold starting is significantly greater than that of heat starting, and especially near the upper dead point, the wear of cold starting equals more than 10 times to heat starting.

关 键 词：柴油机 气缸套 冷机起动 热机起动 黏着磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]