Abstract
Weigh-in-motion (WIM) systems are used for identifying the dynamic force exerted on the ground by axles of a vehicle. These systems are important for monitoring the gross vehicle weight and the vehicle axle load. Overweighted trucks on the roads increase pavement damage and traffic accidents. Knowing the accuracy of WIM systems is necessary. In the case of liquid transport the ‘sloshing effect’ affects this accuracy. This paper aims to analyze the dynamic measurement of the axle forces in vehicles carrying liquid during WIM up to 6 km h−1. Laboratory experiments using one vehicle with six axles and liquid loads on different levels in weighing instruments are presented. A non-linear computational multi-mass-springs model was developed and laboratory experiments were carried out to show the acceleration influences on axle forces of vehicles with six axles and with and without baffles to vary the ‘sloshing effect’.
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