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Michael W. Shafer
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Proceedings Papers

A Novel Biomimetic Torsional Actuator Design Using Twisted Polymer Actuators

Michael W. Shafer, Heidi P. Feigenbaum, Diego Ricardo Higueras Ruiz
Proc. ASME. SMASIS2017, Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies, V001T06A006, September 18–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2017-3803
https://doi.org/10.1115/SMASIS2017-3803
View Paper titled, A Novel Biomimetic Torsional Actuator Design Using Twisted Polymer Actuators
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Topics: Actuators, Biomimetics, Design, Polymers, Fibers, Manufacturing, Polymer chains, Muscle, Stress, Anisotropy
Proceedings Papers

First Steps in Modeling Thermal Actuation of Twisted Polymer Actuators Using Virgin Material Properties

Michael W. Shafer, Heidi P. Feigenbaum, Daniel Pugh, Matthew Fisher
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T06A017, September 28–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2016-9292
https://doi.org/10.1115/SMASIS2016-9292
View Paper titled, First Steps in Modeling Thermal Actuation of Twisted Polymer Actuators Using Virgin Material Properties
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Topics: Actuators, Materials properties, Modeling, Polymers, Fibers, Polymer fibers, Stiffness, Anisotropy, Annealing, Design
Proceedings Papers

A Sub-Surface Model of Solar Power for Distributed Marine Sensor Systems

Gregory G. Hahn, Jr., Eric R. Morgan, Michael W. Shafer
Proc. ASME. SMASIS2015, Volume 2: Integrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T07A023, September 21–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2015-9121
https://doi.org/10.1115/SMASIS2015-9121
View Paper titled, A Sub-Surface Model of Solar Power for Distributed Marine Sensor Systems
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Topics: Sensors, Solar power, Solar energy, Energy harvesting, Telemetry, Oceans, Photovoltaic cells, Absorption, Buoys, Data collection
Proceedings Papers

Energy Harvesting for Marine-Wildlife Monitoring

Michael W. Shafer, Eric Morgan
Proc. ASME. SMASIS2014, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T07A017, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7630
https://doi.org/10.1115/SMASIS2014-7630
View Paper titled, Energy Harvesting for Marine-Wildlife Monitoring
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Topics: Energy harvesting, Data collection, Solar power, Arches, Biology, Cycles, Energy budget (Physics), Energy consumption, Fluid dynamics, Hydrostatic pressure
Proceedings Papers

Marine Energy Harvesting Using Magnetohydrodynamic Power Generation

Eric R. Morgan, Michael W. Shafer
Proc. ASME. SMASIS2014, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T07A018, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7636
https://doi.org/10.1115/SMASIS2014-7636
View Paper titled, Marine Energy Harvesting Using Magnetohydrodynamic Power Generation
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Topics: Energy generation, Magnetohydrodynamics, Ocean energy, Generators, Fluids, Sensors, Magnetic fields, Fluid dynamics, Electric fields, Energy harvesting
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
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

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