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Journal Articles

A Dynamic Loading Mechanism for a Morphing Winglet

Raffi S. Buchkazanian, Gabriel H. Campos, Fengfeng (Jeff) Xi
Journal: Journal of Mechanisms and Robotics
Article Type: Technical Briefs
J. Mechanisms Robotics. October 2023, 15(5): 054501.
Paper No: JMR-22-1131
DOI: https://doi.org/10.1115/1.4055572
Published Online: November 24, 2022
View Article titled, A Dynamic Loading Mechanism for a Morphing Winglet
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Topics: Design, Dynamic testing (Materials), Stress, Actuators, Weight (Mass), Linkages
Proceedings Papers

Mechanical Design of a New Anthropomorphic Robot for Fastening in Wing-Box

Jiefeng Jiang, Fengfeng (Jeff) Xi, Jingjing You, Qunxing Xue
Proc. ASME. IDETC-CIE2021, Volume 8B: 45th Mechanisms and Robotics Conference (MR), V08BT08A016, August 17–19, 2021
Paper No: DETC2021-68098
DOI: https://doi.org/10.1115/DETC2021-68098
View Paper titled, Mechanical Design of a New Anthropomorphic Robot for Fastening in Wing-Box
Click here to open pdf in another window PDF for Mechanical Design of a New Anthropomorphic Robot for Fastening in Wing-Box
Topics: Design engineering, Humanoid robots, Shapes, Wings
Journal Articles

Modeling of a Complete Morphing Mechanism Covered by a Paneled Morphing Skin

Aaron Yu, Fengfeng (Jeff) Xi, Hamid Ghaemi, Bing Li
Journal: Journal of Mechanisms and Robotics
Article Type: Research Papers
J. Mechanisms Robotics. April 2021, 13(2): 021003.
Paper No: JMR-20-1240
DOI: https://doi.org/10.1115/1.4049441
Published Online: January 18, 2021
View Article titled, Modeling of a Complete Morphing Mechanism Covered by a Paneled Morphing Skin
Click here to open pdf in another window PDF for Modeling of a Complete Morphing Mechanism Covered by a Paneled Morphing Skin
Topics: Actuators, Design, Kinematics, Modeling, Shape memory polymers, Shapes, Skin, Simulation, Deformation
Journal Articles

Analysis and Control of an Actuation-Redundant Parallel Mechanism Requiring Synchronization

Fengfeng (Jeff) Xi, Amin Moosavian, Gabriel H. Campos, Upasana (Sana) Choudhuri, Cong Zhu (John) Sun, Raffi Buchkazanian
Journal: Journal of Mechanisms and Robotics
Article Type: Technical Briefs
J. Mechanisms Robotics. August 2020, 12(4): 044501.
Paper No: JMR-19-1217
DOI: https://doi.org/10.1115/1.4045653
Published Online: February 20, 2020
View Article titled, Analysis and Control of an Actuation-Redundant Parallel Mechanism Requiring Synchronization
Click here to open pdf in another window PDF for Analysis and Control of an Actuation-Redundant Parallel Mechanism Requiring Synchronization
Topics: Actuators, End effectors, Kinematics, Linkages, Rotation, Synchronization, Modeling, Parallel mechanisms, Stress, Engineering prototypes
Journal Articles

Design and Analysis of a Smart Rehabilitation Walker With Passive Pelvic Mechanism

Jiancheng (Charles) Ji, Shuai Guo, Fengfeng (Jeff) Xi, Leigang Zhang
Journal: Journal of Mechanisms and Robotics
Article Type: Research Papers
J. Mechanisms Robotics. June 2020, 12(3): 031007.
Paper No: JMR-19-1052
DOI: https://doi.org/10.1115/1.4045509
Published Online: January 13, 2020
View Article titled, Design and Analysis of a Smart Rehabilitation Walker With Passive Pelvic Mechanism
Click here to open pdf in another window PDF for Design and Analysis of a Smart Rehabilitation Walker With Passive Pelvic Mechanism
Topics: Design, Kinematics, Stability, Weight (Mass), Robots, Rotation, Modeling
Proceedings Papers

A Single Actuator Mechanism for Airfoil Shape Morphing

Andrew Ellis, Cong Zhu (John) Sun, Fengfeng (Jeff) Xi, Amin Moosavian
Proc. ASME. IDETC-CIE2018, Volume 5B: 42nd Mechanisms and Robotics Conference, V05BT07A008, August 26–29, 2018
Paper No: DETC2018-86115
DOI: https://doi.org/10.1115/DETC2018-86115
View Paper titled, A Single Actuator Mechanism for Airfoil Shape Morphing
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Topics: Actuators, Airfoils, Shapes, Linkages, Design, Design methodology, NACA airfoils
Proceedings Papers

