车辆柴油机缸套动载荷磨损计算模型研究
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摘要
为实现车辆柴油机缸套动载荷磨损的数值仿真计算,基于大修柴油机缸套表面形貌分析,确定并提出了缸套动载荷磨损的模式与简化机理;结合Archard黏着磨损模型和二体磨粒磨损模型,推导了动载荷磨损深度的一般表达式;利用缸套试件磨损试验数据,采用响应面拟合法建立磨损系数中的参数与载荷参数的数值关系,并通过两组缸套动载荷磨损试验对磨损计算模型进行了验证。实测与计算结果对比表明,磨损质量最大计算误差为6.15%,模型具有可靠的精度。
In order to realize the numerical simulation on wear of diesel engine cylinder liner under dynamic load,the model and simplified mechanism of dynamic wear of cylinder liner are determined and presented based on the analysis of surface morphology of cylinder liner in overhaul diesel engine. A common expression of wearing depth is derived based on Archard adhesive wear model and two-body abrasive wear model. The response surface model is used to establish the numerical relationship between wear coefficient and dynamic load by analyzing the wear experimental data. The wear calculation model is verified by two groups of wear experiments under alternate loads. The test calculated results show that the maximum calculation error of wear mass is 6. 15%,and the proposed model has reliable accuracy.
In order to realize the numerical simulation on wear of diesel engine cylinder liner under dynamic load,the model and simplified mechanism of dynamic wear of cylinder liner are determined and presented based on the analysis of surface morphology of cylinder liner in overhaul diesel engine. A common expression of wearing depth is derived based on Archard adhesive wear model and two-body abrasive wear model. The response surface model is used to establish the numerical relationship between wear coefficient and dynamic load by analyzing the wear experimental data. The wear calculation model is verified by two groups of wear experiments under alternate loads. The test calculated results show that the maximum calculation error of wear mass is 6. 15%,and the proposed model has reliable accuracy.
引文
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[10]王艳,周仲荣.TC4合金冲击磨损性能与机制的研究[J].润滑与密封,2009,34(6):1-4.WANG Yan,ZHOU Zhong-rong.An investigation of impact wear and wear mechanism of TC4 alloy[J].Lubrication Engineering,2009,34(6):1-4.(in Chinese)
[11]姜振喜,孙杰,李国超,等.TC4铣削加工的刀具磨损与切削力和振动关系研究[J].兵工学报,2015,36(1):144-150.JIANG Zhen-xi,SUN Jie,LI Guo-chao,et al.Investigation on the relationship among tool wear,cutting force and vibration in milling of TC4[J].Acta Armamentarii,2015,36(1):144-150.(in Chinese)
[12]杨绍卿,王宪成,赵文柱.柴油机实车缸套磨损快速计算模型设计[J].装甲兵工程学院学报,2015,29(3):41-46.YANG Shao-qing,WANG Xian-cheng,ZHAO Wen-zhu.Design of fast calculation model of diesel engine cylinder liner wear on vehicle[J].Journal of Academy of Armored Force Engineering,2015,29(3):41-46.(in Chinese)
[2]刘峰璧,谢友柏.二体磨损动态过程的数学模型[M].西安:西安交通大学,1995:303-305.LIU Feng-bi,XIE You-bo.The mathematical model of dynamic two-body abrasion process[M].Xi'an:Xi'an Jiaotong University,1995:303-305.(in Chinese)
[3]Parreira J G,Gallo C A,Costa H L.New advances on maskless electrochemical texturing(MECT)for tribological purposes[J].Surface and Coating Technology,2015,212:1-13.
[4]温诗铸,黄平.摩擦学原理[M].北京:清华大学出版社,2008:296-298.WEN Shi-zhu,HUANG Ping.Principles of tribology[M].Beijing:Tsinghua University Press,2008:296-298.(in Chinese)
[5]Kohashi K,Kimura Y,Mulakami M,et al.Analysis of piston friction in internal combustion engine[J].SAE International Journal of Fuels Lubrication,2016,6(3):589-593.
[6]Jensen M F,Bottiger J,Reitz H H,et al.Simulation of wear characteristics of engine cylinders[J].Wear,2002,253(9/10):1044-1056.
[7]Hu Y Z,Li N,Tonder K.A dynamic system model for lubricated sliding wear and running-in[J].Journal of Tribology,1991,113(3):499-505.
[8]李奇,王宪成,何星,等.高功率密度柴油机缸套-活塞环摩擦副磨损失效机理[J].中国表面工程,2012,25(4):36-41.LI Qi,WANG Xian-cheng,HE Xing,et al.Mechanism of cylinder liner piston ring friction pair wear on high power density diesel engine[J].China Surface Engineering,2012,25(4):36-41.(in Chinese)
[9]王宪成,何星,胡俊彪,等.车辆发动机缸套-活塞环磨损试验研究[J].车用发动机,2013(3):61-64.WANG Xian-cheng,HE Xing,HU Jun-biao,et al.Experimental research on cylinder and piston ring's wear condition in vehicle engine[J].Vehicle Engine,2013(3):61-64.(in Chinese)
[10]王艳,周仲荣.TC4合金冲击磨损性能与机制的研究[J].润滑与密封,2009,34(6):1-4.WANG Yan,ZHOU Zhong-rong.An investigation of impact wear and wear mechanism of TC4 alloy[J].Lubrication Engineering,2009,34(6):1-4.(in Chinese)
[11]姜振喜,孙杰,李国超,等.TC4铣削加工的刀具磨损与切削力和振动关系研究[J].兵工学报,2015,36(1):144-150.JIANG Zhen-xi,SUN Jie,LI Guo-chao,et al.Investigation on the relationship among tool wear,cutting force and vibration in milling of TC4[J].Acta Armamentarii,2015,36(1):144-150.(in Chinese)
[12]杨绍卿,王宪成,赵文柱.柴油机实车缸套磨损快速计算模型设计[J].装甲兵工程学院学报,2015,29(3):41-46.YANG Shao-qing,WANG Xian-cheng,ZHAO Wen-zhu.Design of fast calculation model of diesel engine cylinder liner wear on vehicle[J].Journal of Academy of Armored Force Engineering,2015,29(3):41-46.(in Chinese)