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Aerodynamic Effects of an Overtaking Articulated Heavy Goods Vehicle on Car-Trailer-An Analysis to Improve Controllability
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English
Abstract
It is well known and a common experience among drivers that controllability and stability of a car-trailer combination is affected when an articulated Heavy Goods Vehicle overtakes.
In this paper, aerodynamic effects to a car-trailer combination when it is overtaken by an articulated HGV, have been analyzed experimentally using 1/20 scale models in wind tunnel, and a method to suppress this phenomenon has been investigated.
The dynamic behaivor of a car-trailer combination is simulated by a simple mathematical model.
The result shows that a car-trailer combination can be stable following the addittion of aerodynamic devices to each side of the vehicle.
This simulated result is verified by the on-read test.
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Citation
Kobayashi, N. and Sasaki, Y., "Aerodynamic Effects of an Overtaking Articulated Heavy Goods Vehicle on Car-Trailer-An Analysis to Improve Controllability," SAE Technical Paper 871919, 1987, https://doi.org/10.4271/871919.Also In
References
- Heffley Robert K. “Aerodynamics of Passenger Vehicle in Close Ploximity to Truck and Bus” SAE Paper, 730235
- Ellis J. R. “Vehicle Dynamics” London Business Books Limited
- weir David H. Ringland Robert F. Heffley Robert K. Ashkenas Irving L. “An Experimental and Analytical Investigation of the Effect of Truck-Induced Aerodynamic Disturbances on Passenger Car Control and Perfomance” Report No. FHWA-RD-71-3 Federal Highway Administration Office of Research