DISTRIBUTED MAGNETIC ACTUATORS FOR FINE SHAPE CONTROL

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 6359
Amount: $49,899.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Sat-con Technology Corp
71 Rogers St, Cambridge, MA, 02142
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DAVID B EISENHAUSE
 (617) 661-0540
Business Contact
Phone: () -
Research Institution
N/A
Abstract
NEW SPACECRAFT DESIGNS FEATURE LARGE STRUCTURES CHARACTERIZED BY LOW NATURAL FREQUENCIES, LIGHTLY DAMPED STRUCTURAL MODES, AND STRINGENT SHAPE CONTROL REQUIREMENTS. THESE LARGE SPACE STRUCTURES (LSS) POSE UNIQUE AND DIFFICULT CONTROL PROBLEMS. AN IMPORTANT PART OF THE SOLUTIONS TO THESE CONTROL PROBLEMS IS THE DEVELOPMENT OF ACTUATORS THAT ALLOW THE APPLICATION OF FORCE AND OR TORQUE TO THE SPACE STRUCTURE. THIS PROPOSED RESEARCH PROGRAM WILL EXAMINE ADVANCED DISTRIBUTED LSS SHAPE CONTROL USING AN ARRAYS OF MAGNETIC COILS FIXED TO THE STRUCTURE. EACH COIL WILL PROVIDE SIX-DEGREE-OF-FREEDOM ACTUATION (FORCES IN AN TORQUES ABOUT THREE ORTHOGONAL AXES) WHEN IT INTERACTS WITH OTHER COILS IN THE ARRAY. THIS ACTUATION SCHEME IS EXPECTED TO HAVE A NUMBER OF ADVANTAGES OVER CONVENTIONAL ACTUATORS INCLUDING DC FORCE CAPABILITY, HIGH BANDWIDTH, EXTREMELY LOW MASS, AND NO MOMENTUM SATURATION EFFECTS. THE PROPOSED RESEARCH PROGRAM WILL DEVELOP THESE ACTUATORS AND ASSESS THEIR PERFORMANCE COMPARED TO CONVENTIONAL ACTUATORS.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government