Electromagnetic Environmental Effects
Electronic systems may be susceptible to damaging Electromagnetic Environmental Effects (E3) that can arise from a variety of natural or man-made environmental sources. These sources may include Electromagnetic Pulse (EMP), Radio Frequency Interference (RFI), High Intensity Radiated Fields (HIRF), Electromagnetic Interference (EMI), Electrostatic Discharge (ESD), Lightning Strikes and Precipitation Static (P-STATIC). Other concerns include the hazards of electromagnetic radiation to personnel, ordnance and volatile materials (RADHAZ). E3 applications often involve electrically large structures (aircraft, ships, land vehicles) containing critical detail (seams, cables). The EM sources can be frequency-domain based over a broad range, or transient waveforms. CST's complete simulation technology is ideal for handling these multi-scale problems.
CST's E3 applications include: full vehicle susceptibility analysis, enclosure shielding effectiveness calculation, test rig design/assessment and normalization to free space environments (e.g. lightning return conductor systems), cable design and shield transfer impedance extraction, prediction of induced currents/voltages in complex cable systems and performance of EMI filters, ferrites or non-linear transient protection circuits.
All Articles
This webcast discusses the application of full wave modeling to predicting EMC/E3 performance in a rotorcraft. We start by investigating the coupling from a blade installed on the fuselage to internal cable systems. CST CABLE STUDIO is used to efficiently and accurately model the bi-directional interaction between electromagnetic fields and the complex cable system. True transient co-simulation enables direct time-domain analysis of voltages and currents induced in cable systems, due to an incident EMP. Finally, non-linear components are added to the model to assess the performance of transient protection devices (TPD’s).
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This article examines the modelling of lightning strikes using CST MICROWAVE STUDIO® (CST MWS). The surface current distribution due to a double-exponential form lightning strike on the nose of an airplane is calculated by way of example.
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