ATTENUATION OF ELECTROMAGNETIC FIELD IN FLIGHT INSTRUMENT USING ADDITIVE MANUFACTURING

Abstract

This research explores the use of alternative materials like this ABS thermoplastic filament and a modern manufacturing method, such as 3D printing to reproach the enclosure of a tachometer indicating instrument that measures revolutions per minute RPM of an aeronautical gas turbine engines with characteristics of attenuation of electromagnetic fields and noise suppression, same to the original instrument enclosure made by extruded aluminum, to find this goal uses Gauss's law and the Faraday cage, also, the combination of plastic and fiberglass like a double walls structure that attenuates noise propagation. Use computer-aided engineering and design, by the simulation and validation of the prototype characteristics through the method of finite element and electromagnetic compatibility analysis. Finally, the results of laboratory and field tests allow quantifying the new mechanical characteristics acquired.

Keywords: 3D print, flight instrument, faraday cage.

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