Abstract
Electromagnetic screening is the usual approach for protecting sensitive electronic equipment against powerful electromagnetic disturbances. Applied for this purpose real-world metallic enclosures usually contain various structural irregularities, such as apertures or chinks, which complicate the assessment of the shielding effectiveness of such electromagnetic screens even in the quasi-stationary approximation. This is mainly due to the lack of appropriate theoretical models as well as accurate and efficient practical methods for simulating temporal and spatial field distribution of lightning electromagnetic pulses (LEMP) inside metallic enclosures with apertures. In this article we introduce generic mathematical models and a novel Hybrid method based on these models, which enable simulation of spatio-temporal distribution of electromagnetic fields, induced by distant or direct lightning strikes, inside metallic enclosures with apertures. We also carry out comparative performance analysis of the Hybrid method with respect to the Finite Element Method. Finally, we assess our theoretical results by comparing them with the experimental data acquired for a dummy rocket part. Three different cases are investigated: enclosure irradiated by quasi-static electric field of LEMP, enclosure irradiated by quasi-stationary magnetic field of LEMP, and enclosure struck by a lightning directly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