Element Based Force Analysis of a Single Input-Multiple Output Linkage System

Cong Zhu (John) Sun, Fengfeng (Jeff) Xi, Amin Moosavian, Daniel J. Inman
Proc. ASME. IDETC-CIE2017, Volume 5A: 41st Mechanisms and Robotics Conference, V05AT08A043, August 6–9, 2017
Paper No: DETC2017-67468
DOI: https://doi.org/10.1115/DETC2017-67468
View Paper titled, Element Based Force Analysis of a Single Input-Multiple Output Linkage System
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Topics: Linkages, Actuators, Airfoils, Engineering simulation, Finite element methods, Finite element model, Simulation, Torque
Journal Articles

Slip Analysis for a Wheeled Mobile Manipulator

Tao Song, Fengfeng (Jeff) Xi, Shuai Guo, Xiaowei Tu, Xianhua Li
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. February 2018, 140(2): 021005.
Paper No: DS-17-1046
DOI: https://doi.org/10.1115/1.4037287
Published Online: September 20, 2017
View Article titled, Slip Analysis for a Wheeled Mobile Manipulator
Click here to open pdf in another window PDF for Slip Analysis for a Wheeled Mobile Manipulator
Topics: Manipulators, Riveting, Modeling
Journal Articles

Process Parameter Optimization of a Mobile Robotic Percussive Riveting System With Flexible Joints

Yuwen Li, Jiancheng Ji, Shuai Guo, Fengfeng (Jeff) Xi
Journal: Journal of Computational and Nonlinear Dynamics
Article Type: Research-Article
J. Comput. Nonlinear Dynam. November 2017, 12(6): 061005.
Paper No: CND-16-1486
DOI: https://doi.org/10.1115/1.4036196
Published Online: September 7, 2017
View Article titled, Process Parameter Optimization of a Mobile Robotic Percussive Riveting System With Flexible Joints
Click here to open pdf in another window PDF for Process Parameter Optimization of a Mobile Robotic Percussive Riveting System With Flexible Joints
Topics: Optimization, Riveting, Rivets, Robotics, Robots, Aerospace industry, Structural dynamics, End effectors, Manufacturing, Vibration
Journal Articles

A Shape-Morphing Mechanism With Sliding Panels

Aaron Yu, Fengfeng (Jeff) Xi, Amin Moosavian
Journal: Journal of Mechanisms and Robotics
Article Type: Research-Article
J. Mechanisms Robotics. August 2017, 9(4): 041001.
Paper No: JMR-16-1254
DOI: https://doi.org/10.1115/1.4036221
Published Online: April 20, 2017
View Article titled, A Shape-Morphing Mechanism With Sliding Panels
Click here to open pdf in another window PDF for A Shape-Morphing Mechanism With Sliding Panels
Topics: Modeling, Rotation, Shapes, Simulation, Skin, Linkages, Design
Journal Articles

Tip-Over Stability Analysis for a Wheeled Mobile Manipulator

Shuai Guo, Tao Song, Fengfeng (Jeff) Xi, Richard Phillip Mohamed
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. May 2017, 139(5): 054501.
Paper No: DS-15-1438
DOI: https://doi.org/10.1115/1.4035234
Published Online: March 10, 2017
View Article titled, Tip-Over Stability Analysis for a Wheeled Mobile Manipulator
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Topics: Manipulators, Stability, Stress, Modeling
Journal Articles

Dimensional Synthesis of a MultiLoop Linkage With Single Input Using Parameterized Curves

Amin Moosavian, Cong Zhu (John) Sun, Fengfeng (Jeff) Xi, Daniel J. Inman
Journal: Journal of Mechanisms and Robotics
Article Type: Research-Article
J. Mechanisms Robotics. April 2017, 9(2): 021007.
Paper No: JMR-16-1247
DOI: https://doi.org/10.1115/1.4035799
Published Online: March 9, 2017
View Article titled, Dimensional Synthesis of a MultiLoop Linkage With Single Input Using Parameterized Curves
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Topics: Airfoils, Design, Engineering prototypes, Linkages, Shapes, Simulation, Case studies
Journal Articles

Preferable Workspace for Fatigue Life Improvement of Flexible-Joint Robots Under Percussive Riveting

Yuwen Li, Shuai Guo, Fengfeng (Jeff) Xi
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. April 2017, 139(4): 041012.
Paper No: DS-15-1560
DOI: https://doi.org/10.1115/1.4035164
Published Online: February 13, 2017
View Article titled, Preferable Workspace for Fatigue Life Improvement of Flexible-Joint Robots Under Percussive Riveting
Click here to open pdf in another window PDF for Preferable Workspace for Fatigue Life Improvement of Flexible-Joint Robots Under Percussive Riveting
Topics: Endurance limit, Fatigue life, Riveting, Robotics, Robots, Stress, End effectors, Fatigue, Simulation, Rivets
Journal Articles

