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Piezoelectric polymers actuators for precise shape control of large scale space antennas

Show simple item record Chen, Qin Natale, Don Neese, Bret Ren, Kailiang Lin, Minren Zhang, Q. M. Pattom, Matthew Wang, K. W. Fang, Houfei Im, Eastwood 2007-07-25T17:25:45Z 2007-07-25T17:25:45Z 2007-03-18
dc.identifier.citation SPIE Smart Structures and Materials & Nondestruvtive Evaluation and Health Monitoring, San Diego, California, March 18-22, 2007. en
dc.identifier.clearanceno 07-0607
dc.description.abstract Extremely large, lightweight, in-space deployable active and passive microwave antennas are demanded by future space missions. This paper investigates the development of PVDF based piezopolymer actuators for controlling the surface accuracy of a membrane reflector. Uniaxially stretched PVDF films were poled using an electrodeless method which yielded high quality poled piezofilms required for this application. To further improve the piezoperformance of piezopolymers, several PVDF based copolymers were examined. It was found that one of them exhibits nearly three times improvement in the in-plane piezoresponse compared with PVDF and P(VDF-TrFE) piezopolymers. Preliminary experimental results indicate that these flexible actuators are very promising in controlling precisely the shape of the space reflectors. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 287122 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007. en
dc.subject deployable antenna en
dc.subject shape controls en
dc.subject electroactive polymers (EAP) en
dc.subject actuators en
dc.subject piezoelectric en
dc.title Piezoelectric polymers actuators for precise shape control of large scale space antennas en
dc.type Preprint en

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