Optimal maneuvering and fine pointing control of large space telescope with a new magnetically suspended, single gimballed momentum storage deviceThis paper considers the application of an Annular Momentum Control Device (AMCD) to both fine pointing and large-angle maneuvering of a large space telescope (LST). The AMCD, which consists principally of a spinning rim suspended in noncontacting electromagnetic bearings, represents a new development in momentum storage devices. A nonlinear mathematical model of the AMCD/LST system is derived. An optimal stochastic fine-pointing controller is designed via LQG theory and the minimum-energy maneuvering problem is solved via a gradient technique. Number of state variable and control variable constraints, as well as all trigonometric nonlinearities, are considered in the latter part.
Document ID
19770045987
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Nadkarni, A. A. (Old Dominion Univ. Norfolk, VA, United States)
Joshi, S. M. (Old Dominion University Research Foundation, Norfolk, Va., United States)