The e-seminar will show that devices for cathodic protection, a standard procedure to fight corrosion in seawater, can generate an additional electric signature that also needs to be taken into consideration.
Protecting ships from sophisticated detectors designed to identify the vessels represents a particular challenge. Each vessel has its own unique, electromagnetic characteristics due to various sources of radiation and electromagnetic fields. Ship designers aim to modify and ideally reduce the magnetic and electric signatures below the level of sensitivity of detection devices.
SIMULIA Opera, a finite element analysis software for low frequency applications, can help to model and optimize the electromagnetic effects.
A simple example demonstrates how the magnetic signature of the vessel is reduced using 3D sets of coils installed onboard. We discuss practical aspects of building models for degaussing and show results of more complex analyses that include optimization using a dedicated application: SIMULIA Isight.
An example of a simulation of the ship’s deperming process is presented.
We show that devices for cathodic protection, a standard procedure to fight corrosion in seawater, can generate an additional electric signature that also needs to be taken into consideration.
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