Measurement Method for Piston Assembly-Cylinder Friction Force Based on Wireless Transmission in an Internal Combustion Engine

Abstract

Abstract:

The principle of the indicated mean effective pressure (IMEP) method to measure the piston assemblycylinder friction was derived, and the method for calculation of the inertia force of piston assembly and connecting rod was obtained. Then, a reliable transmission of connecting rod stress signal was achieved using wireless transmission method, and piston assemblycylinder friction forces were measured at a range of engine operating speed under motored conditions.

Key words: combustion engine, piston assembly； friction force； indicated mean effective pressure (IMEP)； wireless transmission

CLC Number:

NING Lipu,MENG Xianghui,XIE Youbai. Measurement Method for Piston Assembly-Cylinder Friction Force Based on Wireless Transmission in an Internal Combustion Engine[J]. Journal of Shanghai Jiaotong University, 2014, 48(09): 1297-1302.

References

［1］Richardson D E. Review of power cylinder friction for diesel engines［J］. Journal of Engineering for Gas Turbines and Power, 2000, 122(4): 506519.

［2］谢友柏. 摩擦学科学及工程应用现状与发展战略研究——摩擦学在工业节能、降耗、减排中的地位与作用的调查［M］. 北京: 高等教育出版社, 2009.

［3］Zhu D, Cheng H S, Arai T, et al. A numerical analysis for piston skirt in mixed lubrication—Part I: Basic modeling ［J］. Journal of Tribology, 1992, 114(3): 553562.

［4］Ning L P, Meng X H, Xie Y B. Incorporation of deformation in a lubrication analysis for automotive piston skirtliner system［J］. Journal of Engineering Tribology, 2012, 227(6): 654670.

［5］Bai Dongfang. Modeling piston skirt lubrication in internal combustion engines［D］. USA: Department of Mechanical Engineering, Massachusetts Institute of Technology, 2012.

［6］张执南, 谢友柏. 考虑连杆曲轴变惯性影响的活塞二阶运动分析［J］. 上海交通大学学报, 2010, 44(4): 555559.

ZHANG Zhinan, XIE Youbai. Effects of connecting rodcrankshaft variable inertia on piston secondary motion［J］. Journal of Shanghai Jiaotong University, 2010, 44(4): 555559.

［7］Meng X H, Xie Y B. A new numerical analysis for piston skirtliner system lubrication considering the effects of connecting rod inertia［J］. Tribology International, 2012, 47: 235243.

［8］Charles P, Elfassi M, Lubrecht A A. DoubleNewtonian rheology in a model pistonring cylinderwall contact［J］. Tribology International, 2010, 43(10): 19021907.

［9］Chong W W F, Teodorescu M, Vaughan N D. Cavitation induced starvation for pistonring/liner tribological conjunction［J］. Tribology International, 2011, 44(4): 483497.

［10］Senzer E B. Oil transport inside the oil control ring grove and its interaction with surrounding areas in internal combustion engines［D］. USA: Massachusetts Institute of Technology, 2012.

［11］Mufti R A, Priest M. Experimental evaluation of pistonassembly friction under motored and fired conditions in a gasoline engine［J］. Journal of Tribology, 2005, 127(4): 826836.

［12］张启, 毛军红, 谢友柏. IMEP法测量内燃机活塞组摩擦力的分析计算方法［J］. 内燃机学报, 2007, 25(6): 560564.

ZHANG Qi, MAO Junhong, XIE Youbai. Analysis and calculation of friction of pistonassembly based on IMEP method［J］. Transactions of CSICE, 2007, 25(6): 560564.

［13］Isarai R, Sugino M, Moritsugu M, et al. Strain and motion measurement for piston, piston ring and connecting rod of highspeed running engines using new digital telemeter［R］. New York: SAE Paper, 2008: 10421043.第48卷第9期2014年9月上海交通大学学报JOURNAL OF SHANGHAI JIAO TONG UNIVERSITYVol.48 No.9Sep. 2014

[1]	LIU Xiaori1,2,LI Ming1,ZHANG Tiechen1,ZHENG Qingping1,LI Su1,LI Guoxiang2. Zero Wear of Internal Combustion Engine Sliding Bearing Based on Mixed Thermo-Elastohydrodynamic Lubrication [J]. Journal of Shanghai Jiaotong University, 2017, 51(1): 62-.
[2]	ZHAO Xiuliang,CHENG Yong,WANG Limei. Improvement of SNR of Vibration Response Signal Excited by In-Cylinder Pressure Using Pattern Recognition Method [J]. Journal of Shanghai Jiaotong University, 2015, 49(05): 637-643.
[3]	BAO Tang-tang (包堂堂), ZHOU Bo (周波), DENG Jun (邓俊), WU Zhi-jun* (吴志军). Research on the Physical Property of Diesel-Gasoline Blend Fuel [J]. Journal of shanghai Jiaotong University (Science), 2014, 19(6): 721-727.
[4]	LI Deli,CHEN Xiaoling,WU Jiao,QIN Ping,ZHANG Wugao. Experimental Study of NOx Storage/Reduction Performance of Perovskite Catalysts, with H2 as Reductant [J]. Journal of Shanghai Jiaotong University, 2013, 47(11): 1778-1782.
[5]	ZHANG Zhinan,XIE Youbai. Effects of Connecting RodCrankshaft Variable Inertia on Piston Secondary Motion [J]. Journal of Shanghai Jiaotong University, 2010, 44(04): 555-0559.