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

用于皮纳卫星姿态控制的流体动力执行器的研究

• 批准号: 184525799
• 负责人: Professor Dr.-Ing. Klaus Brieß
• 金额: --
• 依托单位: Fachgebiet Raumfahrttechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/184525799?language=en
• 关键词: Investigations; Fluid; Dynamic; Actuators; Attitude

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.

该项目正在对未来纳米和微微卫星姿态控制系统进行实验室研究。这种替代装置使用流体环来存储角动量。先前的工作证明了流体动力执行器的有利可图的使用，并产生了紧凑而高效的执行器原型。通过对影响流量的组件进行详细检查，现在应优化整体系统性能。基于之前获得的见解，现在评估不同的液态金属和介电流体作为角动量存储介质的用途。因此，必须评估各种流体在不同温度下的机械泵性能。进一步强调电动推进机构，重点关注功率/重量比和流体驱动部件的效率。此外，还应分析各种通道几何形状对流动特性的影响。本研究旨在开发一种专为小型卫星姿态控制而设计的高效、无磨损的执行器系统。

项目成果

Laboratory investigation of a fluid-dynamic actuator designed for CubeSats

• DOI: 10.1016/j.actaastro.2013.11.030
• 发表时间: 2014-03
• 期刊: Acta Astronautica
• 影响因子: 3.5
• 作者: D. Noack;K. Brieß