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Overview of Techniques for Measuring Friction Using Bench Tests and Fired Engines
Technical Paper
2000-01-1780
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents an overview of techniques for measuring friction using bench tests and fired engines. The test methods discussed have been developed to provide efficient, yet realistic, assessments of new component designs, materials, and lubricants for in-cylinder and overall engine applications.
A Cameron-Plint Friction and Wear Tester was modified to permit ring-in-piston-groove movement by the test specimen, and used to evaluate a number of cylinder bore coatings for friction and wear performance. In a second study, it was used to evaluate the energy conserving characteristics of several engine lubricant formulations. Results were consistent with engine and vehicle testing, and were correlated with measured fuel economy performance.
The Instantaneous IMEP Method for measuring in-cylinder frictional forces was extended to higher engine speeds and to modern, low-friction engine designs. A comparison of historical cylinder friction measurements shows reductions of 85% for late model piston /cylinder bore designs. A technique for accurately measuring overall engine friction was developed and used to assess the benefits of friction modifiers with an ability to measure changes in friction less than 1%.
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Noorman, M., Assanis, D., Patterson, D., Tung, S. et al., "Overview of Techniques for Measuring Friction Using Bench Tests and Fired Engines," SAE Technical Paper 2000-01-1780, 2000, https://doi.org/10.4271/2000-01-1780.Also In
References
- Benzing, R. Peterson M. et.al “Friction and Wear Devices,” ASLE Publication Park Ridge, Illinois 1976
- Test Method for Ultra Testing with a Pin-On-Disk Apparatus ASTM PA 1990
- Test Method for Ranking Materials to Sliding Wear Using Block-On-Ring Wear Tester ASTM PA 1983
- United States Steel (USS) Lubrication Engineers Manual Bailey Charles Aarons Joseph 1st 1971
- Patterson, D. Hill, S. Tung S. “Bench Wear Testing of Engine Power Cylinder Components,” ASME Fall Technical Conference Muskegon, Michigan 1991
- Hartfield-Wunsch, S. Tung, S. Rivard C. “Development of a Bench Test for the Evaluation of Engine Cylinder Components and the Correlation with Engine Test Results,” SAE 1993 Transactions 1131 1138 Paper No. 932693 October 15 1993
- Hartfield-Wunsch, S. Tung S. “The Effect of Microstructures on the Wear Behavior of Thermal Sprayed Coatings,” 1994 7th Thermal Spray Conference Proceedings Boston, Massachusetts June 20-24 1994
- Fessenden, K. S. Zurecki, Z. Slavin T. P. “Thermal Sprayed Coatings: Properties, Processes, and Applications” ASM Materials Park Ohio 1991
- Tung, S. Tseregounis S. “An Investigation of Tribological Characteristics of Energy-Conserving Engine Oils Using A Reciprocating Bench Test,” SAE Spring Fuels and Lubricants Conference June 20 2000
- Tseregounis, S. McMillan M. “Engine Oil Effects on Fuel Economy in GM Vehicles - Comparison with the ASTM Sequence VI-A Engine Dynamometer Test,” SAE Paper No. 952347 1995 SAE Fuels and Lubricants Meeting October 16-19 1995
- McGeehan, J. A. “A Literature Review of the Effects of Piston and Ring Friction and Lubricating Oil Properties,” SAE Paper No. 780673 1978
- Furuhama, S. Takiguchi M. “Measurement of Piston Frictional Force in Actual Operating Diesel Engine,” SAE Paper No. 790855 1979
- Furuhama, S. et al. “Effect of Piston and Piston Ring Designs on the Piston Friction Force in Diesel Engines,” SAE Paper No. 810977 1981
- Sherrington, I Smith E. H. “The Measurement of Piston-Ring Friction by the ‘Floating-Liner’ Method,” SAE Paper No. 884707 1988
- Kitahara, T. et al. “Studies on the Characteristics of Piston Ring Friction,” SAE Paper No. 928434 1992
- Uras, H. M. Patterson D. J. “Measurement of Piston and Ring Assembly Friction - Instantaneous IMEP Method,” SAE Paper No. 830416 1983
- Uras, H. M. Patterson D. J. “Effect of Some Lubricant and Engine Variables on Instantaneous Piston and Ring Assembly Friction”,” SAE Paper No. 840178 1984
- Uras, H. M. Patterson D. J. “Oil and Ring Effects on Piston Ring Assembly Friction by the Instantaneous IMEP Method,” SAE Paper No. 850440 1985
- Uras, H. M. Patterson D. J. “Effect of Some Piston Variables on Piston and Ring Assembly Friction,” SAE Paper No. 870088 1987
- Clampitt, G. D. “The Effects of Lightweight Reciprocating Components on Engine Friction, Heat Transfer, and Performance,” Assanis D. N. Advisor University of Illinois May 1991