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STRUCTURAL OPTIMIZATION OF PIPELINE SYSTEMS DURING THEIR DESIGN AND RECONSTRUCTION

ABSTRACT The study considers peculiarities of structural optimization of pipeline transport systems that help to ensure the required level of their resistance to development of the process of progressive blocking of nodes. It is shown that the highest level of resistance of network structures to consistently increasing risks of damage is achieved in systems with the largest composition of the subset G1 (source to consumer links), under the condition of high valence of the source node of the target product. The valence of an individual system node is a number of pipelines converging into it, and the linear elements connecting directly the source and consumers of the product are considered to belong to the subset G1. The established regularities allow solving the problems of searching for optimal network structures that are resistant to development of emergency situations, by the mechanism of progressive blocking of nodes in design and reconstruction of pipeline transport systems. Keywords: transport, system, pipeline, structure, optimization, damage.