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Journal Articles

Computing Marginal Cost of Durability of Energy Systems Components by Structural Optimization With Fatigue Constraints

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Felipe M. Pasquali, John F. Hall
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Technical Briefs
J. Energy Resour. Technol. June 2022, 144(6): 064501.
Paper No: JERT-21-1470
https://doi.org/10.1115/1.4052038
Published Online: August 24, 2021
View Articletitled, Computing Marginal Cost of Durability of Energy Systems Components by Structural Optimization With Fatigue Constraints
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Topics: Design, Durability, Fatigue, Wind turbines, Damage
Proceedings Papers

Decision-Based Design Method for Computing Marginal Cost of Durability

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Felipe M. Pasquali, Jonatan Meza, John F. Hall
Proc. ASME. IDETC-CIE2020, Volume 6: 25th Design for Manufacturing and the Life Cycle Conference (DFMLC), V006T06A023, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22511
https://doi.org/10.1115/DETC2020-22511
View Paper titled, Decision-Based Design Method for Computing Marginal Cost of Durability
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Topics: Design methodology, Durability, Economics , Wind turbines, Design, Fatigue damage, Formal methods, Optimization
Proceedings Papers

Rule of Mixtures Model for 3D Printed Kevlar Reinforced Nylon: Determination of Volume Fraction Using Thermal Gravimetric Analysis

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Anosh P. Amaria, Jason N. Armstrong, Felipe M. Pasquali, John F. Hall
Proc. ASME. IDETC-CIE2020, Volume 11A: 46th Design Automation Conference (DAC), V11AT11A032, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22506
https://doi.org/10.1115/DETC2020-22506
View Paper titled, Rule of Mixtures Model for 3D Printed Kevlar Reinforced Nylon: Determination of Volume Fraction Using Thermal Gravimetric Analysis
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Topics: Additive manufacturing, Fibers, Nylon fabrics, Thermogravimetry
Journal Articles

Control Framework and Integrative Design Method for an Adaptive Wind Turbine Blade

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Hamid Khakpour Nejadkhaki, John F. Hall
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. October 2020, 142(10): 101001.
Paper No: DS-19-1483
https://doi.org/10.1115/1.4047098
Published Online: May 25, 2020
View Articletitled, Control Framework and Integrative Design Method for an Adaptive Wind Turbine Blade
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Topics: Blades, Design, Shapes, Wind, Wind turbines, Wind velocity, Actuators
Proceedings Papers

Optimization Model for Owner-Based Microgrids Using LSTM Predicted Demand for Rural Development

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Anosh P. Amaria, Ryan Nguyen, Joshua A. Davison, Souma Chowdhury, John F. Hall
Proc. ASME. IDETC-CIE2019, Volume 2A: 45th Design Automation Conference, V02AT03A025, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97964
https://doi.org/10.1115/DETC2019-97964
View Paper titled, Optimization Model for Owner-Based Microgrids Using LSTM Predicted Demand for Rural Development
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Topics: Microgrids, Optimization
Proceedings Papers

Rule of Mixtures Model to Determine Elastic Modulus and Tensile Strength of 3D Printed Carbon Fiber Reinforced Nylon

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Kaiyue Deng, Hamid Khakpour Nejadkhaki, Felipe M. Pasquali, Anosh P. Amaria, Jason N. Armstrong, John F. Hall
Proc. ASME. IDETC-CIE2019, Volume 2A: 45th Design Automation Conference, V02AT03A039, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-98024
https://doi.org/10.1115/DETC2019-98024
View Paper titled, Rule of Mixtures Model to Determine Elastic Modulus and Tensile Strength of 3D Printed Carbon Fiber Reinforced Nylon
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Topics: Additive manufacturing, Carbon fibers, Elastic moduli, Nylon fabrics, Tensile strength
Journal Articles

Weighted Least Squares Approach for an Adaptive Aerodynamic Engineered Structure With Twist Transformation

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Fuzhao Mou, Hamid Khakpour Nejadkhaki, Aaron Estes, John F. Hall
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. May 2019, 141(5): 051207.
Paper No: JERT-18-1502
https://doi.org/10.1115/1.4042642
Published Online: February 18, 2019
View Articletitled, Weighted Least Squares Approach for an Adaptive Aerodynamic Engineered Structure With Twist Transformation
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Topics: Actuators, Blades, Stiffness, Wind velocity, Design, Optimization
Proceedings Papers

