Jeffrey A. Zapfe

Ph.D.

12/95

Prediction of Damping in Laminated Beams Using a Discrete Layer Finite Element Model and an Iterative Full Domain Smeared Laminate Model

Kiran Govindswamy

Ph.D.

12/95

Modeling of Strain-, Temperature-, and Frequency-Dependent Properties of Elastomeric Damper and Bearing Materials (co-advisor)

Suresh Pai

Ph.D.

12/96

Detecting Buckling in Filament-Wound Cylinders using Embedded Fiber-Optic Sensors (co-chair)

Christopher Davis

Ph.D.

12/97

A Tunable Solid State Piezoceramic Vibration Absorber

Shridhar Yarlagadda

Ph.D.

12/99

Resistively Shunted Piezocomposites for Passive Damping

Razvan Rusovici

Ph.D.

5/00

Dynamic Effects of an Elastomeric O-Ring in a Hopkinson Bar (co-advisor; Virginia Tech degree program)

Christian Brackbill

Ph.D.

12/00

Effects of Nonlinear Elastomeric Damper Behavior on Rotor Dynamics (co-advisor)

Julien Bernard

Ph.D.

5/01

Design and Realization of Actively Tunable Sonar Transducers

Jeremy Frank

Ph.D.

5/01

Design and Development of Piezoelectric Motors (co-advisor)

Hao Kang

Ph.D.

8/01

Rotor Blade Lag Damping Using Embedded Chordwise Absorbers (co-advisor)

Fuh-Wen Shiue

Ph.D.

12/01

Virtual Containment of Composite Flywheels for Integrated Power and Attitude Control of Spacecraft (co-advisor)

Joe Szefi

Ph.D.

8/03

Helicopter Gearbox Isolation Using Periodically Layered Fluidic Isolators (co-advisor)

Mike Yang

Ph.D.

8/03

Development of Master Design Curves for Particle Impact Dampers (co-advisor)

Jacob Loverich

Ph.D.

8/04

High Power Density Piezoelectric Motor with Hybrid Clamps (co-advisor)

Deepak Ramrakhyani

Ph.D.

5/05

Tendon-Actuated Compliant Truss for Morphing Aircraft Structures

Michael Thiel

Ph.D.

5/09

Actuation for an Active Gurney Flap for Rotorcraft

Shridhar Yarlagadda

M.S.

12/91

Fiber Contribution to Flexural Damping of Polymer-Matrix Composites

Kiran Govindswamy

M.S.

5/92

A Subresonant Method for Measuring Material Damping in Low-Frequency Uniaxial Vibration

Christopher Davis

M.S.

3/93

Frequency-Shaped Passive Damping using Resistively-Shunted Piezoceramics

Tom Manning

M.S.

8/93

Design, Manufacture, and Testing of Volume Scanning Mechanisms for LIDAR and RADAR Sounder

Emanuele Bianchini

M.S.

12/93

Dynamic Modeling of Viscoelastic Materials and Structures using Anelastic Displacement Fields

Scott Parent

M.S.

12/94

Validated Modeling of Space Truss Dynamics

Michael Beale

M.S.

8/95

Characterization of the Amplitude-Dependent Dynamic Behavior of Elastomeric Materials used in Rotorcraft Lag Dampers (co-advisor)

Razvan Rusovici

M.S.

12/95

Modeling and Characterization of Inertial Piezoceramic Actuators

Moreshwar Deshpande

M.S.

8/95

Mechanical Interaction of an Embedded Induced Strain Actuator with a Host Composite Structure (co-advisor)

Brian Dershem

M.S.

5/96

Characterization of an Embeddable Induced Strain Actuator   (co-advisor)

Thomas Klein

M.S.

5/96

Effects of the Space Environment on the Dynamic Properties of Graphite/Epoxy Composites

Christian Brackbill

M.S.

12/96

Formulation and Validation of a Thermomechanical Model for Elastomeric Materials (co-advisor)

Lynn Byers

M.S.

5/97

Thermomechanical Characterization of Elastomeric Damper and Bearing Materials (co-advisor)

Tim Galante

M.S.

