The PA application is used to assess hull girder ultimate strength and hull local scantlings while the FEA app uses a Finite Element Analysis approach for strength and fatigue assessment on different tanker and bulk carrier structures. At the moment, the software does not interface with CAD programmes, but this feature is on the CSRS PA and FEA roadmaps, and there are plans to implement an interface in later releases. Detailed instructions on how to install the new version of the software are available on the CSRS website in the User Guide and Release Notes provided with the software. All existing projects work seamlessly with the new revised release. A user uninstalls the previous version and then downloads the new version from the website. Upgrading to the new software is straightforward. The joint venture’s version 2.5 of the CSR Prescriptive Analysis (PA) and CSR Finite Element Analysis (FEA) software allows assessment of whole vessel structures – including new bulk carrier and oil tanker designs using either the 2015 or the 2017 versions of the common rules.īoth applications PA and FEA are standalone desktop applications that can be downloaded from the company website.
In response, both CSRS and ClassNK have updated their software to incorporate the changes.
Later in the year IACS made some changes to the CSR resulting in a new version that takes effect in July this year. Last May, at MSC 96, the IMO recognised that the harmonised CSR met the goals and functional requirements of the organisation’s own Goal-based Ship Construction Standards.
It was the joint venture’s hope that other societies would recognise the value of the suite and consider adopting it, but so far that has not happened and ClassNK and DNV GL both operate using their own software. Two class societies – ABS and LR – have tried to dispel this idea by jointly establishing Common Structural Rules Software LLC (CSRS) to provide industry with a validated and verified suite of software tools for CSR. However, despite the concept of common rules having been devised to address the issue of individual classification societies competing on lowered standards, there were still many who did not believe that the rules would be applied equally. The rules are applicable to all IACS members and with the advent of the common rules, class societies developed software to check and compare newbuilding designs against the requirements of the rules. That work was completed in 2013 and the new harmonised common structural rules adopted in December that year took effect in July 2015. Class societies update CSR software suitesĪlthough the original CSRs were developed separately for oil tankers and bulk carriers by two different working groups, it was soon recognised by IACS that there was a need to harmonise the two sets into a single version.
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