Variable Twist Blade Transformation to Improve Wind Turbine Performance

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Hamid Khakpour Nejadkhaki, John F. Hall
Proc. ASME. IMECE2018, Volume 6B: Energy, V06BT08A042, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-88433
https://doi.org/10.1115/IMECE2018-88433
View Paper titled, Variable Twist Blade Transformation to Improve Wind Turbine Performance
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Topics: Blades, Wind turbines, Actuators, Shapes, Shells, Stiffness, Design, Geometry, Stress, Wind velocity
Proceedings Papers

Integrative Modeling Platform for Design and Control of an Adaptive Wind Turbine Blade

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Hamid Khakpour Nejadkhaki, John F. Hall, Minghui Zheng, Teng Wu
Proc. ASME. DSCC2018, Volume 2: Control and Optimization of Connected and Automated Ground Vehicles; Dynamic Systems and Control Education; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Energy Systems; Estimation and Identification; Intelligent Transportation and Vehicles; Manufacturing; Mechatronics; Modeling and Control of IC Engines and Aftertreatment Systems; Modeling and Control of IC Engines and Powertrain Systems; Modeling and Management of Power Systems, V002T28A005, September 30–October 3, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2018-9235
https://doi.org/10.1115/DSCC2018-9235
View Paper titled, Integrative Modeling Platform for Design and Control of an Adaptive Wind Turbine Blade
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Topics: Blades, Design, Modeling, Wind turbines, Stress, Simulation models, Real-time control, Wind, Actuators, Dynamic systems
Proceedings Papers

Integrative Control and Design Framework for an Actively Variable Twist Wind Turbine Blade to Increase Efficiency

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Hamid Khakpour Nejadkhaki, John F. Hall
Proc. ASME. IDETC-CIE2018, Volume 2A: 44th Design Automation Conference, V02AT03A004, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-86098
https://doi.org/10.1115/DETC2018-86098
View Paper titled, Integrative Control and Design Framework for an Actively Variable Twist Wind Turbine Blade to Increase Efficiency
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Topics: Blades, Design, Wind turbines, Shapes, Actuators, Stiffness, Design engineering, Wind velocity, Additive manufacturing, Algorithms
Proceedings Papers

A Method for Evaluating Maintenance Capabilities in a Developing Community Using a Multiple DSM Framework

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Ammar Nik Mutasim, Dillan Sayers, Felipe M. Pasquali, John F. Hall
Proc. ASME. IDETC-CIE2018, Volume 4: 23rd Design for Manufacturing and the Life Cycle Conference; 12th International Conference on Micro- and Nanosystems, V004T05A026, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-86080
https://doi.org/10.1115/DETC2018-86080
View Paper titled, A Method for Evaluating Maintenance Capabilities in a Developing Community Using a Multiple DSM Framework
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Topics: Maintenance, Maintainability, Decision making, Design, Energy sustainability
Journal Articles

Modeling and Design Method for an Adaptive Wind Turbine Blade With Out-of-Plane Twist

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Hamid Khakpour Nejadkhaki, John F. Hall
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. October 2018, 140(5): 051010.
Paper No: SOL-17-1491
https://doi.org/10.1115/1.4040104
Published Online: May 29, 2018
View Articletitled, Modeling and Design Method for an Adaptive Wind Turbine Blade With Out-of-Plane Twist
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Topics: Blades, Design, Wind turbines, Wind velocity, Design engineering, Optimization, Actuators, Shapes, Stiffness
Proceedings Papers

A Flexible Wind Turbine Blade With an Actively Variable Twist Distribution to Increase Region 2 Efficiency: Design and Control

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Hamid Khakpour Nejadkhaki, John F. Hall
Proc. ASME. DSCC2017, Volume 3: Vibration in Mechanical Systems; Modeling and Validation; Dynamic Systems and Control Education; Vibrations and Control of Systems; Modeling and Estimation for Vehicle Safety and Integrity; Modeling and Control of IC Engines and Aftertreatment Systems; Unmanned Aerial Vehicles (UAVs) and Their Applications; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Control of Smart Buildings and Microgrids; Energy Systems, V003T40A006, October 11–13, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2017-5282
https://doi.org/10.1115/DSCC2017-5282
View Paper titled, A Flexible Wind Turbine Blade With an Actively Variable Twist Distribution to Increase Region 2 Efficiency: Design and Control
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Topics: Blades, Design, Wind turbines, Actuators, Stiffness, Additive manufacturing, Shapes, Simulation results, Wind velocity, Algorithms
Proceedings Papers

A Design Methodology for a Flexible Wind Turbine Blade With an Actively Variable Twist Distribution to Increase Region 2 Efficiency

