An active damping augmentation approach using active members in a structural system is described. The problem of maximizing the vibration damping in a lightly damped structural system is considered using the analogy of impedance matching between the load and source impedances in an electrical network. The proposed active damping augmentation approach therefore consists of finding the desired active member impedances that maximize the vibration damping, and designing a feedback control in order to achieve desired active member impedances. This study uses a bridge feedback concept that feeds back a combination of signals from sensors of the axial force and relative velocity across the active member to realize the desired active member impedance. The proposed active damping augmentation approach and bridge feedback concept were demonstrated on a three-longeron softly suspended truss structure.
Active member bridge feedback control for damping augmentation
Journal of Guidance, Control, and Dynamics ; 15 , 5, Se
1992-10-01
Miscellaneous
No indication
English
Bridge feedback for active damping augmentation
AIAA | 1990
|RMS Active Damping Augmentation
NTIS | 1992
|RMS Active Damping Augmentation
NTRS | 1991
|