Braking characteristics of a tractor-tank-semitrailer vehicle is investigated by incorporating the influence of liquid load shift occurring within the partially filled tank. The tank vehicle model is developed by integrating a steady state model of a partially filled tank and a pitch plane model of the vehicle. The liquid load shift occurring in the pitch plane of the vehicle during a braking maneuver is characterized using the change in the gradient of the free surface of liquid and the corresponding shift in the center of gravity of the fluid bulk. The change in normal load on the various axles of the vehicle during the maneuver is then computed to analyze the braking behaviour of the partially filled tank vehicle. The braking characteristics of the tank vehicle are then compared to those of an equivalent rigid cargo vehicle in order to study the impact of liquid load shift. Influence of various vehicle and tank design parameters on the braking behaviour and wheel lock-up condition is also investigated for typical braking maneuvers.
Impact of liquid load shift on the braking characteristics of partially filled tank vehicles
Auswirkung der Flüssigkeitslastverschiebung auf die Bremseigenschaften von teilgefüllten Tankfahrzeugen
Vehicle System Dynamics ; 26 , 3 ; 223-240
1996
18 Seiten, 10 Bilder, 15 Quellen
Aufsatz (Zeitschrift)
Englisch
Tankfahrzeug , Tankfahrzeugbehälter , Bremsvorgang , Flüssigkeitsstand , räumliche Bewegung , Längsrichtung , Sattelzugmaschine , mathematisches Modell , Integralgleichung , Vektor , Zustandsgleichung , Gradient , Oberfläche , Schwerpunkt , Auslegung (Dimension) , Konstruktionsdaten , Fahrdynamik , Variable , Luftreifen , Reibbeiwert , Wirkungsgrad , Achslast
Impact of Liquid Load Shift on the Braking Characteristics of Partially Filled Tank Vehicles
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