Optimization of the use of the production capacity of a shipyard

Abstract

The article discusses the issues of determining the production capacity of a shipyard and modeling the production process of ship repair using a systematic approach. The production capacity of the plant is understood as the maximum possible annual output in terms of the indicators and nomenclature established for the shipyard, with the full use of equipment and areas. The maximum volume of production is achieved when the structure of products is fully consistent with the structure of production resources and the structure of production assets. Improvement of management at the ship repair enterprise can be carried out in directions, including by creation of the model of production based on allocation of its most essential characteristics, used of mathematical methods of optimization. A static model is proposed to optimize the use of the shipyard production capacity, when performing scheduled preventive maintenance of shipping company ships in market conditions and a dynamic model of the annual plan in order to maximize the shipyard load and uniform use of its production capacity. In the performed calculations of the test case on the basis of the static model, four optimal plans with different optimization conditions were obtained: a plan for using the production capacity of the shipyard with the given initial data; plan with maximum production capacity with full use of shipyard resources; a plan for changing the solvency of the shipping company; plan for changing the terms and standards of ship repair. In all plans, the volume of repairs and the availability of resources limiting the production process are analyzed. Based on the proposed models, the following groups of factors on which the use of the production capacity of the shipyard depends have been identified: 1) technical and operational parameters of shipyard units; 2) demand for shipyard services in the form of volumes of planned work by type of production activity; 3) standards for the use of shipyard capacities; 4) the solvency of customers; 5) the way of organizing the production process. The method of organizing ship repair is understood to mean the assignment of certain resources of the shipyard units for the fulfillment of planned or additional customer orders. All factors of the first four groups affect the volume of ship repair and other indicators of the production program in the actual or optimal way of organizing production.

Keywords

• shipyard, production capacity, economic and mathematical models, analysis, grouping of factors