Mathematical models of hauling rigs' formation

The article is concerned with the problem of logging trucks’ fleet formation for a complete or partial renovation of the existing hauling rigs and formation of the vehicle fleet used for timber removal. Mathematical models substantiating the algorithm of lumber trucks’ fleet formation based on the maintenance costs per car-shift and values of the effective output per shift are developed. Solution algorithm with the use of dynamic programming method is presented. The obtained results will help logging operators to form a park of the hauling rigs with minimal expenses on its maintenance. Special features of the applied technologies used during removal are considered. Practical application of the proposed models will significantly improve technical and economic performance of the logging company