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

该研究项目的主要目标是完成一个高效和无磨损的致动器系统的基础，用于皮科和超小型卫星的三轴稳定。初步调查表明，使用流体动力作动器可大大提高小型卫星的性能和寿命，从而使这类卫星能够完成日益复杂和长期的任务，对磁流体动力过程的调查是旨在提高系统效率和可靠性的研究项目的主要重点。为了在空间可靠使用，研究和抑制蒸发行为是非常重要的。为了提高可靠性，在高工作电流的影响下，空化趋势进行了检查。因此，必须采取有效的措施，以确保永久的过压。进一步的工作集中在温度相关的流动特性，微振动和球形执行器的使用的调查。创新的方法，感应驱动的球形流的目的是调查的球形致动器的三轴稳定的适用性。随后，在抛物线飞行运动中验证了新型作动器的三轴稳定性能。

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.