On the solar pressure damping and attitude control |
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Authors: | VJ Modi WHHJ Lunscher |
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Institution: | Department of Mechanical Engineering, The University of British Columbia, Vancouver, B.C., Canada V6T 1W5 |
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Abstract: | Librational control of satellites using solar radiation pressure is investigated using a nonlinear optimization technique. The control strategy specifies only the direction in which a relatively weak solar pressure induced moment should be applied irrespective of its magnitude. The analysis suggests that a simple two-vane configuration can damp, rather effectively, severe disturbances over a range of satellite and orbital parameters. The controller is also successful in imparting any desired orientation to the satellite thus giving it a degree of versatility in undertaking diverse missions. The semi-passive character of the controller assures longer lifespan with an associated saving in cost. |
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