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| Electromagnetic Formation Flight ： ウィキペディア英語版 |
Electromagnetic Formation Flight
Electromagnetic Formation Flight (EMFF) investigates the concept of using electromagnets coupled with reaction wheels in place of more traditional propulsion systems to control the positions and attitudes of a number of spacecraft in close proximity. Unlike traditional propulsion systems, which use exhaustible propellants that often limit lifetime, the EMFF system uses solar power to energize a magnetic field. The Massachusetts Institute of Technology Space Systems Laboratory is exploring this concept by developing dynamics and control models as well as an experimental testbed for their validation.
==How it Works==
The magnetic fields for EMFF are generated by sending current through coils of wire. The interaction between the magnetic dipoles created is easily understood with a far field approximation where the separation distance between two vehicles is large compared to the physical size of the dipole. By controlling the dipoles on various vehicles, attraction, repulsion, and shear forces can be created. Combined with reaction wheels, any desired maneuver can be performed as long as the formation’s center of mass is not required to change.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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