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Proceedings Papers

Investigating the Influence of Design Parameters on the Fluid-Structure Interaction in Fast Switching Valves

Henrik C. Pedersen, Torben O. Andersen, Niels C. Bender
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A060, October 19–21, 2021
Paper No: FPMC2021-70569
DOI: https://doi.org/10.1115/FPMC2021-70569
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Topics: Design, Fluid structure interaction, Valves, Fluids, Computational fluid dynamics, Flow (Dynamics), Optimization, Simulation, Annulus, Approximation
Proceedings Papers

Definition of Performance Requirements and Test Cases for Offshore/Subsea Winch Drive Systems With Digital Hydraulic Motors

Sondre Nordås, Morten K. Ebbesen, Torben O. Andersen
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A033, October 7–9, 2019
Paper No: FPMC2019-1670
DOI: https://doi.org/10.1115/FPMC2019-1670
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Topics: Hydraulic motors, Ocean engineering, Cranes, Displacement, Tension, Vessels, Design, Force control, Seas, Surface roughness
Proceedings Papers

A Multi-Agent Evolution Algorithm Used for Input Shaping of a Repetitive Non-Linear Dynamic System

Niels C. Bender, Henrik C. Pedersen, Michael M. Bech, Torben O. Andersen
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A036, September 12–14, 2018
Paper No: FPMC2018-8870
DOI: https://doi.org/10.1115/FPMC2018-8870
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Topics: Evolutionary algorithms, Nonlinear dynamical systems, Algorithms, Design, Chaos, Control algorithms, Decision making, Displacement, Nonlinear systems, Shapes
Proceedings Papers

Analysis of Requirements for Valve Accuracy and Repeatability in High Efficiency Digital Displacement Motors

Sondre Nordås, Morten K. Ebbesen, Torben O. Andersen
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A055, September 12–14, 2018
Paper No: FPMC2018-8908
DOI: https://doi.org/10.1115/FPMC2018-8908
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Topics: Displacement, Motors, Valves, Machinery, Flow (Dynamics), Pistons, Compressibility, Cylinders, Friction, High pressure (Physics)
Proceedings Papers

Analysis and Control of a Self-Contained Hydraulic Winch Drive

Lasse Schmidt, Henrik C. Pedersen, Viktor H. Donkov, Torben O. Andersen
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A044, September 12–14, 2018
Paper No: FPMC2018-8889
DOI: https://doi.org/10.1115/FPMC2018-8889
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Topics: Blades, Cranes, Design, Displacement, Drilling rigs, Dynamics (Mechanics), Engines, Flow (Dynamics), Flow control valves, Hydraulics
Proceedings Papers

Four Quadrant Hybrid Control Oriented Dynamical System Model of Digital Displacement ® Units

Niels H. Pedersen, Per Johansen, Torben O. Andersen
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A039, September 12–14, 2018
Paper No: FPMC2018-8874
DOI: https://doi.org/10.1115/FPMC2018-8874
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Topics: Displacement, Dynamic systems, Hybrid control, Pressure, Feedback, Machinery, Approximation, Discrete systems, Dynamics (Mechanics), Fluids
Proceedings Papers

Event-Driven Control of a Speed Varying Digital Displacement Machine

Niels H. Pedersen, Per Johansen, Torben O. Andersen
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A029, October 16–19, 2017
Paper No: FPMC2017-4260
DOI: https://doi.org/10.1115/FPMC2017-4260
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Topics: Displacement, Machinery, Control equipment, Control theory, Feedback, Design, Differential equations, Electric motors, Engines, Fluids
Proceedings Papers

A Robust Control Concept for Hydraulic Drives Based on Second Order Sliding Mode Disturbance Compensation

Lasse Schmidt, Torben O. Andersen, Per Johansen, Henrik C. Pedersen
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A033, October 16–19, 2017
Paper No: FPMC2017-4265
DOI: https://doi.org/10.1115/FPMC2017-4265
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Topics: Hydraulic drive systems, Robust control, Algorithms, Dynamics (Mechanics), Low-pass filters, Valves, Approximation, Design, Hardware, Robustness
Proceedings Papers

An Energy Efficient Hydraulic Winch Drive Concept Based on a Speed-Variable Switched Differential Pump

Lasse Schmidt, Torben O. Andersen, Henrik C. Pedersen, Anders H. Hansen
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A034, October 16–19, 2017
Paper No: FPMC2017-4266
DOI: https://doi.org/10.1115/FPMC2017-4266
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Topics: Pumps, Valves, Flow (Dynamics), Servo drives, Circuits, Cylinders, Design, Dynamics (Mechanics), Hydraulic motors, Hydrostatics
Proceedings Papers

An Arbitrary Order Adaptive Control Structure With Application to a Hydraulic Winch Drive

Lasse Schmidt, Torben O. Andersen, Henrik C. Pedersen, Michael M. Bech
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A035, October 16–19, 2017
Paper No: FPMC2017-4267
DOI: https://doi.org/10.1115/FPMC2017-4267
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Topics: Adaptive control, Algorithms, Control equipment, Design, Bulk modulus, Certainty, Dynamic models, Dynamics (Mechanics), Hydraulic drive systems, Leakage
Journal Articles

