Road-vehicle-load interactions for transport of fruit and vegetables

Transport systems for fruit and vegetables can be evaluated on the basis of acceptable damage limits so that a trade-off between the cost of protection and the cost of damage can be made. This paper reviews the literature on transportation damage and on the modelling of the dynamic response of vehicles. The basic mechanisms operating in transport are described and a model of the road-vehicle-load system for multilayered loads is proposed. The role of energy and its dissipation within the vehicle-load system is emphasised. Acceleration measurements to define a shock environment are shown to have limited use for multi-layered loads. The model of the road-vehicle-load interaction should prove useful in extending the prediction of bridge and road dynamic loads to the more general case when load and vehicle interact.

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