This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency
Annotation ability available
Sector:
Language:
English
Abstract
Cavitation thresholds of 5W30 and 10W30 oils were measured in laboratory experiments using electrically-driven disks of piezoelectric ceramic as sources of mechanical excitation. The technique allows the mechanical-wave power density at which cavitation begins to be observed and calculated from electrical quantities and the volume of the oil sample being tested. Both cavitation turn-on and turn-off thresholds have been measured as functions of temperature and frequency. The temperatures ranged from 20 to 100°C and the frequencies ranged from 50 kHz to 4 MHz. The experiments have shown these oils can be made to undergo cavitation at surprisingly low thresholds.
Recommended Content
| Technical Paper | Strength and Deformation Behavior of Cordierite Substrates from 70° to 2550°F |
| Technical Paper | Ceramic Circuit Technologies for Automotive Electronics Applications |
Authors
Topic
Citation
Meitzler, A. and Shu, B., "Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency," SAE Technical Paper 941984, 1994, https://doi.org/10.4271/941984.Also In
References
- Hosny D. M. et al. “A System Approach for the Assessment of Cavitation Corrosion Damage of Cylinder Liners in Internal Combustion Engines” SAE Paper No. 930581 Engine Coolants. Cooling System Materials, and Components (SP-960) SAE International Congress and Exposition Detroit, MI March 1-5 1993
- Green G. W. Engelstad R. L. “A Technique for the Analysis of Cylinder Liner Vibrations and Cavitation” SAE Paper No. 930582 Engine Coolants, Cooling Systems Materials, and Components (SP-960) SAE International Congress and Exposition Detroit , MI March 1-5 1993
- Zhou Y. K. Hammit F. G. “Cavitation Damage of Diesel Engine Wet-Cylinder Liners” Worldwide Trends in Engine Coolants, Cooling System Materials and Testing (SP-811) SAE Paper No. 900437 1990
- Rastogi A. Gupta R. K. “Effect of Shear Thinning on Cavitation in Lubricant Films” SAE Paper No. 922286 Rheology and Tribology of Engine Oils (SP-936) International Fuels and Lubricants Meeting and Exposition San Francisco, CA Oct. 19-22 1992
- Haas A. Maaszen F. Geiger U. “Oil Aeration in High Speed Combustion Engines” SAE Paper No. 940792 SAE International Congress and Exposition Detroit, MI Feb. 28 Mar. 3 1994
- Brewe D. E. Khonsari M. M. “Effect of Shaft Frequency on Cavitation in a Journal Bearing for Noncentered Circular Whirl” Tribology Transactions 31 1 54 60 1988
- Rac A. “Cavitation Wear Resistance of Engine Bearing Materials” Tribology Transactions 37 2 315 318 1994
- Young F. R. Cavitation McGraw-Hill London 1989
- Apfel R. E. “Acoustic Cavitation Inception” Ultrasonics 22 5 167 173 Sept. 1984
- Leighton T. G. The Acoustic Bubble Academic Press London 1994
- ANSI/IEEE STD 176-1987 IEEE Standard on Piezoelectricity IEEE Customer Service Department
- ASTM Test Method D445-86 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Fluids Annual Book of ASTM Standards 05.01 1993
- ASTM Test Method D341-87 Standard Viscositv-Temperature Charts for Liquid Petroleum Products Annual Book of ASTM Standards 05.01 1993
- Beyer R. T. Letcher S. V. “The Role of Shear Viscosity in the Attenuation of Longitudinal Waves” In Physical Acoustics 359 360 Academic Press New York and London 1969