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Hamid Khakpour Nejadkhaki, John F. Hall
Proc. ASME. IDETC-CIE2017, Volume 2A: 43rd Design Automation Conference, V02AT03A025, August 6–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-68302
https://doi.org/10.1115/DETC2017-68302
View Paper titled, A Design Methodology for a Flexible Wind Turbine Blade With an Actively Variable Twist Distribution to Increase Region 2 Efficiency
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Topics: Blades, Design methodology, Wind turbines, Design, Actuators, Geometry, Additive manufacturing, Shapes, Wind velocity, Algorithms
Proceedings Papers

A Framework for Wind Energy Conversion to Promote Sustainability in Product Design

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Zachary Ball, Joe Szabo, Felipe M. Pasquali, John F. Hall
Proc. ASME. IDETC-CIE2017, Volume 7: 29th International Conference on Design Theory and Methodology, V007T06A040, August 6–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-68393
https://doi.org/10.1115/DETC2017-68393
View Paper titled, A Framework for Wind Energy Conversion to Promote Sustainability in Product Design
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Topics: Product design, Sustainability, Wind energy, Tradeoffs, Green design, Columns (Structural), Noise (Sound), Wind velocity, Carbon dioxide, Design
Journal Articles

A Methodology to Synthesize Gearbox and Control Design for Increased Power Production and Blade Root Stress Mitigation in a Small Wind Turbine

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Hamid Khakpour Nejadkhaki, Amrita Lall, John F. Hall
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. August 2017, 139(8): 081404.
Paper No: MD-16-1605
https://doi.org/10.1115/1.4036998
Published Online: June 27, 2017
View Articletitled, A Methodology to Synthesize Gearbox and Control Design for Increased Power Production and Blade Root Stress Mitigation in a Small Wind Turbine
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Topics: Blades, Design, Energy generation, Gears, Stress, Wind turbines, Wind velocity, Rotors, Wind, Mechanical drives
Journal Articles

A Design Framework for Optimizing the Mechanical Performance, Cost, and Environmental Impact of a Wind Turbine Tower

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Daniel Stratton, Daniel Martino, Felipe M. Pasquali, Kemper Lewis, John F. Hall
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. August 2016, 138(4): 041008.
Paper No: SOL-15-1176
https://doi.org/10.1115/1.4033500
Published Online: May 12, 2016
View Articletitled, A Design Framework for Optimizing the Mechanical Performance, Cost, and Environmental Impact of a Wind Turbine Tower
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Topics: Design, Wind turbines, Optimization, Stress, Wind, Equipment performance
Journal Articles

An Integrated Control and Design Framework for Optimizing Energy Capture and Component Life for a Wind Turbine Variable Ratio Gearbox

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John F. Hall, Dushyant Palejiya, Mohamed L. Shaltout, Dongmei Chen
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. April 2015, 137(2): 021022.
Paper No: SOL-13-1235
https://doi.org/10.1115/1.4029812
Published Online: April 1, 2015
View Articletitled, An Integrated Control and Design Framework for Optimizing Energy Capture and Component Life for a Wind Turbine Variable Ratio Gearbox
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Topics: Design, Gears, Mechanical drives, Wind turbines, Wind, Energy generation
Journal Articles

Optimal Control of a Wind Turbine With a Variable Ratio Gearbox for Maximum Energy Capture and Prolonged Gear Life

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Mohamed L. Shaltout, John F. Hall, Dongmei Chen
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. August 2014, 136(3): 031007.
Paper No: SOL-12-1189
https://doi.org/10.1115/1.4026676
Published Online: March 4, 2014
View Articletitled, Optimal Control of a Wind Turbine With a Variable Ratio Gearbox for Maximum Energy Capture and Prolonged Gear Life
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Topics: Gear teeth, Gears, Mechanical drives, Weight (Mass), Wind, Wind turbines, Wind velocity, Energy generation, Design
Proceedings Papers

Wind Turbine Gearbox Control for Maximum Energy Capture and Prolonged Gear Life

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Mohamed L. Shaltout, Nanzhu Zhao, John F. Hall, Dongmei Chen
Proc. ASME. DSCC2012-MOVIC2012, Volume 3: Renewable Energy Systems; Robotics; Robust Control; Single Track Vehicle Dynamics and Control; Stochastic Models, Control and Algorithms in Robotics; Structure Dynamics and Smart Structures; Surgical Robotics; Tire and Suspension Systems Modeling; Vehicle Dynamics and Control; Vibration and Energy; Vibration Control, 33-39, October 17–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2012-MOVIC2012-8719
https://doi.org/10.1115/DSCC2012-MOVIC2012-8719
View Paper titled, Wind Turbine Gearbox Control for Maximum Energy Capture and Prolonged Gear Life
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Topics: Gears, Mechanical drives, Wind turbines, Energy generation, Gear teeth, Service life (Equipment), Simulation results, Wind, Wind energy, Wind velocity