Investigations of Fluid-Dynamic Actuators for Attitude Control of Pico- and Nano Satellites

• Applicant: Professor Dr.-Ing. Klaus Brieß
• Subject Area: Microsystems ; Fluid Mechanics
• Term: from 2010 to 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 184525799

This project is dealing with laboratory investigations for a future attitude control system for nano- and pico satellites. This alternative device uses fluid rings for angular momentum storage. Previous work delivered proof for the profitable usage of fluid-dynamic actuators and resulted in a compact and efficient actuator prototype. Through detailed examination of the flow affecting components, the overall system performance shall now be optimized. Building on previously gained insight, different liquid metals and dielectric fluids are now evaluated for their use as a medium for angular momentum storage. Therefore, the mechanical pump performance at different temperatures for the respective fluids must be assessed. Further emphasis is laid on electro-dynamic propulsion mechanisms with focus on the power/weight ratio and the efficiency of the fluid driving components. Moreover, the influence of various channel geometries on the flow properties shall be analyzed. This research aims at the development of a highly efficient and wear-free actuator system tailored for the attitude control of small satellites.

• DFG Programme: Research Grants