FNREMUS is a suite of software modules for analysing the electric and corrosion fields around ships, submarines and marine facilities.

What can FNREMUS be used for?

It can be used for predicting and optimising a vessel’s Static Electric (SE) and Corrosion Related Magnetic (CRM) signatures and also for setting up a vessel’s ICCP (Impressed Current Cathodic Protection) system for minimum SE and CRM signatures. It may also be used to analyse the corrosion protection performance of a vessel’s corrosion protection system.

The FNREMUS software has been designed from the outset specifically for the assessment of naval corrosion protection systems and the associated signatures.

FNREMUS comprises of two components - 

• The Characterisation Suite
• The Detailed Modeller

This document highlights the specific features of each code and their differences.

The FNREMUS Characterisation Suite

The FNREMUS Characterisation Suite is a PC-based software tool for the rapid assessment of naval vessels’ static electric (SE) and corrosion related magnetic (CRM) signatures. It has been specifically designed to be quick and easy to use, with a standard windows user interface, powerful graph plotting capability and Microsoft Excel compatibility.

The Characterisation Suite can be used to provide rapid field or signature predictions and to swiftly analyse the signature performance of a vessel at any stage in its life from concept design to in-service support. It is also suited to determining the effects of different environments on the signature performance of a vessel and corrosion protection arrangements.

The software has been designed to be used to optimise a vessel’s operational signature on a range. The built in “inverse solver” enables measured range data to be easily imported and a model quickly built. This model can then be used to investigate the various signatures of a vessel generated under different operational conditions.

The FNREMUS Detailed Modeller

The FNREMUS Detailed Modeller software enables the assessment of corrosion problems including any associated corrosion protection systems, ICCP and/or sacrificial. The software has been specifically designed for naval systems and includes the capability to model multi-zone ICCP systems and their controllers.

The FNREMUS Detailed Modeller uses a boundary element model of the structure, combined with material polarisation curves, and representation of ICCP control circuits. Corrosion potentials and electric current distributions over the vessel’s surface are calculated as well as the vessels static electric (SE) signature in both the near and far-field.