SADM G3

Competitiveness & Growth

Status

Completed
Status date

2014-12-02

Objectives

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In the frame of SpacebusTM competitiveness project, the SADM G3 development objective is to be more competitive vs existing 2nd generation and to contribute to the overall SpacebusTM improvement objective, while insuring necessary power & section transfer capacity increase to the 27kW Range.

This development aims also to capitalize the experience of Thales Alenia Space previous SADM generation and RUAG Space Switzerland Nyon knowledge in the field of slip rings and sensors.

Challenges

Main challenges of this project are :

To meet technical constraint from low to high power satellite
To ensure robustness and margin capability without over designing SADM functions
To run a full Design for Manufacture & Test process to keep recurring costs to a minimum and to limit operational constraints

Benefits

SADM G3 design will allow to :

Reduce global SADM production schedule
Improve competitiveness of SADM product
Meet High power needs of telecom satellites

Features

SADM G3 key features are :

Modular architecture derived from Thales Alenia Space SADM for constellations including a Design to Manufacturing process.
High power transfer Slip ring with double insulation and improved thermal design
Geometry and strength selected against harsh launch environment and in-orbit life profile
Angular sensors using reliable technologies and tribology
No specific SADM active thermal control
Bearings and gearings key design choices considering Dry lubrication technology for insensitivity to long in-orbit life and thermal environments
Design simplicity and robustness against human errors from ground operations to in-orbit use