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Journal Articles

The Cavitation Issue in Asymmetrical Axial-Piston Pumps

Gustavo Koury Costa, Nariman Sepehri

J. Dyn. Sys., Meas., Control. May 2022, 144(5): 054501.

Paper No: DS-21-1150

DOI: https://doi.org/10.1115/1.4053295

Published Online: February 1, 2022

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Journal Articles

Optimization-Driven Controller Design for a High-Performance Electro-Hydrostatic Asymmetric Actuator Operating in All Quadrants

Khurram Butt, Gustavo Koury Costa, Nariman Sepehri

J. Dyn. Sys., Meas., Control. September 2021, 143(9): 094503.

Paper No: DS-20-1081

DOI: https://doi.org/10.1115/1.4050722

Published Online: May 13, 2021

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Topics: Actuators, Control equipment, Design, Optimization, Stress, Position control

Journal Articles

A Practical Approach for Designing Fault-Tolerant Position Controllers in Hydraulic Actuators: Methodology and Experimental Validation

Ali Maddahi, Nariman Sepehri, Witold Kinsner

J. Dyn. Sys., Meas., Control. August 2020, 142(8): 081001.

Paper No: DS-19-1209

DOI: https://doi.org/10.1115/1.4046336

Published Online: March 18, 2020

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Topics: Control equipment, Design, Errors, Leakage, Actuators, Wavelets

Proceedings Papers

Measuring the Losses of Hydrostatic Pumps and Motors: A Critical Review of ISO4409:2007

Peter Achten, Robin Mommers, Takao Nishiumi, Hubertus Murrenhoff, Nariman Sepehri, Kim Stelson, Jan-Ove Palmberg, Katharina Schmitz

Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A007, October 7–9, 2019

Paper No: FPMC2019-1615

DOI: https://doi.org/10.1115/FPMC2019-1615

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Topics: Hydrostatics, Motors, Pumps, Displacement, Bulk modulus, Energy conversion, Engineering standards, Flow (Dynamics), Hydraulic pumps, Preferences

Journal Articles

A Nonlinear Integral Sliding Surface to Improve the Transient Response of a Force-Controlled Pneumatic Actuator With Long Transmission Lines

Khurram Butt, Nariman Sepehri

J. Dyn. Sys., Meas., Control. December 2019, 141(12): 121012.

Paper No: DS-18-1564

DOI: https://doi.org/10.1115/1.4044720

Published Online: September 27, 2019

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Topics: Control equipment, Delays, Errors, Force control, Pneumatic actuators, Trajectories (Physics), Transients (Dynamics), Transmission lines, Uncertainty, Design

Journal Articles

Controller Design and Stability Analysis of Output Pressure Regulation in Electrohydrostatic Actuators

Masoumeh Esfandiari, Nariman Sepehri

J. Dyn. Sys., Meas., Control. April 2019, 141(4): 041008.

Paper No: DS-17-1476

DOI: https://doi.org/10.1115/1.4042028

Published Online: December 19, 2018

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Topics: Actuators, Control equipment, Design, Frequency response, Pressure, Stability, Quantum field theory, Uncertainty, Closed loop systems, Friction

Journal Articles

A Lyapunov Stable Controller for Bilateral Haptic Teleoperation of Single-Rod Hydraulic Actuators Subjected to Base Disturbance

Vikram Banthia, Ali Maddahi, Kourosh Zareinia, Subramaniam Balakrishnan, Nariman Sepehri

J. Dyn. Sys., Meas., Control. March 2019, 141(3): 031013.

Paper No: DS-18-1140

DOI: https://doi.org/10.1115/1.4041851

Published Online: November 22, 2018

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Topics: Actuators, Control equipment, Haptics, Manipulators, Stability, Simulation

Journal Articles

Four-Quadrant Analysis and System Design for Single-Rod Hydrostatic Actuators

Gustavo Koury Costa, Nariman Sepehri

J. Dyn. Sys., Meas., Control. February 2019, 141(2): 021011.

Paper No: DS-18-1087

DOI: https://doi.org/10.1115/1.4041382

Published Online: October 16, 2018

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Topics: Circuits, Cylinders, Flow (Dynamics), Stress, Valves, Actuators, Pressure, Pumps

Proceedings Papers

Stability Study of a Pump-Controlled Circuit for Single Rod Cylinders via the Concept of Lyapunov Exponents

Yuming Sun, Ahmed Imam, Christine Wu, Nariman Sepehri

Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A058, October 16–19, 2017

Paper No: FPMC2017-4314

DOI: https://doi.org/10.1115/FPMC2017-4314

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Topics: Circuits, Cylinders, Pumps, Stability, Actuators, Control equipment, Cracking (Materials), Design, Dynamics (Mechanics), Eigenvalues

Journal Articles

The Effects of Aging and Dual Tasking on Human Gait Complexity During Treadmill Walking: A Comparative Study Using Quantized Dynamical Entropy and Sample Entropy

Samira Ahmadi, Christine Wu, Nariman Sepehri, Anuprita Kantikar, Mayur Nankar, Tony Szturm

J Biomech Eng. January 2018, 140(1): 011006.

