This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Model of the Friction Losses in Diesel Engines
Technical Paper
2006-01-0888
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A general purpose engine friction model, based on lubrication theory was developed and is presented in this paper. The model takes into account the friction components of the complete ring pack, piston skirt, main/connecting rod bearings and valve train mechanism.
Using the developed model, it is possible to predict the complete engine friction (either in crank angle resolution or in engine cycle resolution (Friction Mean Effective Pressure, FMEP), the trajectory of moving components (e.g. piston secondary motion, journal movements in bearings, piston rings motion towards cylinder liner), the pressure field developed by the lubricant.
The model was used with data from a four-stroke medium speed marine diesel engine installed in the National Technical University of Athens/Laboratory of Marine Engineering test-bed. The effect of engine speed and engine load on predicted frictional losses was examined and compared with results obtained from other semi-empirical FMEP models.
Recommended Content
Technical Paper | Friction Losses in Multi-Cylinder Diesel Engines |
Technical Paper | Novel Conceptual Approaches for Improvements in Compression Ratio for Diesel Engines |
Technical Paper | Side-Load Capacity of an Unlubricated Ringless Piston |
Authors
Citation
Livanos, G. and Kyrtatos, N., "A Model of the Friction Losses in Diesel Engines," SAE Technical Paper 2006-01-0888, 2006, https://doi.org/10.4271/2006-01-0888.Also In
References
- McAulay, K. J. Wu, T. Chen, S. K. Borman, G. L. Myers, P. S. Uyehara, O. A. Development and Evaluation of the Simulation of the Compression-Ignition Engine SAE paper 650451 1965 560 589
- Millington, B. W. Hartles, E. R. Frictional Losses in Diesel Engines SAE paper 680590 1968 2390 2410
- Winterbone, D.E. Tennant, D.W.H. The Variation of Friction and Combustion Rates during Diesel Engine Transients SAE paper 810339 1981
- Thiele, E. Determination Frictional Losses in Internal Combustion Engines 1982 43 253 258
- Rezeka, S. F. Henein, N.A. A New Approach to Evaluate Instantaneous Friction and its Components in Internal Combustion Engines SAE paper 840179 1984 1932 1943
- Zweiri, Y.H. Whidborne, J.F. Seneviratne, L.D. Instantaneous Friction Components Model for Transient Engine Operation Proc Instn Mech Engrs 214 2000
- Goenka, P.K. Paranjpe R.S. Jeng, Y.R. FLARE: An Integrated Software Package for Friction and Lubrication Analysis of Automotive Engines - Part I: Overview and Applications SAE paper 920487 1992 47 55
- Richardson, D. E. Review of Power Cylinder Friction for Diesel Engines Transactions of the ASME 122 2000
- Norling, R.L. Continuous Time Simulation of Forces and Motion within an Automotive Engine SAE paper 780665 1978
- Shiao, Y. Moskwa, J.J. An Investigation of Load Force and Dynamic Error Magnitude Using the Lumped Mass Connecting Rod Model SAE paper 930617 1993 837 846
- Priest, M. Dowson, D. Taylor, C.M. Theoretical Modelling of Cavitation in Piston Ring Lubrication Proc Instn Mech Engrs 214 2000
- Jeng, Y-R Theoretical Analysis of Piston-Ring Lubrication Part I - Fully Flooded Lubrication STLE Tribology Transactions 35 696 705 1992
- Jeng, Y-R Theoretical Analysis of Piston-Ring Lubrication Part II - Starved Lubrication and Its Application to a Complete Ring Pack STLE Tribology Transactions 35 707 714 1992
- Greenwood, J. A. Tripp, J. H. The contact of two nominally flat rough surfaces Proc. Instn Mech. Engrs. 185 625 633 1971
- Hu, Y. Cheng, H. S. Arai, T. Kobayashi, Y. Aoyama, S. Numerical Simulation of Piston Ring in Mixed Lubrication - A Nonaxisymmetrical Analysis Journal of Tribology 116 470 478 1994
- Booker, J. F. Basic Equations for Fluid Film with Variable Properties ASME Journal of Tribology 111 3 475 483 1989
- Keribar, R. Dursunkaya, Z. A Comprehensive Model of Piston Skirt Lubrication SAE paper 920483 844 852 1992
- Wong, V.W. Tian, T. Lang, H. Ryan, J. P. Sekiya, Y. Kobayashi, Y. Aoyama, S. A Numerical Model of Piston Secondary Motion and Piston Slap in Partially Flooded Elastohydrodynamic Skirt Lubrication SAE paper 940696 81 95 1994
- Zhu, D. Cheng, H.S. Arai, T. Hamai, K. A Numerical Analysis for Piston Skirts in Mixed Lubrication - Part I: Basic Modeling Journal of Tribology 114 553 562 July 1992
- Prata, A. T. Fernandes, J. R. S. Fagotti, F. Dynamic Analysis of Piston Secondary Motion for Small Reciprocating Compressors Transactions of the ASME 122 752 760 October 2000
- Fantino, B. Frene, J. Comparison of Dynamic Behavior of Elastic Connecting Rod Bearing in Both Petrol and Diesel Engines Journal of Tribology 107 87 91 1985
- Hirani, H. Athre, K. Biswas, S. Dynamically Loaded Finite Length Journal Bearings: Analytical Method of Solution Transactions of the ASME 121 844 852 1999
- Goenka, P.K. Dynamically Loaded Journal Bearings: Finite Element Method Analysis Journal of Tribology 106 429 439 1984
- Kim, B-J Kim, K-W Thermo-Elastohydrodynamic Analysis of Connecting Rod Bearing in Internal Combustion Engine Transactions of the ASME 123 444 454 2001
- Booker, J. F. Dynamically Loaded Journal Bearings: Mobility Method of Solution ASME Journal of Basic Engineering 537 546 1965
- MAN B&W Project Guide for Marine GenSets L16/24 4 January 1999