Modeling operation of forest harvester in AnyLogic simulation system

Abstract

The purpose of the work is to create a computer model that allows to reproduce the technological process of logging, taking into account a huge number of various conditions that can affect the final result of the enterprise, to obtain the data necessary for making effective managerial and organizational decisions on labor standardization and the preparation of regulatory documentation. To do this, using the agent-based modeling method, a simulation model of the production process was created in the AnyLogic program. The functioning of the proposed model is carried out on the basis of significant statistical data on the most important characteristics of individual elements of the production process. The article demonstrates the possibilities of modeling technological schemes of work at the cutting site at the design stage of the technological map without the need for real felling of forest plantations. The diagram of the conditions of the harvester’s work is presented, embedded in the simulation model created by the authors, which allows the researcher to conduct a step-by-step analysis of the work of the logging machine. An information-logical detailing of all blocks of the harvester work state diagram is shown, which allows understanding the principle of analysis when clearing the site for a new working position, analyzing the availability of trees in apiaries, processing of tree trunks, taking into account all movements and organizational and technical downtime in the process of developing forest cuttings. The reader is presented with a graphical demonstration of the choice of trees available for felling, as well as an analysis of the situation for moving to a new working position of the harvester. The sequence of data entry into the model and the principles of fixing the scientific results obtained on the basis of modeling are outlined. The created simulation model will allow forest users to compare the options for the technological schemes of the harvester's movement along the forest cutting with the choice of the best organizational and management solutions; creation of labor standards and production standards for the development of forest cuttings in any natural and production conditions for any model of the harvester used, depending on the type of felling and the species and quality characteristics of the felled trees.