Discrete-event simulation of sea cargo front of export coal terminal in Anylogic environment

The article is focused on computer modeling of the sea cargo front of export coal terminal seaside in Anylogic environment. The main stages of development and formalization of the model have been analyzed. Using the statistical data on Rosterminalugol, JSC and Daltransugol, JSC, the dependences of the deadweight of bulk carriers on their length, width and draft were determined. A general classification of bulk carriers has been formed according to transport and technological characteristics. On the basis of statistical data, the number of bills of lading and/or grades of coal loaded onto bulk carriers at sea coal terminals have been assessed. Requirements for the selection of ship-loading equipment are formulated. The main types of berthing ship-loading machines used today are determined. Most export coal terminals use ship-loaders of the coordinate type with a lifting fixed boom. The choice of layout and technological scheme of the simulated sea front was carried out. The sea export coal terminal of Rosterminalugol, JSC in the seaport of Ust-Luga was taken as a basis. There is given a description of constructing a discrete-event simulation model of the sea cargo front in Anylogic software. It has been stated that the developed simulation model allows calculating the performance of the sea cargo front with several different layout options: with 1 or 2 berths, as well as with different capacity of cargo-loading machines. The results of the model operation make it possible to select a front layout option with the required annual throughput of berths and without exceeding the specified average time of vessel stay under loading. There are shown the basic principles of the model operation, explained the functionality of all logic blocks of the simulation model algorithm. The configuration control elements of the cargo front model have been presented, as well as the results of the work and conclusions.