SIMULATION AND SELECTION OF A PROTECTION TYPES IN THEDESIGN STAGE OF SHIPS AND OFFSHORE STRUCTURES

[摘要] The requirements of the rules and regulations of the Classification Societies are basedon the assumption that during the construction and operation of ships the hull corrosionprotection measures are implemented according to the standards and other regulatorydocuments currently in force. For the purposes of designing the ship hull structures, the loadcomponents for different corrosion protection types have been obtained in the paper. Therehave been collected the data on the relationship between the corrosion protection weight loadand the ship displacement, which enables to select the lowest corrosion protection type byweight. Technical and economic parameters of corrosion protection of ship hull structureshave been analyzed. To achieve the objective of the paper a cumulative simplified approachof economic feasibility of selecting the corrosion protection type for ship hull structures hasbeen employed. It has been determined that a total cost of protection from stress-corrosionfractures decreases for the ships with a displacement of more than 6000 [t] in the case ofusage of the impressed current cathodic protection instead of the sacrificial anode cathodicone. The results of the investigation can be used by shipbuilders at the ship design stage,which enables to make a correct selection of a corrosion protection type and decreases its totalcost.

[学科分类] 工程和技术（综合）

[关键词] weight load;corrosion protection;ship;cost;capital expenses;operatingexpenses