高原环境重型车辆柴油机缸内机油消耗仿真研究
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摘要
针对某重型车辆柴油机高原环境下缸内机油消耗增大的问题,在综合分析了缸内油膜蒸发消耗率、梯形环泵油消耗率、梯形环刮油消耗率和梯形环开口间隙窜油消耗率的基础上,建立了缸内机油消耗数值仿真模型并计入柴油机工况、海拔以及油环技术状况的影响,分析了高原环境条件下柴油机缸内机油消耗规律,为分析缸套-活塞环的摩擦磨损性能奠定了基础。
Aiming at the problem of increasing oil consumption in cylinder of a heavy vehicle diesel engine in plateau environment,a numerical simulation model of oil consumption is established based on the comprehensive analysis of the oil film evaporation rate in the cylinder,the trapezoidal ring pump oil consumption rate,the trapezoidal ring scraping oil consumption rate and the trapezoidal ring opening clearance oil consumption rate. Considering the influence of diesel engine working conditions,altitude and oil ring technical conditions,the oil consumption law in cylinder of diesel engine in plateau environment conditions is analyzed,which lays a foundation for analyzing the friction and wear performance of cylinder liner-piston ring.
Aiming at the problem of increasing oil consumption in cylinder of a heavy vehicle diesel engine in plateau environment,a numerical simulation model of oil consumption is established based on the comprehensive analysis of the oil film evaporation rate in the cylinder,the trapezoidal ring pump oil consumption rate,the trapezoidal ring scraping oil consumption rate and the trapezoidal ring opening clearance oil consumption rate. Considering the influence of diesel engine working conditions,altitude and oil ring technical conditions,the oil consumption law in cylinder of diesel engine in plateau environment conditions is analyzed,which lays a foundation for analyzing the friction and wear performance of cylinder liner-piston ring.
引文
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[12]刘建敏.装甲车辆柴油机技术状态评价与预测方法研究[D].北京:装甲兵工程学院,2006:110-113.
[13]ZHANG J,PIAO Z,DENG L,et al.Influence of pin assembly on the wear behavior of piston skirt[J].Engineering failure analysis,2018,89(6):28-36.
[2]谈建,王斌,左承基.汽油机机油消耗量的试验与分析[J].内燃机与动力装置,2006,95(5):4-7.
[3]仲志全,李华宇,尹琪.发动机运行工况对机油耗影响的试验研究[J].内燃机工程,2004,11(5):69-71.
[4]仲志全,尹琪,张光辉,等.发动机缸内机油消耗途径及影响因素分析[J].车用发动机,2003,22(6):16-18.
[5]景国玺,郝志勇,杨骥.活塞环组机油消耗分析及改进设计[J].浙江大学学报(工学版),2011,45(11):2002-2007.
[6]ZABALA B,IGARTUA A,FERNANDEZ X,et al.Friction and wear of a piston ring/cylinder liner at the top dead centre:Experimental study and modelling[J].Tribology international,2017,106(2):23-33.
[7]王宪成,张更云,韩树,等.车用内燃机学[M].北京:兵器工业出版社,2006:46-47.
[8]尹琪.柴油机润滑油消耗与理论分析[M].上海:上海交通大学出版社,1999:109-112.
[9]根茨布尔克.活塞环理论[M].北京:中国铁道出版社,1981:65-66.
[10]JOHANSSON S,OHLSSON R.Experimental friction evaluation of cylinder liner/piston ring contact[J].Wear,2011,78(271):625-633.
[11]袁善勇.基于数值仿真的高原环境装甲车辆发动机冷却系统性能研究[D].北京:装甲兵工程学院,2012:90-92.
[12]刘建敏.装甲车辆柴油机技术状态评价与预测方法研究[D].北京:装甲兵工程学院,2006:110-113.
[13]ZHANG J,PIAO Z,DENG L,et al.Influence of pin assembly on the wear behavior of piston skirt[J].Engineering failure analysis,2018,89(6):28-36.