Supports – With condition responsive control means
Patent
1991-03-04
1992-10-20
Williams, Hezron E.
Supports
With condition responsive control means
73579, 73668, 318649, 318648, G05D 1501, G05D 1901
Patent
active
051563703
ABSTRACT:
Arrays of actuators are affixed to structural elements to impede the transmission of vibrational energy. A single pair is used to provide control of bending and extensional waves and two pairs are used to control torsional motion in addition to these two types of wave motion. The arrays are applied to a wide variety of structural elements such as a beam structure that is part of larger framework that may or may not support a rigid or non-rigid skin. Electrical excitation is applied to the actuators that generate forces on the structure. These electrical inputs may be adjusted in their amplitude and phase by a controller in communication with appropriate vibrational wave sensors to impede the flow of vibrational power in all of the above mentioned wave forms beyond the actuator location. Additional sensor elements can be used to monitor the performance and adjust the electrical inputs to maximize the attenuation of vibrational energy.
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Fuller Chris R.
Gibbs Gary P.
Silcox Richard J.
Finley Rose M.
Osborne Kevin B.
The United States of America as represented by the Administrator
Williams Hezron E.
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