Wire boom mechanism for BepiColombo mission to Mercury (original) (raw)

Abstract

The BepiColombo Cornerstone to Mercury is the next milestone of the Horizon 2000+ scientific program plan of the European Space Agency devoted to the study of the planets of the Solar System. The BepiColombo mission scenario imposes severe thermal and radiation environments on the spacecraft exposed surfaces and scientific instrument mechanisms due to the position of Mercury in the Solar System. Amongst the instrumentation required for supporting scientific research, long dipole antennae are used to measure the electric component of wave fields. Mechanisms used to feature these wire boom antennae must be designed to the most stringent requirements derived from the hostile environment. A design of such a wire boom mechanism is here presented along with the most outstanding findings of the test campaign to which the engineering model was submitted.

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