Paper No: BIO-16-1514

DOI: https://doi.org/10.1115/1.4037945

Published Online: October 31, 2017

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Topics: Entropy, Signals, Time series

Journal Articles

A Lyapunov Stable Controller for Bilateral Haptic Teleoperation of Single-Rod Hydraulic Actuators

Vikram Banthia, Kourosh Zareinia, Subramaniam Balakrishnan, Nariman Sepehri

J. Dyn. Sys., Meas., Control. November 2017, 139(11): 111001.

Paper No: DS-16-1438

DOI: https://doi.org/10.1115/1.4036535

Published Online: June 28, 2017

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Topics: Actuators, Control equipment, Haptics, Simulation, Stability, Stiffness, Manipulators, Hydraulic actuators, Feedback

Journal Articles

Fault-Tolerant Actuating Pressure Controller Design for an Electrohydrostatic Actuator Experiencing a Leaky Piston Seal

Guangan Ren, Jinchun Song, Nariman Sepehri

J. Dyn. Sys., Meas., Control. June 2017, 139(6): 061004.

Paper No: DS-16-1237

DOI: https://doi.org/10.1115/1.4035348

Published Online: March 22, 2017

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Topics: Actuators, Control equipment, Design, Leakage, Transfer functions, Pistons, Stress, Quantum field theory, Pressure, Pressure controllers

Proceedings Papers

Towards Oscillation Reduction in Forestry Cranes

Szabolcs Fodor, Carlos Vázquez, Leonid Freidovich, Nariman Sepehri

Proc. ASME. FPMC2016, BATH/ASME 2016 Symposium on Fluid Power and Motion Control, V001T01A049, September 7–9, 2016

Paper No: FPMC2016-1792

DOI: https://doi.org/10.1115/FPMC2016-1792

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Topics: Cranes, Oscillations, Actuators, Signals, Damage, Pressure measurement, Torque, Wear

Proceedings Papers

Design and Stability Analysis of a QFT Pressure Controller of a Hydraulic Actuator Using Takagi-Sugeno Fuzzy Model

Masoumeh Esfandiari, Nariman Sepehri

Proc. ASME. FPMC2015, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, V001T01A068, October 12–14, 2015

Paper No: FPMC2015-9636

DOI: https://doi.org/10.1115/FPMC2015-9636

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Topics: Actuators, Design, Pressure controllers, Quantum field theory, Stability, Control equipment, Closed loop systems, Uncertainty, Engineering design processes, Feedback

Journal Articles

A Hybrid Haptic Sensation for Teleoperation of Hydraulic Manipulators

Kourosh Zareinia, Nariman Sepehri

J. Dyn. Sys., Meas., Control. September 2015, 137(9): 091001.

Paper No: DS-14-1310

DOI: https://doi.org/10.1115/1.4030337

Published Online: September 1, 2015

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Topics: Actuators, Haptics, Manipulators, Stability, Stiffness, Control equipment, Pressure

Proceedings Papers

Hydraulic Actuator Internal Leakage Detection Using Cross-Correlation Time Series Analysis

Morgan May, Nariman Sepehri, Witold Kinsner

Proc. ASME. FPMC2014, ASME/BATH 2014 Symposium on Fluid Power and Motion Control, V001T01A003, September 10–12, 2014

Paper No: FPMC2014-7804

DOI: https://doi.org/10.1115/FPMC2014-7804

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Topics: Actuators, Leakage, Time series, Pistons, Flow (Dynamics), Cylinders, Fluids, Circuits, Errors, Pressure

Proceedings Papers

Comparison Between an Intelligent Controller and a Sliding Mode Controller to Positioning Pneumatic Actuators

Naghmeh Garmsiri, Nariman Sepehri

Proc. ASME. FPMC2014, ASME/BATH 2014 Symposium on Fluid Power and Motion Control, V001T01A004, September 10–12, 2014