Design of a Multifunctional Flow Control Valve for Self-Circulating Hydraulic Cylinders

Amin Moosavian, Michael Rizoiu, Fengfeng (Jeff) Xi
Journal: Journal of Pressure Vessel Technology
Article Type: Design Innovation Paper
J. Pressure Vessel Technol. April 2017, 139(2): 025001.
Paper No: PVT-16-1016
DOI: https://doi.org/10.1115/1.4034877
Published Online: January 11, 2017
View Article titled, Design of a Multifunctional Flow Control Valve for Self-Circulating Hydraulic Cylinders
Click here to open pdf in another window PDF for Design of a Multifunctional Flow Control Valve for Self-Circulating Hydraulic Cylinders
Topics: Cylinders, Design, Hydraulic cylinders, Valves, Circuits, Flow control valves, Stress, Solenoids, Flow (Dynamics)
Proceedings Papers

A Single Input-Multiple Output Curve Adaptive Linkage Array

Amin Moosavian, Cong Zhu (John) Sun, Fengfeng (Jeff) Xi, Daniel J. Inman
Proc. ASME. IDETC-CIE2016, Volume 5B: 40th Mechanisms and Robotics Conference, V05BT07A057, August 21–24, 2016
Paper No: DETC2016-59893
DOI: https://doi.org/10.1115/DETC2016-59893
View Paper titled, A Single Input-Multiple Output Curve Adaptive Linkage Array
Click here to open pdf in another window PDF for A Single Input-Multiple Output Curve Adaptive Linkage Array
Topics: Linkages, Design, Shapes, Airfoils, Actuators, Adaptive structures, Aircraft, Case studies, Dimensions, Stiffness
Proceedings Papers

Design and Analysis of a Sliding Panel Shape Morphing Mechanism System

Aaron Yu, Fengfeng (Jeff) Xi
Proc. ASME. IDETC-CIE2016, Volume 5B: 40th Mechanisms and Robotics Conference, V05BT07A051, August 21–24, 2016
Paper No: DETC2016-59334
DOI: https://doi.org/10.1115/DETC2016-59334
View Paper titled, Design and Analysis of a Sliding Panel Shape Morphing Mechanism System
Click here to open pdf in another window PDF for Design and Analysis of a Sliding Panel Shape Morphing Mechanism System
Topics: Design, Shapes, Degrees of freedom, Linkages, Modeling, Wings
Journal Articles

Optimization of a Mobile Platform for a Wheeled Manipulator

Tao Song, Fengfeng (Jeff) Xi, Shuai Guo, Yu Lin
Journal: Journal of Mechanisms and Robotics
Article Type: Research-Article
J. Mechanisms Robotics. December 2016, 8(6): 061007.
Paper No: JMR-15-1348
DOI: https://doi.org/10.1115/1.4033855
Published Online: September 6, 2016
View Article titled, Optimization of a Mobile Platform for a Wheeled Manipulator
Click here to open pdf in another window PDF for Optimization of a Mobile Platform for a Wheeled Manipulator
Topics: Manipulators, Optimization, Stability, Wheels
Journal Articles

Reconfiguration Analysis of a Fully Reconfigurable Parallel Robot

Allan Daniel Finistauri, Fengfeng (Jeff) Xi
Journal: Journal of Mechanisms and Robotics
Article Type: Research-Article
J. Mechanisms Robotics. November 2013, 5(4): 041002.
Paper No: JMR-12-1044
DOI: https://doi.org/10.1115/1.4024734
Published Online: July 16, 2013
View Article titled, Reconfiguration Analysis of a Fully Reconfigurable Parallel Robot
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Topics: Mechanical admittance, Robots, Kinematics
Journal Articles

Dynamic Analysis for Robotic Integration of Tooling Systems

Yuwen Li, Jeff Xi, Richard Phillip Mohamed, Kamran Behdinan
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. July 2011, 133(4): 041002.
DOI: https://doi.org/10.1115/1.4003375
Published Online: April 6, 2011
View Article titled, Dynamic Analysis for Robotic Integration of Tooling Systems
Click here to open pdf in another window PDF for Dynamic Analysis for Robotic Integration of Tooling Systems
Topics: Robots, Tooling, Riveting, Robotics
Journal Articles

Adaptive Control of Pressure Tracking for Polishing Process

Liang Liao, Fengfeng Jeff Xi, Kefu Liu
Journal: Journal of Manufacturing Science and Engineering
Article Type: Research Papers
J. Manuf. Sci. Eng. February 2010, 132(1): 011015.
DOI: https://doi.org/10.1115/1.4000959
Published Online: February 2, 2010
View Article titled, Adaptive Control of Pressure Tracking for Polishing Process
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Topics: Adaptive control, Polishing, Pressure, Stress, Design, Control equipment