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Proceedings Papers

Design of a Piezoelectric Caterpillar Motor

Tracy Pandell, Ephrahim Garcia
Proc. ASME. IMECE96, Aerospace, 627-648, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0678
https://doi.org/10.1115/IMECE1996-0678
View Paper titled, Design of a Piezoelectric Caterpillar Motor
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Topics: Design, Engines, Motors, Displacement, Engineering simulation, Flexure mechanisms, Matlab, Simulation
Proceedings Papers

Design Impact of Piezoelectric Actuator Nonlinearities

John A. Main, Ephrahim Garcia
Proc. ASME. IMECE96, Active Control of Vibration and Noise, 297-304, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0933
https://doi.org/10.1115/IMECE1996-0933
View Paper titled, Design Impact of Piezoelectric Actuator Nonlinearities
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Topics: Design, Piezoelectric actuators, Actuators, Feedback, Pressing
Proceedings Papers

Development of Piezoelectrically Actuated Elastodynamic Flapping Micro-Aerial Vehicles

Adam Cox, Daniel J. Monopoli, Michael Goldfarb, Ephrahim Garcia
Proc. ASME. IMECE99, Adaptive Structures and Material Systems, 257-262, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0552
https://doi.org/10.1115/IMECE1999-0552
View Paper titled, Development of Piezoelectrically Actuated Elastodynamic Flapping Micro-Aerial Vehicles
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Topics: Actuators, Bending (Stress), Degrees of freedom, Dynamics (Mechanics), Flexure mechanisms, Flight, Linkages, Materials properties, Motors, Piezoelectric actuators
Proceedings Papers

The Application of Probability Theory to Model Updating

Loukas Papadopoulos, Ephrahim Garcia
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT10A004, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4168
https://doi.org/10.1115/DETC97/VIB-4168
View Paper titled, The Application of Probability Theory to Model Updating
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Topics: Aluminum, Cantilevers, Eigenvalues, Engineering simulation, Errors, Finite element model, Mode shapes, Probability, Simulation, Statistics
Proceedings Papers

Finite Element Error Localization Using the Error Matrix Method

Michael Papadopoulos, Ephrahim Garcia
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT10A008, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4169
https://doi.org/10.1115/DETC97/VIB-4169
View Paper titled, Finite Element Error Localization Using the Error Matrix Method
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Topics: Errors, Finite element analysis, Degrees of freedom, Iterative methods, Nonlinear equations
Journal Articles

Effects of Bladder Geometry in Pneumatic Artificial Muscles

Erick Ball, Ephrahim Garcia
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. December 2016, 10(4): 041001.
Paper No: MED-14-1004
https://doi.org/10.1115/1.4033325
Published Online: August 5, 2016
View Article titled, Effects of Bladder Geometry in Pneumatic Artificial Muscles
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Topics: Muscle, Pressure, Actuators
Journal Articles

Generalized Solutions of Piezoelectric Vibration-Based Energy Harvesting Structures Using an Electromechanical Transfer Matrix Method

Timothy Reissman, Adam Wickenheiser, Ephrahim Garcia
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. August 2016, 138(4): 041001.
Paper No: VIB-14-1042
https://doi.org/10.1115/1.4033261
Published Online: May 4, 2016
View Article titled, Generalized Solutions of Piezoelectric Vibration-Based Energy Harvesting Structures Using an Electromechanical Transfer Matrix Method
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Topics: Energy harvesting, Frequency response, Mode shapes, Piezoelectricity, Vibration, Cantilevers, Design, Geometry
Proceedings Papers

Power Savings of a Variable Recruitment Hydraulic Artificial Muscle Actuation Scheme

Michael Meller, Ephrahim Garcia
Proc. ASME. SMASIS2014, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T06A017, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7718
https://doi.org/10.1115/SMASIS2014-7718
View Paper titled, Power Savings of a Variable Recruitment Hydraulic Artificial Muscle Actuation Scheme
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Topics: Muscle, Fibers, Valves, Actuators, Cylinders, Engines, Hydraulic drive systems, Motors, Pressure drop, Stress
Proceedings Papers

Toward Variable Recruitment Fluidic Artificial Muscles

Matthew Bryant, Michael A. Meller, Ephrahim Garcia
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T06A014, September 16–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2013-3136
https://doi.org/10.1115/SMASIS2013-3136
View Paper titled, Toward Variable Recruitment Fluidic Artificial Muscles
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Topics: Muscle, Actuators, Design, Stress, Biomimetics, Circuits, Engineering prototypes, Experimental characterization, Fibers, Manufacturing
Proceedings Papers

Testing of Vibrational Energy Harvesting on Flying Birds

Michael W. Shafer, Robert MacCurdy, Ephrahim Garcia
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T07A004, September 16–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2013-3063
https://doi.org/10.1115/SMASIS2013-3063
View Paper titled, Testing of Vibrational Energy Harvesting on Flying Birds
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Topics: Energy harvesting, Testing
Proceedings Papers

Energetic and Dynamic Effects of Operating Fluid on Fluidic Artificial Muscle Actuators

