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Proceedings Papers

Influence of Q Angle on Patellofemoral Tracking During a Simulated Walking Cycle

Jennifer L. Pavlovic, Craig A. Bourgeault, Joan E. Bechtold, Ramon B. Gustilo, William K. Durfee, Steven J. Kirstukas
Proc. ASME. IMECE96, Advances in Bioengineering, 445-446, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-1306
https://doi.org/10.1115/IMECE1996-1306
View Paper titled, Influence of Q Angle on Patellofemoral Tracking During a Simulated Walking Cycle
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Topics: Cycles, Knee, Machinery, Simulation, Dislocations, Muscle, Rotation
Proceedings Papers

Relative Influence of Sensory Cues in a Multi-Modal Virtual Environment

Claudia M. Hendrix, Pi-Ming Cheng, William K. Durfee
Proc. ASME. IMECE99, Dynamic Systems and Control, 59-64, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0008
https://doi.org/10.1115/IMECE1999-0008
View Paper titled, Relative Influence of Sensory Cues in a Multi-Modal Virtual Environment
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Topics: Virtual reality, Haptics, Testing equipment, Degrees of freedom, Materials properties
Proceedings Papers

Pandemic Design: Protective Mask Utilizing Non-Endagered Components

Linsey Griffin, William K Durfee
Proc. ASME. DMD2021, 2021 Design of Medical Devices Conference, V001T04A010, April 12–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: DMD2021-1090
https://doi.org/10.1115/DMD2021-1090
View Paper titled, Pandemic Design: Protective Mask Utilizing Non-Endagered Components
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Topics: Design, Pandemics, Manufacturing, Health care, Diseases, Filtration, Respirators, Risk, Warfare
Proceedings Papers

Identification of Low Torque Step Sizes for the Design of a Single-Channel Muscle-Powered Hybrid Orthosis for People With Spinal Cord Injury

Yusra Farhat Ullah, William K. Durfee
Proc. ASME. DMD2020, 2020 Design of Medical Devices Conference, V001T03A008, April 6–9, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DMD2020-9092
https://doi.org/10.1115/DMD2020-9092
View Paper titled, Identification of Low Torque Step Sizes for the Design of a Single-Channel Muscle-Powered Hybrid Orthosis for People With Spinal Cord Injury
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Topics: Design, Muscle, Orthotics, Spinal cord, Torque, Wounds, Cycles, Brain, Machinery, Electric potential
Proceedings Papers

Experimentally Validated Models for Switching Energy of Low Pressure Drop Digital Valves for Lightweight Portable Hydraulic Robots

Saeed Hashemi, Hannah Mitchell, William K. Durfee
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A023, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1651
https://doi.org/10.1115/FPMC2019-1651
View Paper titled, Experimentally Validated Models for Switching Energy of Low Pressure Drop Digital Valves for Lightweight Portable Hydraulic Robots
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Topics: Hydraulics, Pressure, Pressure drop, Robots, Valves
Proceedings Papers

Low-Friction Antagonist Hydraulic Transmission Using Long-Stroke Rolling Diaphragm Cylinders

Saeed Hashemi, Steven Sobojinski, William K. Durfee
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A073, October 16–19, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2017-4348
https://doi.org/10.1115/FPMC2017-4348
View Paper titled, Low-Friction Antagonist Hydraulic Transmission Using Long-Stroke Rolling Diaphragm Cylinders
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Topics: Cylinders, Diaphragms (Mechanical devices), Diaphragms (Structural), Friction, Leakage, Actuators, Elastomers, Hydraulic cylinders, Hydraulic drive systems, Impulse (Physics)
Proceedings Papers

Optimization and Design Principles of a Minimal-Weight, Wearable Hydraulic Power Supply

