发明授权
- 专利标题: Dielectric elastomer actuated systems and methods
- 专利标题(中): 介质弹性体驱动系统和方法
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申请号: US10291217申请日: 2002-11-08
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公开(公告)号: US07411331B2公开(公告)日: 2008-08-12
- 发明人: Steven Dubowsky , Moustapha Hafez , Matthew Lichter , Peter Weiss , Andreas Wingert
- 申请人: Steven Dubowsky , Moustapha Hafez , Matthew Lichter , Peter Weiss , Andreas Wingert
- 申请人地址: US MA Boston
- 专利权人: Massachusetts Institute of Technology
- 当前专利权人: Massachusetts Institute of Technology
- 当前专利权人地址: US MA Boston
- 代理机构: Choate, Hall & Stewart LLP
- 主分类号: H02N1/00
- IPC分类号: H02N1/00
摘要:
The system of the present invention includes an actuator having at least two electrodes, an elastomeric dielectric film disposed between the two electrodes, and a frame attached to the elastomeric dielectric film. The frame provides a linear actuation force characteristic over a displacement range. The displacement range is preferably the stroke of the actuator. The displacement range can be about 5 mm and greater. Further, the frame can include a plurality of configurations, for example, at least a rigid members coupled to a flexible member wherein the frame provides an elastic restoring force. In preferred embodiments, the rigid member can be, but is not limited to, curved beams, parallel beams, rods and plates.In a preferred embodiment the actuator can further include a passive element disposed between two flexible members such as, for example, links to tune a stiffness characteristic of the actuator. The passive element can be a bi-stable element. Further, the actuator can include a plurality of layers of the elastomeric dielectric film integrated into the frame. The elastomeric film can be made of different materials such as, for example, acrylic, silicone and latex.
公开/授权文献
- US20030218403A1 Dielectric elastomer actuated systems and methods 公开/授权日:2003-11-27