A new type of actuation device has been conceptualized that meets the needs of large 1) displacement, 2) force and 3) bandwidth within a package more compact than currently available magnetostrictive and stack-type piezo actuators of similar rating. The actuation mechanism relies on micro-scale electrohydrodynamic (EHD) pumping of a dielectric liquid with a small concentration of free charges. Analytical and numerical studies have shown the EHD-pumped actuator to be capable of delivering equal force and bandwidth to magnetostrictive and stack-type piezo actuators of the same size, but with considerably greater displacement. Research is proposed to further analyze the new concept to establish a parametric understanding of the actuator with respect to geometry, fluid, and temperature constraints. Research is also proposed to experimentally verify the viability of the promising concept. A multitude of prototypes will be designed, fabricated, and tested to provide experimental benchmarking of the model predictions. It is envisioned that 1) tools for the design, fabrication, and deployment of the EHD pumped actuator, 2) working prototypes providing force, bandwidth, and size capabilities superior to comparable magnetostrictive and piezo type devices will be developed. It is expected that these actuators will substantially impact the field of active sound and vibration control

Project Start
Project End
Budget Start
2001-09-15
Budget End
2005-08-31
Support Year
Fiscal Year
2001
Total Cost
$199,934
Indirect Cost
Name
University of Dayton
Department
Type
DUNS #
City
Dayton
State
OH
Country
United States
Zip Code
45469