Potaman N. Choosing rational quantity of components in supply chain of trade cargoes by automobile transport in interregional communication

Aims and research tasks. The aim of the given research work is to minimize expenses on delivery of trade cargoes in supply chains by automobile transport in interregional communication. To achieve the aim it is necessary to solve the following tasks: -to analyze existing models and methods of projecting of goods delivery system;- to work out a mathematical model of the given expenses on goods delivery in supply chain; - to analyze influence of a chain length on the given expenses for supply; - to determine main indicators of supply chain and their influence on an optimal length of goods supply chain; - to work out a method of determining a rational length of supply chain; - to practically check economic efficiency of the proposed method. Research object is a process of goods delivery in supply chains. Research subject is an influence of supply chain length on the given expenses for goods delivery. Research methods. By studying of structure and elements of goods supply system there were applied methods of system analysis. To formalize the research object there was used a mathematic instrument of operational research. Mathematic modeling was applied by studying of internal parameters and external factors influence on efficiency of goods supply system. To define rules of supply volume distribution to an ultimate consumer there were applied methods of probability theory and mathematical statistics. Dependence of optimal supply chain length, given expenses for goods delivery on indicators of supply system was determined on the basis of theoretical methods of optimal experiment planning. Methods of functional analysis were applied for the analysis of influence indicators of supply system on delivery expenses for one tone of products. Scientific novelty of received results. In the present research work there was solved an actual science-applied task - to increase an efficiency of trade cargoes supply by automobile transport in interregional communication by optimizing its chain. For the first time: - examination of supply chain as an element of products delivery system allowed both to determine and formalize all interconnections between its elements and also to consider usage of warehouse system as a stream forming element in products supply chain; - there was proposed to take into account influence of transport technologies on concentration level of material stream by calculation of expenses on advancement of material stream. There was improved a mathematical model of definition of optimal supply chain length on the basis of criteria for common given expenses on products delivery. Practical importance of the received results consists of development of methods for defining optimal supply chain length on the basis of minimization of given expenses on delivery of one tone of products. Results of the present research work can be given to owners of logistic chains, developed models and methods can be applied for defining of final quantity of intermediate products supply chain sections. Practical importance of the received results is confirmed by acts of implementation at the enterprise Ukr Agro Service Co. LTD, Kharkov.