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ClassNK software for Harmonized Common Structural Rules

ClassNK claims that it has released the world’s first software package for use with the new IACS Harmonized Common Structural Rules (CSR) for bulk carriers and oil tankers, which were released at the beginning of July 2012.

IACS’ new Harmonized CSR combine existing CSR for bulk carriers and tankers, introduced in 2006, with IMO’s Goal Based Standards (GBS) for shipbuilding regulations.

IACS released the first draft of the rules for public comment on 1 July 2012, to allow time to incorporate input from industry groups and end-users.

“As a new set of global requirements for the industry, new software will be essential for yards and designers to efficiently test and implement the new rules,” commented ClassNK executive vice president Takuya Yoneya, who oversaw the class society’s development of the new software.

“By releasing this new software for use with the first draft of the new Harmonized CSR, we hope to make it easier for yards and designers around the world to familiarise themselves with the new requirements, as well as make use of the rules for new ship designs.”

The new software is a complete reworking of ClassNK’s existing CSR software, already in use at shipyards around the world.

“Our goal with this new software,” said Dr Yoneya, “was to incorporate not only our extensive experiences with the CSR, but also the insights and opinions of leading shipyards and designers in the development process.”

The new Harmonized CSR software provides new functions like a 'Case Study' tool, which allows users to assess the effects of changes to the parameters of initial ship designs, as well as a new function to automatically generate 3D models for hull structural analysis directly from rule calculation data.

ClassNK says that the new software can apply data produced by existing CSR software, and is able to integrate with all major 3D CAD/CAE software systems and ship performance calculation software.

“This new software is not just a calculation tool, but a total design support system.” says Dr Yoneya.

“Thanks to the new features and tools included, we are confident that this software will not only support the development of safer ships, but also improve design quality, and increase the speed of the ship design process.”

ClassNK says that it will provide its new software at no charge to shipyards and designers around the world.

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