Jonathan D. Nath, William K. Durfee
Proc. ASME. DSCC2017, Volume 1: Aerospace Applications; Advances in Control Design Methods; Bio Engineering Applications; Advances in Non-Linear Control; Adaptive and Intelligent Systems Control; Advances in Wind Energy Systems; Advances in Robotics; Assistive and Rehabilitation Robotics; Biomedical and Neural Systems Modeling, Diagnostics, and Control; Bio-Mechatronics and Physical Human Robot; Advanced Driver Assistance Systems and Autonomous Vehicles; Automotive Systems, V001T30A002, October 11–13, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2017-5046
https://doi.org/10.1115/DSCC2017-5046
View Paper titled, Optimization and Design Principles of a Minimal-Weight, Wearable Hydraulic Power Supply
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Topics: Design, Optimization, Weight (Mass), Pumps, Engines, Motors, Electric motors, Modeling, Batteries, Computer simulation
Proceedings Papers

Low Friction, Long-Stroke Rolling Diaphragm Cylinder for Passive Hydraulic Rehabilitation Robots

Saeed Hashemi, William K. Durfee
Proc. ASME. DMD2017, 2017 Design of Medical Devices Conference, V001T05A016, April 10–13, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DMD2017-3518
https://doi.org/10.1115/DMD2017-3518
View Paper titled, Low Friction, Long-Stroke Rolling Diaphragm Cylinder for Passive Hydraulic Rehabilitation Robots
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Topics: Cylinders, Diaphragms (Mechanical devices), Diaphragms (Structural), Friction, Robots, Actuators, Seals, Leakage, Pistons, Pressure
Proceedings Papers

Simulation Based Design of a Pediatric-Sized Hydraulic Ankle-Foot Orthosis

Brett Cullen Neubauer, William K. Durfee
Proc. ASME. DSCC2016, Volume 2: Mechatronics; Mechatronics and Controls in Advanced Manufacturing; Modeling and Control of Automotive Systems and Combustion Engines; Modeling and Validation; Motion and Vibration Control Applications; Multi-Agent and Networked Systems; Path Planning and Motion Control; Robot Manipulators; Sensors and Actuators; Tracking Control Systems; Uncertain Systems and Robustness; Unmanned, Ground and Surface Robotics; Vehicle Dynamic Controls; Vehicle Dynamics and Traffic Control, V002T21A006, October 12–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2016-9739
https://doi.org/10.1115/DSCC2016-9739
View Paper titled, Simulation Based Design of a Pediatric-Sized Hydraulic Ankle-Foot Orthosis
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Topics: Design, Orthotics, Pediatrics, Simulation, Stiffness, Additive manufacturing, Computers, Engineering prototypes, Health care, Manifolds
Proceedings Papers

Testing and Modeling of a Miniature Air Compressor for a Prototype Free-Piston Engine

Dustin L. Johnson, David B. Kittelson, William K. Durfee
Proc. ASME. FPMC2015, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, V001T01A061, October 12–14, 2015
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2015-9611
https://doi.org/10.1115/FPMC2015-9611
View Paper titled, Testing and Modeling of a Miniature Air Compressor for a Prototype Free-Piston Engine
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Topics: Air compressors, Engineering prototypes, Engines, Modeling, Pistons, Testing, Compressors, Cycles, Energy conservation, Flow (Dynamics)
Proceedings Papers

Experimentally Validated Models of O-Ring Seals for Tiny Hydraulic Cylinders

Jicheng Xia, William K. Durfee
Proc. ASME. FPMC2014, ASME/BATH 2014 Symposium on Fluid Power and Motion Control, V001T01A019, September 10–12, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2014-7825
https://doi.org/10.1115/FPMC2014-7825
View Paper titled, Experimentally Validated Models of O-Ring Seals for Tiny Hydraulic Cylinders
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Topics: Hydraulic cylinders, Seals, Cylinders, Leakage, Pistons, Stress, Friction, Hydraulic drive systems, Needle valves, Pressure
Journal Articles

