Electromagnetic Environmental Effects (E3) computational analysis of a navy frigate

A high frequency EMI/EMC analysis methodology for ships

“…This approach of identifying and using only critical elements of the ship structure for large electrical size EMI studies using full wave solver techniques (e.g. MLFMM) is not new; it is commonly used [2][3] and has been found not to compromise too much on simulated results accuracy [2]. An alternative method to determine critical ship structure to be included in the simulation is to use asymptotic techniques (e.g.…”

“…In such studies there is an absence in validating or verifying their simulated results to provide some level of confidence in the accuracy of their simulated results. From the same ship EMI/EMC studies where there has been some attempt to verify the simulated results with different CEM techniques they have been done using the same CEM software tool [2]. So in these studies there is an absence in validating or verifying the simulated results using totally different CEM techniques and CEM software tools.…”

“…Multilevel Fast Multipole Method (MLFMM), Integral Solver (IS)), hybrid or asymptotic techniques can be used. Although it is well understood full wave solver techniques provide better accuracy compared to asymptotic and hybrid techniques ( [2] [6]), they are more costly to computer memory. Therefore, the challenge for CEM modeling for predicting and assessing high-frequency ship EMI is accuracy and computer memory constraints.…”