Discrete Linear Time Invariant Analysis of Digital Fluid Power Pump Flow Control

Per Johansen, Daniel B. Roemer, Torben O. Andersen, Henrik C. Pedersen
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. October 2017, 139(10): 101007.
Paper No: DS-16-1005
DOI: https://doi.org/10.1115/1.4036554
Published Online: June 28, 2017
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Topics: Displacement, Flow (Dynamics), Flow control, Fluids, Pumps, Valves, Approximation, Control equipment, Stress, Design
Proceedings Papers

State of the Art Review on Theoretical Tribology of Fluid Power Displacement Machines

Remzija Ćerimagić, Per Johansen, Torben O. Andersen, Henrik C. Pedersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A026, October 26–28, 2016
Paper No: FPNI2016-1539
DOI: https://doi.org/10.1115/FPNI2016-1539
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Topics: Displacement, Fluids, Machinery, Tribology, Wear, Design, Modeling, Optimization, Reliability, Engineers
Proceedings Papers

Analysis of the Thermo-Viscous Effect on Friction and Energy Dissipation in Oil Lubricated Interfaces

Per Johansen, Daniel B. Roemer, Torben O. Andersen, Henrik C. Pedersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A034, October 26–28, 2016
Paper No: FPNI2016-1554
DOI: https://doi.org/10.1115/FPNI2016-1554
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Topics: Energy dissipation, Friction, Fluids, Tribology, Computer simulation, Lubrication, Approximation, Design, Film thickness, Lubricants
Proceedings Papers

An Analytic Approach to Cascade Control Design for Hydraulic Valve-Cylinder Drives

Lasse Schmidt, Anders H. Hansen, Torben O. Andersen, Henrik C. Pedersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A015, October 26–28, 2016
Paper No: FPNI2016-1521
DOI: https://doi.org/10.1115/FPNI2016-1521
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Topics: Cascades (Fluid dynamics), Cylinders, Design, Valves, Hydraulic drive systems, Feedback, Pistons, Pressure, Flow (Dynamics), Motion control
Proceedings Papers

Influence of the Lubricant Thermo-Piezo-Viscous Property on Hydrostatic Bearings in Oil Hydraulics

Per Johansen, Daniel B. Roemer, Torben O. Andersen, Henrik C. Pedersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A031, October 26–28, 2016
Paper No: FPNI2016-1551
DOI: https://doi.org/10.1115/FPNI2016-1551
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Topics: Bearings, Hydraulics, Hydrostatics, Lubricants, Hydrostatic pressure, Approximation, Design, Machinery, Viscosity, Engineers
Proceedings Papers

A Generic Model Based Tracking Controller for Hydraulic Valve-Cylinder Drives

Anders Hedegaard Hansen, Lasse Schmidt, Henrik C. Pedersen, Torben O. Andersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A016, October 26–28, 2016
Paper No: FPNI2016-1522
DOI: https://doi.org/10.1115/FPNI2016-1522
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Topics: Control equipment, Cylinders, Valves, Design, Errors, Feedforward control, Pistons, Pole placement, Pressure, Reliability
Proceedings Papers

LQR Feedback Control Development for Wind Turbines Featuring a Digital Fluid Power Transmission System

Niels H. Pedersen, Per Johansen, Torben O. Andersen
Proc. ASME. FPNI2016, 9th FPNI Ph.D. Symposium on Fluid Power, V001T01A024, October 26–28, 2016
Paper No: FPNI2016-1537
DOI: https://doi.org/10.1115/FPNI2016-1537
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Topics: Feedback, Fluids, Wind turbines, Design, Displacement, Engines, Motors, Control equipment, Dynamic models, Machinery
Proceedings Papers

Guidelines for Properly Adjusting Pressure Feedback in Systems With Over-Centre Valves

Henrik C. Pedersen, Torben O. Andersen, Michael R. Hansen
Proc. ASME. FPMC2016, BATH/ASME 2016 Symposium on Fluid Power and Motion Control, V001T01A041, September 7–9, 2016
Paper No: FPMC2016-1780
DOI: https://doi.org/10.1115/FPMC2016-1780
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Topics: Feedback, Pressure, Valves, Filters, Damping, Active damping, Cylinders, Dynamic response, Dynamics (Mechanics), Flow control valves
Proceedings Papers

Dynamic Analysis and Characterization of Conventional Hydraulic Power Supply Units

Lasse Schmidt, Michael Liedhegener, Michael M. Bech, Torben O. Andersen
Proc. ASME. FPMC2016, BATH/ASME 2016 Symposium on Fluid Power and Motion Control, V001T01A026, September 7–9, 2016
Paper No: FPMC2016-1756
DOI: https://doi.org/10.1115/FPMC2016-1756
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Topics: Accounting, Dynamic analysis, Dynamics (Mechanics), Electromagnetic induction, