Input shaping for three-dimensional slew maneuvers of a precision pointing flexible spacecraft

Conference · Thu Mar 31 23:00:00 EST 1994

OSTI ID:10136166

Dohrmann, C R; Robinett, R D

A method is presented for input torque shaping for three-dimensional slew maneuvers of a precision pointing flexible spacecraft. The method determines the torque profiles for fixed-time, rest-to-rest maneuvers which minimizes a specified performance index. Spacecraft dynamics are formulated in such a manner that the rigid body and flexible motions are decoupled. Furthermore, assembly by making use of finite element analysis results. Input torque profiles are determined by solving an associated optimization problem using dynamic programming. Three example problems are provided to demonstrate the application of the method.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 10136166
• Report Number(s): SAND--94-0783C; CONF-9406133--1; ON: DE94008937; BR: GB0103012
• Country of Publication: United States
• Language: English

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42 ENGINEERING
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98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
99 GENERAL AND MISCELLANEOUS
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ALIGNMENT
ARMS CONTROL
ATTITUDE CONTROL
EQUATIONS OF MOTION
FACILITIES, EQUIPMENT, AND TECHNIQUES
MATHEMATICAL MODELS
MATHEMATICS AND COMPUTERS
SATELLITES
THREE-DIMENSIONAL CALCULATIONS
VERIFICATION