This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Characterizing the Effect of Automotive Torque Converter Design Parameters on the Onset of Cavitation at Stall
Technical Paper
2007-01-2231
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper details a study of the effects of multiple torque converter design and operating point parameters on the resistance of the converter to cavitation during vehicle launch. The onset of cavitation is determined by an identifiable change in the noise radiating from the converter during operation, when the collapse of cavitation bubbles becomes detectable by nearfield acoustical measurement instrumentation. An automated torque converter dynamometer test cell was developed to perform these studies, and special converter test fixturing is utilized to isolate the test unit from outside disturbances. A standard speed sweep test schedule is utilized, and an analytical technique for identifying the onset of cavitation from acoustical measurement is derived. Effects of torque converter diameter, torus dimensions, and pump and stator blade designs are determined.
Recommended Content
Authors
Citation
Robinette, D., Anderson, C., Blough, J., Johnson, M. et al., "Characterizing the Effect of Automotive Torque Converter Design Parameters on the Onset of Cavitation at Stall," SAE Technical Paper 2007-01-2231, 2007, https://doi.org/10.4271/2007-01-2231.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
- Arakeri, V. H. Acosta, A. J. “Viscous Effects in the Inception of Cavitation on Axisymmetric Bodies,” ASME Journal of Fluids Engineering 95 519 527 1973
- Arakeri, V.H. Milton, S.G. Sharma, S.D. “Role of Unsteady Pressure Fields in Cavitation Inception,” ASME, Annual Winter Meeting, 2 nd International Symposium on Cavitation Inception 69 73 New Orleans, LA 1984
- Franc, J.P. Michel, J.M. “Attached Cavitation and the Boundary Layer: Experimental Investigation and Numerical Treatment,” Journal of Fluid Mechanics 154 63 90 1985
- Laberteaux, K.R. Ceccio, S.L. “Partial Cavity Flows: Part 1: Cavities Forming on Models without Spanwise Variation,” Journal of Fluid Mechanics 431 1 41 2001
- Brennen, C. E. Cavitation and Bubble Dynamics Oxford University Press 1995
- Knapp, R. T. Daily, J. W. Hammit, F. G. Cavitation Engineering Societies Monographs McGraw Hill 1970
- By, R.R. Lakshminarayana, B. “Static Pressure Measurement in a Torque Converter Stator,” SAE, 911934 1991
- Schweitzer J. Gandham, J. “Computational Fluid Dynamics in Torque Converters: Validation and Application,” International Journal of Rotating Machinery 9 411 418 2003
- Wantanabe, H. Yoshida, K. Yamada, M. Kojima, M. “Flow Visualization and Measurement in the Stator of a Torque Converter,” JSAE Review 17 25 30 1996
- Shin S. Kim, K. Kim, D. Joo, I. Hong, J. Jang, Y. “The Effect of Reactor Blade Geometry on the Performance of an Automotive Torque Converter,” SAE, 2002-01-0885 2002
- Dong Y. Korivi, V. Attibele, P. Yuan, Y. “Torque Converter CFD Engineering Part II: Performance Improvement through Core Leakage and Cavitation Control,” SAE 2002-01-0884 2002
- Anderson, C.L. Zeng, L. Sweger, P.O. Narain, A. Blough, J.R. “Experimental Investigation of Cavitation Signatures in an Automotive Torque Converter using a Microwave Telemetry Technique,” 9 th ISROMAC Honolulu, HI Feb. 2002
- Mekkes, J. Anderson C. L. Narain, A. “Static Pressure Measurements on the Nose of a Torque Converter Stator during Cavitation,” 10th ISROMAC Honolulu, HI March 2004
- Farhat, M. Guennoun, F. Avellan, F. “The Leading Edge Cavitation Dynamics,” Proc. ASME FEDSM Montreal 2002
- Guennoun, F. Farhat, M. Bouziad, Y. A. Avellan, F “Experimental Investigation of a Particular Traveling Bubble Cavitation,” 5 th International Symposium on Cavitation Osaka 2003
- Kowalski, D. Anderson, C.L. Blough, J. R. “Cavitation Detection in Automotive Torque Converters using Nearfield Acoustical Measurements,” SAE Transactions 114 2796 2804 2005
- Blake, W. K. Wolpert, M.J. Geib, F.E. “Cavitation Noise and Inception as Influenced by Boundary Layer Development on a Hydrofoil,” Journal of Fluid Mechanics 80 617 640 1977
- Ball J. W. Tullis, J. P. “Cavitation in Butterfly Valve,” ASCE, Journal of the Hydraulics Division 99 1303 1318 1973
- Strasberg, M. Taylor, D. “Propeller Cavitation Noise After 35 Years of Study,” Noise and Fluids Engineering 1977
- Courbiere, P. “An Acoustical Method for Characterizing the Onset of Cavitation in Nozzles and Pumps,” ASME, Annual Winter Meeting, 2 nd International Symposium on Cavitation Inception 69 73 New Orleans, LA 1984
- McNulty, J.P. Pearsall, I. S. “Cavitation Inception in Pumps,” AMSE Journal of Fluids Engineering 104 99 104 1982