Type 2 Side-Drive Solar Array Drive Mechanism
The Side-Drive Solar Array Drive Mechanism (SADM) consists of a slip ring assembly and an actuator coupled by a spur gear set which, when driven by suitable drive electronics, will position the Solar Array toward the sun for maximum power and transfer the collected energy to the spacecraft power bus. The SADM unit is an integrated assembly of actuator, slip ring with integral position feedback potentiometer, and the output spur gear set. The gearbox, which contains the output spur gear set, is configured with the spacecraft-mounting interface, and serves as the member, which integrates the other components of the SADM. The slip ring assembly is of the proven metal-on-metal construction, with a multi-ring rotor and multi-wire brush-type contactors. The slip ring assembly is located on the rear face of the output gearbox, and the rotating cable bundle exits on the centerline of the slip ring assembly.
Key Features:
- Design accommodates large size slip ring assemblies
- Output side driven by Type2 actuator
- Large output provides high moment stiffness
- High gear ratio provides fine output resolution
- Integrated large potentiometer for position feedback
Specifications
| Description | Value |
Motor Winding Resistance |
0.02 Degrees |
| Potentiometer Resistance | >18 (N-m) |
| Output Step Size | >15 (N-m) |
| Output Torque | 15 W |
| Unpowered Holding Torque | -30˚ C to +65˚ C |
| Power Consumption | 5 Kg |
| Operating Temperature Range | >12 Kg.m^2 |
| Mass | Potentiometer ± 1.5 deg. linearity |
| Slip Ring Complement | Medium: 24 Power @ 3A plus 19 Signal @ 1 A High: 32 Power @ 3A plus 19 Signal @ 1A |
Resources
Datasheets, Brochures and Catalogs
Infographics
Related Markets
Space
Moog has designed and manufactured components and systems for satellites and launch vehicles for more than 60 years.
Spacecraft Technologies
Moog is a proven leader in components, subsystems, and systems for spacecraft of all sizes, from smallsats to GEO spacecraft. Moog has been successfully providing spacecraft controls, inspace propulsion, and major subsystems for science, military, and commercial operations for more than 60 years.