Experimental study of piston scuffing effect on engine performance parameters
الموضوعات : فصلنامه شبیه سازی و تحلیل تکنولوژی های نوین در مهندسی مکانیکسید اشکان موسویان 1 , غلامحسن نجفی 2 , برات قبادیان 3 , سید مصطفی آقا میرسلیم 4 , سید محمد جعفری 5 , مجتبی محرابی وقار 6
1 - دانشجوی دورة دکتری، مهندسی مکانیک بیوسیستم، دانشگاه تربیت مدرس
2 - استادیار، مهندسی مکانیک بیوسیستم، دانشگاه تربیت مدرس
3 - دانشیار، مهندسی مکانیک بیوسیستم، دانشگاه تربیت مدرس
4 - استادیار، دانشکده مکانیک ، دانشگاه امیرکبیر و شرکت تحقیق، طراحی و تولید موتور ایران‌خودرو (ایپکو
5 - کارشناس، شرکت تحقیق، طراحی و تولید موتور ایران خودرو (ایپکو
6 - کارشناس، شرکت تحقیق، طراحی و تولید موتور ایران‌خودرو (ایپکو)
الکلمات المفتاحية: Piston scuffing, internal combustion engine, engine performance parameters, Piston scuffing test,
ملخص المقالة :
Piston scuffing is one of the destructive faults in internal combustion (IC) engines. There are different causes to make this fault that lack of lubricant is the most important one among them. The purpose of this paper is the quantitative study of the piston scuffing effects on the engine performance parameters which is a new research direction in the IC engine filed. For this reason, several engine parameters such as rotational speed, engine torque, engine power, blow-by flow rate and crankcase pressure were measured during a designed piston scuffing test. Results showed that the fault caused the rotational speed, the torque and the engine power to reduce more than 100 rpm, 25 N.m and 16 KW, respectively. In addition with the effects of the piston scuffing on the above parameters, a great and instant increase occurred in the blow-by flow rate, crankcase pressure.
[1] Piston Damages—Recognizing and Rectifying, MSI Motor Service International, 2004.
[2] Ye Z., Zhang C., Wang Y., Cheng H.S., Tung S., Wang Q.J., He X., An experimental investigation of piston skirt scuffing: a piston scuffing apparatus, experiments, and scuffing mechanism analyses, Wear, 257, 2004, pp. 8-31.
[3] Wang Y., Yao C., Barber G.C., Zhou B., Zou, Q., Scuffing resistance of coated piston skirts run against cylinder bores, Wear, 259, 2005, pp. 1041-1047.
[4] Cho D.H., Lee S.A., Lee Y.Z., The effects of surface roughness and coatings on the tribological behavior of the surfaces of a piston skirt, Tribology Transactions, 53, 2009, pp. 137-144.
[5] Singh O., Umbarkar Y., Sreenivasulu T., Vetrivendan E., Kannan M., Babu Y.R., Piston seizure investigation: Experiments, modeling and future challenges, Engineering Failure Analysis, 28, 2013, pp. 302-310.
[6] Dyson A., Scuffing-a review, Tribology International, 8, 1975, pp. 77-87.
[7] Conference on Lubrication and Wear, Proceedings of the Institution of Mechanical Engineers, London, 1957.
[8] Dyson A., The failure of elastohydrodynamic lubrication of circumferentially ground discs, Proceedings of the Institution of Mechanical Engineers, 190, 1976, pp. 699-711.
[9] Rohatgi P., Pai B., Effect of microstructure and mechanical properties on the seizure resistance of cast aluminium alloys, Wear, 28, 1974, pp. 353-367.
[10] Block H., Theoretical study of temperature rise at surface of actually contact under oiliness lubricating conditions, 1937, 222-235, in Proceedings of the General Discussion on Lubrication and Lubricants, London, England.
[11] Lee S., Cheng H., Scuffing theory modeling and experimental correlations, Journal of Tribology, 113, 1991, pp. 327-334.
[12] Shen M., Cheng H.S., Stair P.C., Scuffing failure in heavily loaded slow speed conformal sliding contacts, Journal of Tribology, 113, 1991, pp. 182-191.
[13] Cocks M., Interaction of sliding metal surfaces, Journal of Applied Physics, 33, 1962, pp. 2152-2161.
[14] Reddy A.S., Bai B.N., Murthy K.S.S., Biswas S.K., Wear and seizure of binary Al-Si alloys, Wear, 171, 1994, pp. 115-127.
[15] Reddy A.S., Bai B.N., Murthy K.S.S., Biswas S.K., Mechanism of seizure of aluminium-silicon alloys dry sliding against steel, Wear, 181, 1995, pp. 658-667.
[16] He X., Experimental and Analytical Investigation of the Seizure Process in Al-Si Alloy/Steel Tribocontacts, Northwestern University, 1998.
[17] Jang J.H., Joo B.D., Lee J.H., Moon Y.H., Effect of hardness of the piston ring coating on the wear characteristics of rubbing surfaces, Metals and Materials International, 15, 2009, pp. 903-908.
[18] Nikas G., Sayles, R., Effects of debris particles in sliding/rolling elastohydrodynamic contacts, Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 212, 1998, pp. 333-343.
[19] FEV Test Procedure, Hot Piston Scuff Test, FEV company.
[20] جعفری س، مهدیقلی ه، بهزاد م، تشخیص عیب سایش سمبه با استفاده از روش انتشار صدا، فصلنامه علمی-پژوهشی تحقیقات موتور، شمارة 24، سال 1390، جلد 24، صفحات 21-28.
[21] موسویان ا، نجفی غ، قبادیان ب، جعفری س ، خزایی م، بررسی دقت پارامتر نرخ گازهای نشتی محفظة لنگ در تشخیص عیب سایش پیستون، هشتمین همایش بین المللی موتورهای درونسوز و نفت، تهران، ایران، سال 1392.
