Investigations of Using Fluid-Dynamic Actuators for Three-Axis Stabilization of Pico- and Nanosatellites

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The primary goal of the research project is to complete the foundations of a highly efficient and wear-free actuator system for three-axis stabilization of pico- and nanosatellites. Preliminary investigations showed that the use of fluid-dynamics actuators leads to a considerable increase in the performance and lifetime of small satellites, such that increasingly complex and long-term tasks can be fulfilled by this satellite category.Investigations into magneto-hydrodynamic processes are the main focus of the research project aiming to increase of system efficiency and reliability. For reliable use in space, research and suppression of the evaporation behavior is of great importance.In order to increase reliability, cavitation tendency is examined under the influence of high operating currents. Consequently effective measures have to be taken to ensure a permanent overpressure.Further work focuses on the investigation of temperature-dependent flow properties, microvibrations and the use of spherical actuators. The innovative approach of an inductively driven spherical flow is intended to investigate the suitability of spherical actuators for three-axis stabilization. Subsequently, the three-axis stabilization properties of the novel actuators are verified in a parabolic flight campaign.