Daniel Geiyer

Dissertation: Chaotification as a Means of Broadband Energy Harvesting with Piezoelectric Materials Advisor: Dr. Jeffrey L. Kauffman Markedly improved the operating bandwidth and power capability of piezoelectric energy harvesters through nonlinearity. Main contributions work towards a reduced dependence on batteries in low-power sensing and control systems.

Advanced the design of a clearance controller that preserved the blade tip distance from the shroud during high g maneuvers where blade deflection temporarily reduced turbine efficiency. The design was to be integrated into a proprietary Pratt and Whitney military jet engine in the F100 family.

Hired to contribute to 3 experimental projects centered around piezoelectric materials. Smart materials were implemented to reduce the number of moving parts which allowed for easier maintenance and less failure modes. The projects were intended for use in harsh environments like humid, high temperature steam pipes, Venus, and Mars.

Modal analysis, vibrations, control systems, energy harvesting, smart materials

Control systems