Invention Grant
- Patent Title: Active 3D.O.F. stiffness element
- Patent Title (中): 主动3D.O.F. 刚度元素
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Application No.: US13500624Application Date: 2010-10-05
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Publication No.: US08653719B2Publication Date: 2014-02-18
- Inventor: Farid Al-Bender , El Said Mohamed Mohamed , Hendrik Van Brussel
- Applicant: Farid Al-Bender , El Said Mohamed Mohamed , Hendrik Van Brussel
- Applicant Address: BE Leuven
- Assignee: Katholieke Universiteit Leuven, K.U.Leuven R&D
- Current Assignee: Katholieke Universiteit Leuven, K.U.Leuven R&D
- Current Assignee Address: BE Leuven
- Agency: TraskBritt
- Priority: GB0917368.3 20091005; GB0917588.6 20091007; GB1009944.8 20100614
- International Application: PCT/BE2010/000069 WO 20101005
- International Announcement: WO2011/041858 WO 20110414
- Main IPC: H01L41/09
- IPC: H01L41/09 ; H02N2/00

Abstract:
A dynamic three-degree-of-freedom actuator/transducer element comprising at least three piezoceramic actuators and force sensors, as integrated stacks, which are preloaded in the housing by a low-stiffness tension bar, and are constrained, by means of a flexible shell, against shear force and torsion moment, whereby the element, when powered by external voltage source, is able to generate a dynamical axial force and displacement and dynamical bending and moment in the two principal tilt degrees of freedom around two orthogonal axes perpendicular to the principal displacement. When subjected to an axial force or a tilting moment, the transducer is able to generate charges that are proportional to the exerted force and moments.
Public/Granted literature
- US20120204550A1 ACTIVE 3D.O.F. STIFFNESS ELEMENT Public/Granted day:2012-08-16
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