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PERFORMANCE OF SUPERCONDUCTING MAGNETIC BEARINGS IN AN ADVANCED MOMENTUM…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
6789
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
6789
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SATCON APPLIED TECHNOLOGY, INC.
1745A West Nursery Rd MS4018 Li, MD -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1989
Title: PERFORMANCE OF SUPERCONDUCTING MAGNETIC BEARINGS IN AN ADVANCED MOMENTUM EXCHANGE EFFECTOR
Agency: NASA
Contract: N/A
Award Amount: $488,400.00
 

Abstract:

ANGULAR MOMENTUM EXCHANGE EFFECTORS HAVE SEVERAL ADVANTAGES OVER THRUSTERS. THESE INCLUDE REDUCED MAINTENANCE (FLUID MUST BE PERIODICALLY REPLACED) AND IMPROVED COMPATIBILITY WITH OPTICS (NO EFFLUENTS). HIGH-RATE SLEWING OF LARGE PAYLOADS, HOWEVER, WILL REQUIRE TORQUES (TENS OF THOUSANDS OF NEWTON-METERS) AND ANGULAR MOMENTUM STORAGE CAPACITIES (TENS OF THOUSANDS OF NEWTON-METER-SECONDS) THAT ARE LARGE IN COMPARISON TO THE CAPABILITIES OF AVAILABLE ANGULARMOMENTUM EXCHANGE HARDWARE. ONE REASON IS THAT HIGH TORQUE PRODUCES AN EXTREMELY DIFFICULT DESIGN CONSTRAINT FOR HIGH INSTRUMENT-GRADE MECHANICAL BEARINGS AND CONVENTIONAL MAGNETIC BEARINGS. FOR CONVENTIONAL MAGNETIC BEARINGS, HIGHTORQUES REQUIRE THAT THE MAGNETIC STRUCTURE BE EXCESSIVELY MASSIVE. AN ALTERNATIVE DESIGN EMPLOYS A SUPERCONDUCTING COIL IN THE MAGNETIC BEARING AND ELIMINATES ALL CONVENTIONAL MAGNETIC STRUCTURES IN ORDER TO PRODUCE A VIABLE HIGH-TORQUE MOMENTUMEXCHANGE EFFECTOR. THE MAGNETIC BEARING IS ALSO USED TO FULLY GIMBAL THE SUSPENDED ROTOR OF THE SLEW ACTUATOR. THE PROPOSED PHASE I RESEARCH WILL RESULT IN A DETAILED ANALYSISOF THE PERFORMANCE OF THIS ADVANCED CONTROL MOMENT GYRO. A LABORATORY DEMONSTRATION INCORPORATING CONVENTIONAL TECHNOLOGIES WILL ALSO BE DESIGNED DURING PHASE I. CONSTRUCTION AND TESTING OF THE HARDWARE WILL BE PERFORMED AS A PHASE II EFFORT.

Principal Investigator:

Dr James R Downer

Business Contact:

Small Business Information at Submission:

Satcon Technology Corp.
71 Rogers St Cambridge, MA 02142

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No