Invention Grant
- Patent Title: Piezoelectric fiber, active damped, composite electronic housings
- Patent Title (中): 压电纤维,主动阻尼,复合电子外壳
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Application No.: US11715034Application Date: 2007-03-07
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Publication No.: US07767944B2Publication Date: 2010-08-03
- Inventor: Andrew B. Facciano , Robert T. Moore , Gregg J. Hlavacek , Craig D. Seasly
- Applicant: Andrew B. Facciano , Robert T. Moore , Gregg J. Hlavacek , Craig D. Seasly
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Schwegman, Lundberg & Woessner P.A.
- Agent Gregory J. Gorrie
- Main IPC: F41G7/00
- IPC: F41G7/00 ; F42B15/10

Abstract:
A vibration controlled housing. The novel housing includes a housing structure and a mechanism for receiving a control signal and in accordance therewith electronically tuning a structural response of the structure. In an illustrative embodiment, the housing structure includes a composite material containing a plurality of piezoelectric fibers adapted to generate an electrical signal in response to a deformation in the structure and to deform the structure in response to an electrical signal applied thereto. A control circuit receives the sensed signal from the fibers and generates an excitation signal that is applied to the fibers to increase the stiffness or compliance of the fibers at predetermined frequencies. In an illustrative embodiment, the control signal is adapted to provide low frequency stiffness and strength performance while attenuating high frequency vibrations to protect electronics housed within the structure.
Public/Granted literature
- US20080217465A1 Piezoelectric fiber, active damped, composite electronic housings Public/Granted day:2008-09-11
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