SIVA UAV: A Case Study for the EMC Analysis of Composite Air Vehicles

Abstract

Abstract-The increased use of carbon-fiber composites in Unmanned Aerial Vehicles is a challenge for their EMC assessment by numerical solvers. For accurate and reliable simulations, numerical procedures should be tested not only for individual components, but also within the framework of complete systems. With this aim, this paper presents a benchmark test case based on experimental measurements coming from direct-current injection tests in the SIVA unmanned air vehicle, reproduced by a numerical Finite-Difference-Time-Domain solver that employs a new subgridding scheme to treat lossy composite thin panels. Validation was undertaken by applying the Feature Selective Validation method, which quantifies the agreement between experimental and numerical data.

Fiber Takviyeli Silindirik Kabuğun Ekranlama Etkinliğinin Analizi ve Simülasyonu

“…12(1): 10-17 (2021) Analysis and Simulation of Shielding Effectiveness of a Fiber Reinforced Cylindrical Shell 11 tection of electronic equipment from the effects of external sources like High-Intensity Radiated Fields (HIRF), Lighting and High Altitude Electromagnetic Pulse (HEMP) is an important issue against involuntary electromagnetic interference (EMI) (Perala et al, 1991;Cordill et al, 2011;Aziz et al, 2012;Jazzar et al, 2014;Gutiérrez et al, 2014;Vogel, 2014;Bui et al, 2015;Nunes and Schuur, 2015;Cabello et al, 2017;Huang et al, 2017). The aircraft/spacecraft manufacturing industry is one of the areas that reinforced composite materials are widely used as a replacement for metals.…”

Influence of Geometric Simplifications on High-Intensity Radiated Field Simulations

“…It was developed by UGR in collaboration with Airbus Defence and Space within several research and technology projects [18,19]. It is especially suited to deal with HIRF/Lightning electrically-large EMC problems [7,[20][21][22][23], and can account for complex structures, materials, cables, composite thinpanels, etc.. Further information about thin-panel and thin-wire formulation can be found in [24,25] and [9,17,26] respectively. A variety of output data can be obtained including the electric current and voltage transient profiles stressing electric/electronic equipment considered in this study.…”

Comparing Open Area Test Site and Resonant Chamber for Unmanned Aerial Vehicle's High-Intensity Radiated Field Testing

“…In order to enable valid comparisons, easy access to the bays as well as easy manipulation of the mea- suring probes in several points should be granted. On the other hand, under the scope of the UAVEMI project, the experimental results would also be used for validation of numerical simulations based on finite difference time domain (FDTD) solvers that are trying to include the behaviour of composite materials in their calculations [22]. For this kind of validation exercise, a simplified test object model is preferred.…”