Examinando por Autor "Morales Blanco, C."

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Restringido
Coupling Analysis Under Ligthning Indirect Effects For Cable Bundles With Different Ground Plates In Unmanned Aerial Vehicles
(Institute of Electrical and Electronics Engineers, 2021-10-19) Ramos Somolinos, D.; Morales Blanco, C.; López Sanz, Daniel; Plaza Gallardo, B.; Poyatos Martínez, D.; Ministerio de Ciencia e Innovación (MICINN); Agencia Estatal de Investigación (AEI)
It is increasingly common in aerospace industries to take advantage of novel composite materials in their manufacturing processes to improve performance and reduce costs. Obtaining the electromagnetic (EM) characterization of these materials or a combination of them is essential to ensure safety and EM compatibility.In this paper, a laminate of the central fuselage of an aircraft developed at INTA is recreated. This aircraft is called MILANO and it is mostly made of Carbon Fiber Composite (CFC). The same material is used for the laminate. Besides, another metallic plate is built in order to compare the performance of the former one with respect to a Perfect Electric Conductor (PEC). The main goal of this work is studying the coupling between the cable bundles embedded in the MILANO and how is this affected by the different materials of the ground plate (metal and CFC). Two kind of tests are carried out: S-parameters measurents and injection of Lightning Indirect Effect (LIE) waveforms. S-parameters results are then obtained through simulation too and compared with both the metallic and the CFC sample.
Acceso Abierto
Efecto de la saturación de los materiales magnéticos en el filtrado de interferencias
(Universidad de Valencia, 2023-11-21) Morales Blanco, C.; Moragrega Langton, María; López Sanz, Daniel; Instituto Nacional de Técnica Aeroespacial (INTA); Ministerio de Ciencia e Innovación (MICINN)
En electrónica, el uso de bobinados con núcleos de ferrita está cada vez más extendido, para filtrar y proteger equipos electrónicos frente a interferencias electromagnéticas (EMI). Por ello, es de gran importancia el conocimiento de las prestaciones de dichos núcleos. Su uso frente a niveles elevados de tensión puede hacer que su comportamiento se aleje del régimen lineal a uno no lineal, conociéndose también como estado de saturación en materiales magnéticos. En estas condiciones, se modifican las características que se esperan de los bobinados destinados a la filtración de interferencias, eso es, impedir el paso de señales interferentes al interior de los equipos electrónicos, ofreciendo alta impedancia en las líneas de alimentación y señal. En esta ponencia, se presentarán los resultados obtenidos en el estudio de este fenómeno. Se demostrará inyectando pulsos de alta energía de diferente amplitud a una bobina, hasta observar comportamientos no lineales que se podrían identificar con la saturación de los materiales magnéticos. Este estudio abre la puerta a futuras líneas de investigación sobre el comportamiento de materiales magnéticos frente a la inyección de altas energías.
Restringido
EMC test campaign on VEGA C launcher upper stage
(Institute of Electrical and Electronics Engineers, 2020-09-25) Jiménez Lorenzo, María; Ortiz Martín, Jesús; Albano, Rocco; López Sanz, Daniel; Morales Blanco, C.; Añón Cancela, M.; Ministerio de Ciencia e Innovación (MICINN)
The purpose of this paper is to summarize the Electromagnetic Compatibility (EMC) test campaign carried out in the EMC Area of Spanish National Institute for Aerospace Technology (INTA) [1] of the fourth stage of the European VEGA-C launcher of the European Space Agency. This is a new launcher version which maiden flight is planned for 2020. It is an evolutionary development of its predecessor VEGA launcher, with larger Payload mass launch capability in Low Earth Orbit. The requirements for the EMC testing in space engineering are included in ECSS-E-ST-E-20-07C rev. 1 standard [2] but they usually must be adapted to each mission or project, as the requirements and electromagnetic environment are unique for each of them. This implies an intensive engineering analysis to develop the test specification and run the qualification EMC test campaign. The main characteristics of the radiated and conducted EMC tests carried out under INTA's responsibility are shown, focusing on the main challenges encountered and the way to sort them out. They are not only related to EMC requirements of the project, but also to the inherent difficulties in the management and handle of a large dimensions and complex system such as a launcher's upper stage.