典型文献
Analysis of fretting wear behavior of unloading valve of gasoline direct injection high-pressure pump
文献摘要:
The high pressures in gasoline direct injection technology lead to structural damage in some hydraulic components, especially annular damage on the contact area of the valve ball and on the valve seat of the spherical unloading valve in the high-pressure pump. In previous study, the authors have analyzed the damage on the unloading valve and demonstrated that it is caused neither by static damage nor fatigue damage and have put forward the hypothesis of fretting wear. This paper is based on the establishment of the statically indeterminate structure of the unloading valve. The micro friction parameters (stress, friction coefficient, etc.) required for the numerical iterative calculation of fretting wear are calculated. In addition, based on the grid adaptive technology and a modified Archard wear model, the fretting wear is calculated quantitatively and is in good agreement with experimental results. Based on that verification, the wear laws of the valve ball and valve seat under the same hardness, different contact angles, and different assembly stresses, are analyzed in detail, and reasoned suggestions for the structural design and assembly design of the ball valve are given.
文献关键词:
中图分类号:
作者姓名:
Liang LU;Yin-peng XU;Meng-ru LI;Qi-long XUE;Man-yi ZHANG;Liang-liang LIU;Zhong-yu WU
作者机构:
School of Mechanical Engineering,Tongji University,Shanghai 201804,China;State Key Laboratory of Fluid Power&Mechatronic Systems,Zhejiang University,Hangzhou 310027,China;Frontiers Science Center for Intelligent Autonomous Systems,Shanghai 201210,China;United Automotive Electronic Systems Co.,Ltd.,Shanghai 200120,China
文献出处:
引用格式:
[1]Liang LU;Yin-peng XU;Meng-ru LI;Qi-long XUE;Man-yi ZHANG;Liang-liang LIU;Zhong-yu WU-.Analysis of fretting wear behavior of unloading valve of gasoline direct injection high-pressure pump)[J].浙江大学学报(英文版)(A辑:应用物理和工程),2022(04):314-328
A类:
reasoned
B类:
Analysis,fretting,wear,behavior,unloading,valve,gasoline,direct,injection,high,pump,pressures,technology,lead,structural,damage,some,hydraulic,components,especially,annular,contact,area,ball,seat,spherical,In,previous,study,authors,have,analyzed,demonstrated,that,caused,neither,by,nor,fatigue,put,forward,hypothesis,This,paper,establishment,statically,indeterminate,structure,micro,friction,parameters,coefficient,etc,required,numerical,iterative,calculation,calculated,addition,grid,adaptive,modified,Archard,model,quantitatively,good,agreement,experimental,results,Based,verification,laws,under,same,hardness,different,angles,assembly,stresses,detail,suggestions,design,given
AB值:
0.489051
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