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DEVELOPMENT OF AN AERODYNAMIC SYNTHETIC JET ACTUATOR BASED ON A PIEZOCERAMIC BUCKLED BEAM

dc.contributor.advisorFlatau, Alisonen_US
dc.contributor.authorClingman, Dan Johnen_US
dc.date.accessioned2007-02-01T20:23:37Z
dc.date.available2007-02-01T20:23:37Z
dc.date.issued2006-12-08en_US
dc.identifier.urihttp://hdl.handle.net/1903/4207
dc.description.abstractThis thesis documents the development of a synthetic jet actuator powered by an Enhanced Displacement (ED) motor based on piezoceramic bimorph beam operating in a post-buckled state. The motor is modeled using Lagrange's equations to capture the post-buckling beam dynamics and the dynamics of supporting elements of the motor. The fluid section of the actuator, including the air pressure and velocity within chamber, is modeled by a three-state adiabatic flow model. The motor and fluid models are coupled together to form a complete synthetic jet actuator model. An ED motor was fabricated and tested and shows that it produces eight times the energy compared to the same bimorph operated without a buckling load. Motor and model data agree well for both static and dynamic operation. The ED motor was installed in a synthetic jet actuator and demonstrated the ability to produce flows in excess of 15 m/sec with duty cycles varying between 2 Hz and 30 Hz. For these tests the drive signal used was a square wave and jet velocity was only mildly dependent of actuation frequency.en_US
dc.format.extent3599126 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleDEVELOPMENT OF AN AERODYNAMIC SYNTHETIC JET ACTUATOR BASED ON A PIEZOCERAMIC BUCKLED BEAMen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentAerospace Engineeringen_US
dc.subject.pqcontrolledEngineering, Aerospaceen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US


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