Monday, May 20, 2024

NAPA R2023.2 Released for Ship Design

HELSINKI, Finland, Jan 23, 2024 – NAPA is pleased to announce that its NAPA Release of 2023.2 is live now. The latest updates to the release have been made to further enhance quality, performance and usability.

NAPA Release 2023.2 highlights:

  • Faster creation and management of loading conditions
  • Many user-requested improvements for intact and damage stability analysis
  • Towards detailed design-oriented structural design tools
  • More efficient tools for automatic finite element meshing
  • NAPA Viewer facilitates collaboration with production stakeholders

Hydrostatics and Stability Calculations

In the latest release, we have especially improved the efficiency of stability calculation-related definitions and analysis.

For the loading conditions toolset of NAPA Designer, we have introduced a loading rules concept that speeds up the loading condition creation and management. The loading rules enable the modifications of several loading conditions at the same time, which means that for example the constant mass loads of several conditions can be updated all at the same time, to guarantee the consistency of loading conditions.

With the other new tools, for example, the free surface calculation rules are defined easier than ever before, and the reporting is used quickly to get the main results of the selected loading conditions.

Labels assigned for a loading condition
Labels used as loading rules

For the intact and damage stability analysis, we have implemented several rule updates and user-requested features. The new release supports for example the 2024 IP Code requirements, according to MSC.527(106). A new application of classic NAPA for the deterministic damage stability analysis assists especially new NAPA users with the required definitions and analysis.

Read more from the NAPA Release Notes document!

Detail Structural Design

This release offers numerous practical improvements to fulfill growing expectations for a seamless extension of 3D design workflow from initial to detail design. The improved ‘Saved Views’ helps designers to instantly access the design information they want to focus on. The polyline tool has been improved to easily represent the arc geometry of complex structures.

‘Saved Views’ (left), new round option of polyline tool (right) in NAPA Designer

With this release, detail design becomes easier and more efficient with other various user experience enhancements, including corner notch modeling, mould-side control for stiffeners and brackets, and building block-based drawing. 

Finite Element (FE) Meshing  

The new release introduces innovative features for high-quality FE mesh conversion from detailed 3D models, minimizing tedious mesh touch-ups. The ‘Collapse Narrow Parts’ feature automatically removes narrow elements at plate edges, and the ‘Idealization Exception’ tool allows the meshing irregularly placed structures as desired. Additionally, the ‘Combined FE Model’ feature enables the collaborative and concurrent creation of large-scale FE models.

(From left to right) Improved mesh using ‘Collapse Narrow Parts’ feature and ‘Idealization Exception’.

Using NAPA Viewer

NAPA Viewer, our web-based 3D collaboration tool, efficiently visualizes the variety of design information included in NAPA 3D models. The new building block visualization tool provides production stakeholders with a more efficient platform for design review, construction sequence study, and communication availability from the earlier design stage.

Building block visualization in NAPA Viewer

About NAPA

In its 30 years of operation, NAPA has become a global leader in software, services and data analysis for the maritime industry; providing best in class data-led solutions for safety, efficiency and productivity in both ship design and operations.

NAPA operates globally, with 11 offices across Asia, Europe and the Americas supported by its Helsinki headquarters. To date, NAPA has 420 user organizations for its design solutions and over 2,500 installations onboard vessels. For more information, visit

Nitin Patil
Nitin Patil
Editor and Director of Content, Nitin completed his Master's in Mass Communication & Journalism and having 13 years of work experience as an editor, content writer with renowned international technical magazines and media companies. He is associated with CAD,CAM industry since 2008.

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