Michael A. Meller, Matthew J. Bryant, Ephrahim Garcia
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T06A019, September 16–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2013-3210
https://doi.org/10.1115/SMASIS2013-3210
View Paper titled, Energetic and Dynamic Effects of Operating Fluid on Fluidic Artificial Muscle Actuators
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Topics: Actuators, Fluids, Muscle, Damping, Compressed air, Compressibility, Dynamic response, Dynamic testing (Engineering), Elastic constants, Free vibrations
Journal Articles

The Power and Efficiency Limits of Piezoelectric Energy Harvesting

Michael W. Shafer, Ephrahim Garcia
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. April 2014, 136(2): 021007.
Paper No: VIB-13-1022
https://doi.org/10.1115/1.4025996
Published Online: December 24, 2013
View Article titled, The Power and Efficiency Limits of Piezoelectric Energy Harvesting
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Topics: Energy harvesting, Excitation, Resonance, Stress, Damping, Piezoelectric materials
Proceedings Papers

A Practical Power Maximization Design Guide for Piezoelectric Energy Harvesters Inspired by Avian Bio-Loggers

Michael W. Shafer, Matthew Bryant, Ephrahim Garcia
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 819-828, September 19–21, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2012-8071
https://doi.org/10.1115/SMASIS2012-8071
View Paper titled, A Practical Power Maximization Design Guide for Piezoelectric Energy Harvesters Inspired by Avian Bio-Loggers
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Topics: Design, Energy harvesting
Proceedings Papers

Investigation of Host Structure Compliance in Aeroelastic Energy Harvesting

Matthew Bryant, Ricky Tse, Ephrahim Garcia
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 769-775, September 19–21, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2012-7978
https://doi.org/10.1115/SMASIS2012-7978
View Paper titled, Investigation of Host Structure Compliance in Aeroelastic Energy Harvesting
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Topics: Energy harvesting, Flutter (Aerodynamics), Limit cycles, Oscillations, Vibration, Excitation, Flow (Dynamics), Fluid dynamics, Stress, Wind velocity
Proceedings Papers

Multi-Source Energy Harvesting Schemes With Piezoelectrics and Photovoltaics on an Avian Bio-Logger Draft

Alexander Schlichting, Michael Shafer, Ephrahim Garcia
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 859-867, September 19–21, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2012-8130
https://doi.org/10.1115/SMASIS2012-8130
View Paper titled, Multi-Source Energy Harvesting Schemes With Piezoelectrics and Photovoltaics on an Avian Bio-Logger Draft
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Topics: Energy harvesting, Photovoltaics, Solar energy, Cycles, Lithium
Proceedings Papers

Passive Multi-Source Energy Harvesting Schemes: Multiplicity of Piezoelectrics

Alexander Schlichting, Rashi Tiwari, Ephrahim Garcia
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 333-343, September 18–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2011-5150
https://doi.org/10.1115/SMASIS2011-5150
View Paper titled, Passive Multi-Source Energy Harvesting Schemes: Multiplicity of Piezoelectrics
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Topics: Energy harvesting, Circuits, Topology, Batteries, Capacitors, Engineering simulation, Sensors, Simulation, Simulation results, Storage
Proceedings Papers

Maximum and Practical Sustainably Harvestable Vibrational Power From Avian Subjects

Michael W. Shafer, Ephrahim Garcia
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 353-359, September 18–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2011-5167
https://doi.org/10.1115/SMASIS2011-5167
View Paper titled, Maximum and Practical Sustainably Harvestable Vibrational Power From Avian Subjects
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Topics: Energy harvesting, Flight
Proceedings Papers

Synergistic Wake Interactions in Aeroelastic Flutter Vibration Energy Harvester Arrays

Matthew Bryant, Ranjeev L. Mahtani, Ephrahim Garcia
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 271-277, September 18–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2011-5103
https://doi.org/10.1115/SMASIS2011-5103
View Paper titled, Synergistic Wake Interactions in Aeroelastic Flutter Vibration Energy Harvester Arrays
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Topics: Energy harvesting, Flutter (Aerodynamics), Vibration, Wakes, Oscillations, Flow (Dynamics), Locks (Waterways), Separation (Technology), Wind energy, Wind tunnels
Proceedings Papers

Energy Harvesting Circuit for Pulse Generator

Rashi Tiwari, Alex Schlichting, Yuan Zhang, Danielle Juliana Feldman, Ephrahim Garcia
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 215-222, September 18–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2011-5054
https://doi.org/10.1115/SMASIS2011-5054
View Paper titled, Energy Harvesting Circuit for Pulse Generator
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Topics: Circuits, Energy harvesting, Generators, Electronics, Signals, Batteries, Maintenance, Shrinkage (Materials), Solar energy, Vibration
Proceedings Papers

Investgation of Wake Effects in Aeroelastic Flutter Vibration Energy Harvesting

Matthew J. Bryant, Michael E. Isenberg, Ephrahim Garcia
Proc. ASME. SMASIS2010, ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 575-582, September 28–October 1, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2010-3772
https://doi.org/10.1115/SMASIS2010-3772
View Paper titled, Investgation of Wake Effects in Aeroelastic Flutter Vibration Energy Harvesting
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Topics: Energy harvesting, Flutter (Aerodynamics), Vibration, Wakes, Degrees of freedom, Design, Electric current, Flow (Dynamics), Fluid dynamics, Limit cycles