Analysis of Small-Scale Hydraulic Actuation Systems

Jicheng Xia, William K. Durfee
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. September 2013, 135(9): 091001.
Paper No: MD-12-1020
https://doi.org/10.1115/1.4024730
Published Online: July 2, 2013
View Article titled, Analysis of Small-Scale Hydraulic Actuation Systems
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Topics: Cylinders, Weight (Mass), Pressure, Hydraulic drive systems, Pistons
Proceedings Papers

Actuation Timing Strategies for a Portable Powered Ankle Foot Orthosis

Emily A. Morris, K. Alex Shorter, Yifan Li, Elizabeth T. Hsiao-Wecksler, Geza F. Kogler, Timothy Bretl, William K. Durfee
Proc. ASME. DSCC2011, ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2, 807-814, October 31–November 2, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2011-6170
https://doi.org/10.1115/DSCC2011-6170
View Paper titled, Actuation Timing Strategies for a Portable Powered Ankle Foot Orthosis
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Topics: Orthotics, State estimation, Algorithms, Carbon dioxide, Feedback, Hardware, Pneumatic actuators, Sensors, Torque
Journal Articles

Next Generation of A Non-Invasive-Stimulated Muscle Force Assessment System to Study the ICU Patient

Hans F Ginz, Paul A Iaizzo, William K Durfee
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Frontiers Abstracts
J. Med. Devices. March 2012, 6(1): 017505.
https://doi.org/10.1115/1.4026683
Published Online: March 12, 2012
View Article titled, Next Generation of A Non-Invasive-Stimulated Muscle Force Assessment System to Study the ICU Patient
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Topics: Muscle
Journal Articles

Portable Pneumatically-Powered Ankle-Foot Orthosis

Elizabeth T. Hsiao-Wecksler, K. Alex Shorter, Yifan (David) Li, Geza F. Kogler, William K. Durfee
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Frontiers Abstracts
J. Med. Devices. March 2012, 6(1): 017593.
https://doi.org/10.1115/1.4026771
Published Online: March 12, 2012
View Article titled, Portable Pneumatically-Powered Ankle-Foot Orthosis
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Topics: Orthotics
Journal Articles

Design and Usability of a Home Telerehabilitation System to Train Hand Recovery Following Stroke

William K. Durfee, Samantha A. Weinstein, Ela Bhatt, Ashima Nagpal, James R. Carey
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research Papers
J. Med. Devices. December 2009, 3(4): 041003.
https://doi.org/10.1115/1.4000451
Published Online: November 19, 2009
View Article titled, Design and Usability of a Home Telerehabilitation System to Train Hand Recovery Following Stroke
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Topics: Computers, Design, Engines, Motors, Sensors, Trains, Telecommunications, Laptop computers
Proceedings Papers

Preliminary Design and Simulation of a Pneumatic, Stored-Energy, Hybrid Orthosis for Gait Restoration

William K. Durfee, Adam Rivard
Proc. ASME. IMECE2004, Fluid Power Systems and Technology, 235-241, November 13–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2004-60075
https://doi.org/10.1115/IMECE2004-60075
View Paper titled, Preliminary Design and Simulation of a Pneumatic, Stored-Energy, Hybrid Orthosis for Gait Restoration
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Topics: Design, Orthotics, Simulation, Cycles, Muscle, Simulation models, Conceptual design, Energy storage, Engineering prototypes, Fluids
Journal Articles

Design and Simulation of a Pneumatic, Stored-energy, Hybrid Orthosis for Gait Restoration

William K. Durfee, Adam Rivard
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2005, 127(6): 1014–1019.
https://doi.org/10.1115/1.2050652
Published Online: July 14, 2005
View Article titled, Design and Simulation of a Pneumatic, Stored-energy, Hybrid Orthosis for Gait Restoration
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Topics: Design, Energy storage, Engineering prototypes, Knee, Muscle, Orthotics, Simulation models, Springs, Simulation, Fluids