Guidelines for Direct Load Analysis and Strength Assessment
Year: 2025 Language: English Author: ClassNK Genre: Guide Publisher: ClassNK Edition: 4.1 (December 2025) Format: PDF Quality: eBook Pages count: 33 Description: Ships need to be capable of ensuring and maintaining their structural functions whenever they are in service, and today’s ships are more diversified and larger than ever before. This means that ClassNK is always in search of new technical knowledge, either from recent research or from organisations such as IACS (the International Association of Classification Societies), to incorporate into its technical rules. Our goal is to constantly being reviewing our requirements related to structural strength assessment so as to develop safer and more rational requirements that continuously ensure ship structural integrity, even under the harshest sea and weather conditions. One of the structural strength assessment methods that require advanced technology is called “Direct Load and Structural Analysis” and it employs direct load analysis and finite element analysis. This method directly simulates the wave-induced loads acting upon ships and uses structural strength assessments carried out by finite element analysis to reproduce these loads. This method makes it possible to reproduce actual ship states to a high degree of accuracy and thus evaluate the details of each ship characteristic correctly. In order to make further use of direct load structural analysis, ClassNK publishes benchmark test data as the base data of the analysis program, and at the same time, issues the fourth edition of this Guidelines which specifies the requirements related to the benchmark data.
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Guidelines for Direct Load Analysis and Strength Assessment
Language: English
Author: ClassNK
Genre: Guide
Publisher: ClassNK
Edition: 4.1 (December 2025)
Format: PDF
Quality: eBook
Pages count: 33
Description: Ships need to be capable of ensuring and maintaining their structural functions whenever
they are in service, and today’s ships are more diversified and larger than ever before. This
means that ClassNK is always in search of new technical knowledge, either from recent
research or from organisations such as IACS (the International Association of Classification
Societies), to incorporate into its technical rules. Our goal is to constantly being reviewing our
requirements related to structural strength assessment so as to develop safer and more rational
requirements that continuously ensure ship structural integrity, even under the harshest sea
and weather conditions.
One of the structural strength assessment methods that require advanced technology is called
“Direct Load and Structural Analysis” and it employs direct load analysis and finite element
analysis. This method directly simulates the wave-induced loads acting upon ships and uses
structural strength assessments carried out by finite element analysis to reproduce these loads.
This method makes it possible to reproduce actual ship states to a high degree of accuracy and
thus evaluate the details of each ship characteristic correctly.
In order to make further use of direct load structural analysis, ClassNK publishes benchmark
test data as the base data of the analysis program, and at the same time, issues the fourth
edition of this Guidelines which specifies the requirements related to the benchmark data.
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