The design and testing of a six degree of freedom isolation system using viscous damping is presented. To avoid interactions with the reaction wheel's magnetic bearing and output torque control loops, an isolation system is required to provide very specific and tightly controlled values for the natural frequency and damping (Q) in all degrees of freedom. Low natural frequency requirements and launch loads, together with 1-G testability, require the isolators to be capable of unusually large deflections. Analysis shows that the combination of requirements can be met with a symmetric arrangement of three isolator pairs - a hexapod. A prototype system has been fabricated. A design description and test results are included.
A multiaxis isolation system for the French Earth observation satellite's magnetic bearing reaction wheel
Mehrachsiges Isolationssystem für das Magnetlager-Reaktionsrad des französischen Erdbeboachtungssatelliten
1992
6 Seiten, 9 Bilder, 3 Quellen
Conference paper
English
Small satellite's role in future hyperspectral Earth observation missions
Online Contents | 2009
|Small satellite's role in future hyperspectral Earth observation missions
Online Contents | 2009
|