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엔진 내구시험 시 링 외주면 및 그루브 마모에 관한 연구

A Study on Ring Face and Groove Wear during Engine Durability Test


Ring and groove wear may not be a problem in most current automotive engines. However, a small change in ring face and groove geometry can significantly affect the lubrication characteristics and ring axial motion. This in turn can cause to change inter-ring pressure, blow-by and oil consumption in an engine. Therefore, by predicting the wear of piston ring face, ring groove and cylinder bore altogether, the changed ring end gap and the changed volume of gas reservoir can be calculated. Then the excessive oil consumption can be predicted. Being based on the calculation of gas flow amount by the theory of piston ring dynamics and gas flow, and the calculation of oil film thickness and friction force by the analysis of piston ring lubrication, the calculation theory of oil amount through top ring gap into combustion chamber will be set. This is estimated as engine oil consumption. Furthermore, the wear theories of ring, groove and cylinder bore are included. Then the each amount of wear is to be obtained. The changed oil consumption caused by the new end gap and the new volume of oil reservoir around second land, can be calculated at some engine running interval. Meanwhile, the wear amount and oil consumption occurred during engine durability cycle are compared with the calculated values. Next, the calculated amount of oil consumption and wear are compared with the guideline of each part's wear and oil consumption. So, the timing of part repair and engine life cycle can be predicted in advance without performing engine durability test. The wear data of rings and grooves are obtained from three engines before and after engine durability test. The calculated wear data of each part are turn out to be at the lower bound of aver-aged test values or a little below.

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참고문헌 (12)

  1. S. D. Gulwadi, 'Analysis of Tribological Performance of a Piston Ring Pack,' Tribology Transactions, Vol. 43, No.2, pp. 151-162, 2000 
  2. T. H. C. Childs and F. Sabbagh, 'Boundary-Lubricated Wear of Cast Irons to Simulate Automotive Piston Ring Wear Rates,' Wear, Vol. 134, p. 81, 1989 
  3. J. A. Greenwood and J. H. Tripp, 'The Contact of Two Nominally Flat Rough Surface,' Proc. ImechE, Vol. 185, pp. 625-633, 1971 
  4. A. D. Sarkar, 'Wear of Metals,' Pergamon Press, Oxford, 1986 
  5. N. C. Wallbridge and D. Dowson, 'Distribution of Wear Rate Data and a Statistical Approach to Sliding Wear Theory,' Wear, Vol. 119, p.295, 1987 
  6. N. P. Suh and N. Saka, 'Fundamentals of Tribology,' The MIT Press, Cambridge, Massachusetts, 1978 
  7. Y. Wang, G. Chen and G. Jiao, 'Wear Prediction for Unlubricated Piston Rings,' Wear, Vol. 135, p. 227, 1990 
  8. H. J. Verbeek, 'Tribogical Systems and Wear Factors,' Wear, Vol. 56, p. 81, 1979 
  9. E. W. Schneider, D. H. Blossfeld and M. A. Balnaves, 'Effect of Speed and Power Output on Piston Ring Wear in a Diesel Engine,' SAE Trans. 880672, 1988 
  10. S. M. Chun, 'A Study on Engine Oil Consumption,' Journal of the KSTLE, Vol. 21, No.6, pp. 296-301, 2005 
  11. S. M. Chun, 'A Basic Study on Piston-Ring Pack,' Journal of the KSTLE, Vol. 21, No.2, pp. 83-92, 2005 
  12. Y. Chung, S. M. Chun, S. 1. Kim and L. J. Brombolich, 'Adhesive Wear Model of Piston Ring for a Diesel Engine,' Proceedings on 1994 KSAE Fall Conference, KSAE 943885, pp. 56-67, 1994 

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