发明授权
- 专利标题: Piezoelectric fiber, active damped, composite electronic housings
- 专利标题(中): 压电纤维,主动阻尼,复合电子外壳
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申请号: US11715034申请日: 2007-03-07
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公开(公告)号: US07767944B2公开(公告)日: 2010-08-03
- 发明人: Andrew B. Facciano , Robert T. Moore , Gregg J. Hlavacek , Craig D. Seasly
- 申请人: Andrew B. Facciano , Robert T. Moore , Gregg J. Hlavacek , Craig D. Seasly
- 申请人地址: US MA Waltham
- 专利权人: Raytheon Company
- 当前专利权人: Raytheon Company
- 当前专利权人地址: US MA Waltham
- 代理机构: Schwegman, Lundberg & Woessner P.A.
- 代理商 Gregory J. Gorrie
- 主分类号: F41G7/00
- IPC分类号: F41G7/00 ; F42B15/10
摘要:
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.
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