Bridge feedback for active damping augmentationA method is described for broadband damping augmentation of a structural system in which the active members (with feedback control) were developed such that their mechanical input impedance can be electrically adjusted to maximize the energy dissipation rate in the structural system. The active member consists of sensors, an actuator, and a control scheme. A mechanical/electrical analogy is described to model the passive structures and the active members in terms of their impedance representation. As a result, the problem of maximizing dissipative power is analogous to the problem of impedance matching in the electrical network. Closed-loop performance was demonstrated for single- and multiple-active-member controlled truss structure.
Document ID
19900039768
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chen, G.-S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)