In the paper the authors present an experimental method of determining the aerodynamic drag acting on a vehicle, from measurements of forces at the wheels taken as they pass over one or more force-measuring plates. The advantage of the method is in the aerodynamically ideal conditions encountered on the road as opposed to in the wind tunnel, and in the fact that balancing the forces at the wheels on the road may give precious information during development of the vehicle dynamics. To understand these difficulties, a theoretical model was set up. Then the authors carried out tests with an instrumented XM V6 vehicle on the road at the Monthlery test center and at the Ladoux CER Michelin, so that the relative importanc eof the different variables expressed in the model could be estimated.
Correlation of Full-Scale Wind Tunnel and Road Measurements of Aerodynamic Forces (Correlation des Efforts Aerodynamiques Mesures sur Piste et en Soufflerie)
1991
17 pages
Report
No indication
English
Road Transportation , Reciprocation & Rotating Combustion Engines , Aerodynamics , Drag , Motor vehicles , Tests , Wheels , Roads , Measurement , Force , Dynamics , Wind pressure , Comparison , Wind tunnels , Moments , Correlation techniques , Diagrams , Mathematical models , Foreign technology , Vehicle wheel , Acceleration(Physics) , Translations
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