✦ LIBER ✦

Control of the vibrations of a tethered satellite system

✍ Scribed by F. Dignath; W. Schiehlen

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 613 KB
Volume: 64
Category: Article
ISSN: 0021-8928
DOI: 10.1016/s0021-8928(00)00100-3

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✦ Synopsis

A method of damping structural vibrations using optimization techniques is presented and applied to a tethered satellite system. Such systems show large displacements and require active or passive damping mechanisms. A tethered satellite system is modelled by the method of multibody systems using symbolic equations of motion. Active damping is provided by an actuator between the main body and the tether. The control parameters are optimized. The energy decay of the system is used as the performance criterion. The complex dynamics of the motion of this system are demonstrated in simulations with different initial conditions including structural vibrations. It is shown that an optimization process enables the control parameters be improved with respect to the dissipation of energy of longitudinal structural vibrations.

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