5/97

Design of a Piezoelectric Inchworm Actuator for Dynamic Forcing Capability (co-advisor)

Hao Sun

M.S.

5/98

Failure Modeling for Machinery Prognostics Using Component Damage Modes

Jeremy Frank

M.S.

5/98

Optimization of Inchworm Drive Signals for High Force Performance (co-advisor)

Julien Bernard

M.S.

7/98

Dynamic Force Isolation using Piezoelectric Proof Mass Actuation (co-advisor)

Kati Hufnagel

M.S.

7/98

Dynamic Analysis of Stiffened Panel Structures Using Component Mode Synthesis (co-advisor)

L. Eric Ruhl

M.S.

9/98

Characterization and Modeling of the Thermo-Mechanical Behavior of Elastomers in the Low Dynamic Strain Regime (co-advisor)

Chad Hébert

M.S.

12/98

Frequency-Agile Piezoceramic Transducers Obtained Through Application of In-Plane Loads

Sumit Sarkar

M.S.

12/98

Two-Dimensional Finite Element Modeling of Elastomeric Components to Capture Pre-Stress Behavior (co-advisor)

Joe Szefi

M.S.

5/00

High Frequency Dynamic Behavior of Elastomeric Mounts (co-advisor)

David Ericson

M.S.

5/02

Use of Superelastic SMA as a High-Strain-Capable Structural Material in Adaptive Structures (co-advisor)

Deepak Ramrakhyani

M.S.

5/02

An Efficient Nonlinear Model of Dynamic Elastomer Behavior using Fractional Derivatives and Plastic Yielding (co-advisor)

Geff Ottman

M.S.

5/02

A Standalone Piezoelectric Energy Harvesting Circuit for Wireless, Remote Power Supply (co-advisor)

Jacob Loverich

M.S.

8/02

A Reversible, Linear Mechanical Diode for High Power Density Piezoelectric Motors (co-advisor)

Tom Leffler

M.S.

8/03

Mechanical Fusing for Predictable Failure of Composite Flywheels (co-advisor)

Kristin Culler

M.S.

12/03

Active Isolation using a Piezoelectric Stack with Motion Amplification

Jason Petrie

M.S.

5/04

Blade-Embedded Vibration Absorber for Rotorcraft Lag Damping (co-advisor)

Sanjiv Ramachandran

M.S.

5/04

Nonlinear Dynamics and Damping Performance of an Impact Damper

François LeHen

M.S.

5/05

An Actively-Tuned Periodically-Layered Fluid-Elastic Mount for Helicopter Gearbox Vibration Isolation (co-advisor)

Michael Thiel

M.S.

5/06

Actuation for an Active Gurney Flap for Rotorcraft

Jamie Browne

M.S.

5/07

Scaling of Structural Concepts for Morphing Airframes

Jeffrey Kauffman

M.S.

5/07

Piezoelectric Vibration Energy Harvesting for Wireless Sensor Nodes

Bob Grogan

B.S.

5/92

Thermally-Induced Vibration of Flexible Spacecraft Solar Array Booms

Tom Reising

B.S.

8/92

Experimental Determination of Resonant Frequencies and Damping of Graphite/BMI Plates

Albert Turney

B.S.

12/94

Visualization of Wave Propagation in a Viscoelastic Rod

Andrew Foose

B.S.

12/95

Redesign of the Bell/Boeing V-22 "Osprey" FS-535 Cargo Floor Frame

Tom Leffler

B.S.

5/97

A Virtual Containment System for Spacecraft Energy Storage and Momentum Management (co-advisor)

Smith Thepvongs

B.S.

5/02

A Piezoelectric Bender for Gurney Flap Actuation

Tom Jakub

B.S.

5/03

Active Isolation of Flywheel Vibration using Piezoelectric Mounts

Alicia Cole-Quigley

B.S.

5/04

Modeling of Non-Linear Solar Sail Deformation

Jamie Browne

B.S.

12/04

Actuation for Morphing Aircraft Structures