Definition of design ambient temperature for the purpose of material selection for ship hull based on the normative documents
EDN: TWDHMW
Abstract
The object of the study presented in the paper are the structures of ship hull subjected to the long-term influence of low ambient air temperature.
The subject of the study are the methods aimed to define the value of design air temperature required to select the steel grade for hull structures.
The methods addressed in the paper are based on the industry regulatory framework. The following requirements have been reviewed: rules of Russian Maritime Register of Shipping, International Association of Classification Societies, International Maritime Organization, Finnish-Swedish Maritime Administration, and US Coast Guard rules. The calculations of design temperature have been performed, which are based on the available Russian climate database for several observation points. The calculations cover the period of 2013—2024 for winter season in the eastern part of Baltic Sea (Gulf of Finland) and Northern Sea Route area. The comparison is made between different probability theory methods and statistics applied to define the value of design air temperature. Normal law parameters have been calculated for all the selected observation points. Eventually, the design temperatures have been calculated which are based on probability theory methods.
Keywords
About the Author
M. S. Boyko
FAI Russian Maritime Register of Shipping
Russian Federation
Russian Federation
PhD
191181; Millionnaya ul., 7А; St. Petersburg
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For citations:
Boyko M.S. Definition of design ambient temperature for the purpose of material selection for ship hull based on the normative documents. Research Bulletin by Russian Maritime Register of Shipping. 2025;(78):51-64. (In Russ.) EDN: TWDHMW
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