Paper No: FPMC2014-7805

DOI: https://doi.org/10.1115/FPMC2014-7805

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Topics: Control equipment, Intelligent control systems, Pneumatic actuators, Sliding mode control, Stress, Brain, Flexible structures, Friction, Robustness, Stiction

Proceedings Papers

Stability Analysis of QFT Controllers Designed for Hydraulic Actuators Using Takagi-Sugeno Fuzzy Modeling Approach

Masoumeh Esfandiari, Nariman Sepehri

Proc. ASME. FPMC2013, ASME/BATH 2013 Symposium on Fluid Power and Motion Control, V001T01A031, October 6–9, 2013

Paper No: FPMC2013-4451

DOI: https://doi.org/10.1115/FPMC2013-4451

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Topics: Control equipment, Hydraulic actuators, Modeling, Quantum field theory, Stability, Takagi–Sugeno fuzzy models, Closed loop systems, Feedback, Fuzzy logic, Theorems (Mathematics)

Proceedings Papers

Wireless Control of a Teleoperated Hydraulic Manipulator With Application Towards Live-Line Maintenance

Yaser Maddahi, Nariman Sepehri, Stephen Liao, Wai-keung Fung, Ekram Hossain

Proc. ASME. FPMC2013, ASME/BATH 2013 Symposium on Fluid Power and Motion Control, V001T01A033, October 6–9, 2013

Paper No: FPMC2013-4454

DOI: https://doi.org/10.1115/FPMC2013-4454

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Topics: Maintenance, Manipulators, End effectors, Errors, Haptics

Proceedings Papers

Position Tracking of a Pneumatic Actuator Using Backstepping-Sliding Mode Control With Adaptive Friction Observer

Ramhuzaini Abd. Rahman, Nariman Sepehri

Proc. ASME. FPMC2013, ASME/BATH 2013 Symposium on Fluid Power and Motion Control, V001T01A028, October 6–9, 2013

Paper No: FPMC2013-4447

DOI: https://doi.org/10.1115/FPMC2013-4447

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Topics: Friction, Pneumatic actuators, Sliding mode control, Control equipment, Errors, Pneumatic cylinders, Servomechanisms, Stability, Steady state, Tracking control

Journal citation

NARROW

The Cavitation Issue in Asymmetrical Axial-Piston Pumps

Optimization-Driven Controller Design for a High-Performance Electro-Hydrostatic Asymmetric Actuator Operating in All Quadrants

A Practical Approach for Designing Fault-Tolerant Position Controllers in Hydraulic Actuators: Methodology and Experimental Validation

Measuring the Losses of Hydrostatic Pumps and Motors: A Critical Review of ISO4409:2007

A Nonlinear Integral Sliding Surface to Improve the Transient Response of a Force-Controlled Pneumatic Actuator With Long Transmission Lines

Controller Design and Stability Analysis of Output Pressure Regulation in Electrohydrostatic Actuators

A Lyapunov Stable Controller for Bilateral Haptic Teleoperation of Single-Rod Hydraulic Actuators Subjected to Base Disturbance

Four-Quadrant Analysis and System Design for Single-Rod Hydrostatic Actuators

Stability Study of a Pump-Controlled Circuit for Single Rod Cylinders via the Concept of Lyapunov Exponents

The Effects of Aging and Dual Tasking on Human Gait Complexity During Treadmill Walking: A Comparative Study Using Quantized Dynamical Entropy and Sample Entropy

A Lyapunov Stable Controller for Bilateral Haptic Teleoperation of Single-Rod Hydraulic Actuators

Fault-Tolerant Actuating Pressure Controller Design for an Electrohydrostatic Actuator Experiencing a Leaky Piston Seal

Towards Oscillation Reduction in Forestry Cranes

Design and Stability Analysis of a QFT Pressure Controller of a Hydraulic Actuator Using Takagi-Sugeno Fuzzy Model

A Hybrid Haptic Sensation for Teleoperation of Hydraulic Manipulators

Hydraulic Actuator Internal Leakage Detection Using Cross-Correlation Time Series Analysis

Comparison Between an Intelligent Controller and a Sliding Mode Controller to Positioning Pneumatic Actuators

Stability Analysis of QFT Controllers Designed for Hydraulic Actuators Using Takagi-Sugeno Fuzzy Modeling Approach

Wireless Control of a Teleoperated Hydraulic Manipulator With Application Towards Live-Line Maintenance

Position Tracking of a Pneumatic Actuator Using Backstepping-Sliding Mode Control With Adaptive Friction Observer

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