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: 2025
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(.): optimization, mathematical programming, distribution problem, fuzzy number, aircraft, airlines
: () . , . , . , , . . , . IBM ILOG OPL . 蠫 , .
(.): A variant of the problem of optimal assignment of aircraft of specified types and numbers on a given airline network has been solved. The distribution of aircraft by airline is one of the key problems determining the efficiency of an air transport company. The considered task is to determine for each airline the weekly number of aircraft flights, which ensures the maximum economic effect of passenger transportation. The novelty of the problem statement lies in the fact that the levels of demand for passenger transportation are not fully defined expertly set fuzzy values, which corresponds to the stage of preliminary schedule design. Optimization of aircraft assignment by airlines is formulated as an integer mathematical programming problem with a fuzzy criterion and clear constraints. Thanks to the use of the defuzzification technique, the fuzzy problem is reduced to an ordinary mathematical programming problem solved by the available effective methods based on accessible software. Using the IBM ILOG OPL software package, the solution of model examples of the problem in fuzzy and "crisp" formulations was obtained. The comparison revealed significant differences between the most significant results of solving the optimization problem in fuzzy and "crisp" formulations, which indicates the expediency of taking into account the fuzzy uncertainty of the initial data.
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