ДОСЛІДЖЕННЯ ПАРАМЕТРІВ СКЛАДСЬКИХ КОМПЛЕКСІВ З ВИКОРИСТАННЯМ МЕРЕЖ ПЕТРІ

The purpose. In modern conditions, the task of improving systems for storing material stocks has significant scientific and practical significance. At the same time, the nature and degree of influence of the parameters of the incoming flow of goods on the required technical equipment of warehouses from the standpoint of logistics and a systematic approach have been insufficiently studied. The absence of a final solution to the problem of developing a universal methodology for determining rational technical and technological parameters of warehouses for packaged goods formulated the goal of the study, which is to determine the rational equipment of a warehouse complex on the basis of simulation modeling of the process of its functioning, formalized by a Petri net. Methodology. In the work, the authors present a methodology for formalizing the process of functioning of a transport and warehouse complex using a Petri net in the QPNet environment. The technique of technical and economic comparison of options for equipping a warehouse complex, which is based on the use of modified reduced costs, is presented. Results. The paper reviews the existing imitation models of warehouse complexes, identifies their advantages and disadvantages. On the basis of the analysis performed, a simulation system was determined for the development of a model of a warehouse complex. The article presents a universal method for determining the rational technical and technological parameters of warehouses for packaged goods using a simulation model of a warehouse, the technological process of which is represented by a Petri net. With the developed simulation model of the composition, a series of experiments were performed, differing in the operational conditions of operation, as a result of which a set of technical and operational indicators of the warehouse complex was obtained. The obtained indicators of the warehouse functioning became the basis for determining its rational technical equipment. The practical significance of the methodology presented in the work for constructing a universal model of a warehouse complex and a technical and economic assessment of the indicators of its functioning will make it possible to more accurately determine the rational number of technical means and technical equipment in the design of new or reconstruction of existing transport and warehouse complexes.