摘要:
Die Erfindung betrifft einen multifunktionalen Kontroller (10) für die Kombination aus Onboard Computer (OBC) und Stromversorgungseinheit (PCDU) eines Satelliten, der folgendes aufweist: Rekonfigurationsfunktionen (12) zum Überwachen der korrekten Funktion von Komponenten eines Onboard-Computers des Satelliten und zum Umschalten zwischen redundanten Komponenten und/oder Rekonfigurieren von Komponenten des Onboard-Computers und/oder Abschalten von elektrischen Verbrauchern des Satelliten in einem Fehlerfall, und Steuerfunktionen (14) zum Steuern und Verteilen von Energie an Satellitenkomponenten, die zum Ein- und Ausschalten der Stromversorgung von Satellitenkomponenten im Zusammenspiel mit der Rekonfigurationseinheit ausgebildet ist.
摘要:
A passive thermal system for use in satellites includes a solid radiator panel with a plurality of heat pipes attached to a surface thereof. In addition to their heat transporting capability, the heat pipes strengthen the radiator panel to which they are coupled. In some embodiments, the heat pipes are structurally modified to increase their area moment of inertia.
摘要:
La présente invention a pour objet un dispositif d'articulation à roulement comprenant deux cylindres d'enroulement sensiblement parallèles, des moyens d'enroulement formant élément de liaison de forme longitudinale, les moyens d'enroulement étant aptes à maintenir une distance prédéterminée entre les cylindres d'enroulement et étant enroulés autour des cylindres d'enroulement, et au moins deux pistes flexibles, une piste flexible étant fixée sur chaque cylindre d'enroulement, les pistes flexibles étant disposées en vis-à-vis et présentant un point de contact, un effort de précontrainte s'appliquant audit point de contact des pistes flexibles sous l'effet des moyens d'enroulement, caractérisé en ce qu'au moins une piste flexible comprend au moins une fente (323, 323') réalisée sur au moins une partie de sa longueur, la fente délimitant une pluralité de sections de poutres (325) flexibles de profils déterminés..
摘要:
Systems and methods for powering an electrical thruster (112) of a vehicle (100). The methods comprise providing an unregulated high voltage output current of a high voltage solar array (122) directly to an electric propulsion system (104) of the vehicle. The electric propulsion system generates a converted high voltage current by converting a voltage level of the unregulated high voltage output current. The converted high voltage current is supplied directly to an anode of the electrical thruster. A regulated low voltage current is also generated by regulating a low voltage output of a low voltage solar array (124). The regulated low voltage current is used to supply power to at least one electronic component of the electrical thruster.
摘要:
A foil deployment mechanism comprises a first drum rotatable about a first longitudinal axis, and a second drum rotatable about a second longitudinal axis. The foil deployment mechanism further comprises a cable, the cable comprising a first section which extends from a lower part of the second drum to an upper part of the first drum, a second section which is wound around a part of the first drum facing away from the second drum, a third section which extends from a lower part of the first drum to an upper part of the second drum, and a fourth section which is wound around a part of the second drum facing away from the first drum, wherein the first section and the third section intersect each other between the first drum and the second drum when being viewed along the first longitudinal axis.
摘要:
A system for solar energy utilization is described. The system comprises a solar receiver, a solar energy concentrator mounted on a pole extending from the solar receiver along the main axis of the system, and a solar tracking system. The solar receiver is configured for receiving solar energy from the sun and concentrating the received solar energy at a predetermined spot area. The solar receiver includes a plurality of flexible mirrors independent of each other and radially arranged around a main axis of the system. The flexible mirrors are configured to be either deployed for operation or collapsed, for example for transportation or in the cases of possible damage of the system. The solar energy concentrator is located at the predetermined spot area in which the solar energy reflected from said plurality of flexible mirrors is concentrated, and configured for converting the concentrated reflected energy into electric energy. The solar tracking system is configured for sensing position of the sun and tilting the system for directing the solar receiver towards the sun to receive and reflect maximum sunlight onto the predetermined spot area.
摘要:
Micro satellite is disclosed with foldable solar panels that may be winded around the body of the micro satellite so that the growth in outer dimensions of the satellite is no more than 10-20 mm along each one of the length, width and height of the microsatellite so that the micro satellite may be launched in an auxiliary payload volume of a launcher. The foldable solar panels may be deployed to employ area that exceeds 9 times the product of the length by the width of the satellite and 6 times the product of the height by the length. The solar power produced by the solar panel and their light weight enable carrying of cargo that is at least 0.6 of the of the total mass of the satellites.