A method of automotive engine life forcasting on the basis of laboratory start- ups test

• Autorzy: Koszałka G. , Niewczas A. , Kordos P.
• Języki publikacji: EN

Abstrakty

EN

The results of previously conducted research shows that in the case of automotive engines wear accompanying engine start-ups has significant contribution to the total wear of cylinder liner. Thus, it was assumed that wear of the liner measured after high number of start-ups can be representative for given conditions of engine operation in the vehicle and can be used to forecast engine life. The paper describes a new method of automotive engine durability prediction on the basis of wear measured after so called start-ups test. The start-ups test consists of series of repeatable cycles during which engine is started-up in precisely established temperature and operates for short time with no load and then is shut down and cooled down. To conduct the new test it is indispensable to obtain data regarding start-up conditions. But these data can be precisely determined on the basis of simple measurements made on any existing engine installed in a vehicle used in expected way. Moreover, the cost of the new test is significantly lower (minimal fuel consumption, engine does not have to be installed on dynamometer stand) and duration is shorter than in the case of standard tests. Considering advantages of the new start-ups test, it can be recommended as a part of the test stand reliability research of automotive engines. The developed method is simple and short and can be a complementary one to existing standard reliability research methods.

Słowa kluczowe

EN

combustion engines; cylinder liner; life estimation; start-ups; wear

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2008
• Tom: Vol. 15, No. 2
• Strony: 207--215
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Koszałka G.

autor

Niewczas A.

autor

Kordos P.

• Lublin University of Technology, Department of Combustion Engines and Transport Nadbystrzycka Street 36, 20-618 Lublin, Poland tel.[phone], fax: [phone],

Bibliografia

• [1] Atkins, R. D., Understanding durability testing, Journal of Kones, Vol. 2, No. 1, pp. 18-28, 1997.
• [2] Czarnigowski, J., Drodziel, P., Kordos, P., Characteristic rotational speed ranges of a crankshaft during combustion engine operation at car maintenance, Maintenance and Reliability, No. 2 (14), pp. 55-62, 2002.
• [3] Drodziel, P., Ignaciuk, P., Kordos, P., Working conditions of the Lublin III delivery truck during its operation, Proceedings of TRANCOM 2003, Zilina (Slovakia), pp. 35-38, 2003.
• [4] Drodziel, P., Ignaciuk, P., Kordos, P., Start - up wear of cylinder liner in an internal combustion engine, Proceedings of TRANCOM 2005, Zilina, pp. 35-38, 2005.
• [5] Mikulin, J. W., Karnickij, W. W., Englin, B. A., Start-ups of cold engines in low temperature, Saint-Petersburg, 1976 (in Russian).
• [6] Naylor, M. G., Kodali, P., Wang, J. C., Diesel engine tribology, in Modern Tribology Handbook, B. Bhushan Ed, CRC Press, pp. 1231-1270, 2001.
• [7] Niewczas, A., Koszaka, G., Drodziel, P., Stochastic model of truck engine wear with regard to discontinuity of operation, Proceedings of the International Symposium on Stochastic Models in Reliability, Safety, Security and Logistics, Beer Sheva (Israel), pp. 253-256, 2005.