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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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    ClassNK, Japan Marine United (JMU), and NAPA have completed a joint feasibility study on 3D model-based plan approval using 3D CAD models as part of their technical investigation project.

    Shipbuilding designs are gradually transitioning from 2D drawings to those designed with 3D CAD software. Classification societies, whose plan approvals are currently based mostly on 2D drawings, are also required to develop a scheme for 3D CAD models from their submission to their examination completion.

    This project was conducted to examine the technical development required in each process of plan approval by JMU, NAPA, and ClassNK to realise 3D model-based plan approval. In the feasibility study, ClassNK conducted a trial evaluation for hull structural design on a 3D CAD model of 300,000DWT ore carrier designed and created by JMU, using NAPA Designer, a 3D CAD software application for ship design developed by NAPA, as a 3D model viewer. Plan submission, storage, and notification of examination results were made using the Society's electronic plan examination system NK-PASS.

    The investigation concluded that information required for class approval can be confirmed through a 3D CAD model, and that "NK-PASS" is also compatible with 3D CAD models. The results of this survey will serve as a basis for future technical studies, and the Society will continue to work with the industry to realise 3D model-based plan approval.

    Mr. Hayato Suga, corporate officer and director of plan approval and technical solution division said “This study has proven the future potential of 3D model-based approvals. 3D based design can be the key to improving digital solutions in the ship industry, including the ship design process, approval process and later fleet maintenance. I hope that the entire industry will also quickly realise the many opportunities and increased efficiency that can be achieved as a result of this initiative. The vessels of the future will be able to accommodate much better and safer designs in shorter amounts of time.” 

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    Main features include:

    • The program is focusing on the maritime industries.
    • The program supports Japanese and English and provides a certificate of completion after a comprehension test. This certificate can be used for an education record of Cybersecurity Management System.
    • The program is available anywhere and anytime via smart device and PC.
    • The program is certified by ClassNK in compliance with the Guidelines on Cybersecurity Onboard Ships Version 3, produced and supported by BIMCO (The Baltic and International Maritime Council).

    In a statement released by ClassNK, the classification society says that the increasing use of many solutions utilising “Big Data” and IoT technologies has brought benefits to the industry but it has also introduced cyber risks among maritime industries. Under these circumstances, it’s an important first step towards cyber safety for those who are engaged in ship operation and other related industries to gain proper knowledge. NKCS, KDDI and KDS offer a training program combining the companies’ expertise in offshore and onshore. 

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    Høglund Marine Solutions and DNV GL have signed a Memorandum of Understanding (MoU) to help generate and export big data from ships.

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