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Aerodynamic Effects of Passing Vehicles
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Sector:
Event:
Fleet Week
Language:
English
Abstract
This paper describes an investigation that was undertaken to evaluate the lateral forces and moments produced on a vehicle with large, flat lateral faces when it is passing or being passed by a large vehicle in an adjacent traffic lane. The forces and moments were determined from tests that were conducted in the University of Tennessee subsonic wind tunnel. They were, then, input to a computerized vehicle model to find the resulting dynamic response of the vehicle. These forces and moments were sufficiently strong to produce a significant lateral deviation from the desired path of the vehicle. Resulting from this investigation, several recommendations were made to improve highway safety.
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Authors
Citation
Johnson, W., Speckhart, F., and Bridwell, R., "Aerodynamic Effects of Passing Vehicles," SAE Technical Paper 730687, 1973, https://doi.org/10.4271/730687.Also In
References
- Gross D. S. Sekscienski W. S. “Some Problems Concerning Wind Tunnel Testing of Automotive Vehicles.” SAE Transactions 75 1967 paper 660385
- Weir D. H. Ringland R. F. Heffley R. K. Ashkenas I. L. “An Experimental and Analytical Investigation of the Effect of Truck-Induced Aerodynamic Disturbances on Passenger Car Control and Performance.” Report No. FHWA-RD-71-3 Federal Highway Administration October 1971
- Speckhart F. H. “A Computer Simulation for Three-Dimensional Vehicle Dynamics.” National Highway Safety Administration Jan. 10 1972
- Iacovoni D. H. “Vehicle-Driver Simulation for a CrossWind Disturbance Condition.” SAE Transactions 76 paper 670609
- McHenry R. R. Deleys N. J. CAL Report VJ-2251=V-7 August 1970
- Rasmussen R. E. Hill F. W. Riede P. M. General Motors Proving Ground Report A-2542 April 1970