The general equations for a multi-body space system with internal control forces are written. Single body, or 'local', equations of motion are written and then they are transformed into global equations, associated with a sufficient number of 'internal' equations describing the relative motions of the various parts of the system. In such a transformation, quantities of two orders of magnitude arise: the first group is associated with the Earth's equatorial radius, and the second group is associated with a characteristic length of the spacecraft. The two groups are separated in order to avoid round-off errors. Furthermore, a law of control associated with deformations of the connections between the elements of the system is introduced, in such a way that efficient control of instability phenomena may be possible. Numerical examples complete the work.
On Possible Application of Smart Structures to Control of Space Systems / F., Betti; Gasbarri, Paolo; Gaudenzi, Paolo; G. M., Saggiani; P., Santini. - STAMPA. - (1992), pp. 1-13. (Intervento presentato al convegno AGARD. 75th Stuctures And Materials Panel Meeting tenutosi a , Lindau, Germany nel April 1993).
On Possible Application of Smart Structures to Control of Space Systems
GASBARRI, Paolo;GAUDENZI, Paolo;
1992
Abstract
The general equations for a multi-body space system with internal control forces are written. Single body, or 'local', equations of motion are written and then they are transformed into global equations, associated with a sufficient number of 'internal' equations describing the relative motions of the various parts of the system. In such a transformation, quantities of two orders of magnitude arise: the first group is associated with the Earth's equatorial radius, and the second group is associated with a characteristic length of the spacecraft. The two groups are separated in order to avoid round-off errors. Furthermore, a law of control associated with deformations of the connections between the elements of the system is introduced, in such a way that efficient control of instability phenomena may be possible. Numerical examples complete the work.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
