Multicriterion structure/control design for optimal maneuverability and fault tolerance of flexible spacecraft
نویسندگان
چکیده
منابع مشابه
Multicriterion Structure/Control Design for Optimal Maneuverability and Fault Tolerance of Flexible Spacecraft
A multicriterion design problem for optimal maneuverability and fault tolerance of flexible spacecraft is considered. The maneuverability index reflects the time required to perform rest-to-rest attitude maneuvers for a given set of angles, with the postmaneuver spillover within a specified bound. The performance degradation is defined to reflect the maximum possible attitude error after maneuv...
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Two robust nonlinear controllers along with a nonlinear observer have been developed in this study to control a 1D nonlinear flexible spacecraft. The first controller is based on dynamic inversion, while the second one is composed of dynamic inversion and µ-synthesis controllers. The extension of dynamic inversion approach to flexible spacecraft is impeded by the non-minimum phase characteristi...
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In this paper, slewing maneuver of a flexible spacecraft with large angle of rotation is considered and assuming structural frequency uncertainties a robust minimum-time optimal control law is developed. Considering typical bang-bang control commands with multiple symmetrical switches, a parameter optimization procedure is introduced to find the control forces/torques. The constrained minimizat...
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We present an autonomy architecture called Fault Tolerant Remote Agent that integrates symbolic reasoning from AI planning/scheduling with physics-based fault-tolerant control. Application to spacecraft attitude management in the presence of diverse failure classes is studied. We first review fault tolerance in AI and control-theoretic contexts and introduce an architecture in which the capabil...
متن کاملCombined design of structures and controllers for optimal maneuverability
1 I n t r o d u c t i o n Large space structures such as antennas or space stations will be very flexible, not only because of the high cost of transportation of structures from earth to space, but also because they will be constructed or deployed in orbit and will not need to withstand large launching and gravity loads. However, when a space structure is very flexible, its active control syste...
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ژورنال
عنوان ژورنال: Journal of Optimization Theory and Applications
سال: 1994
ISSN: 0022-3239,1573-2878
DOI: 10.1007/bf02191852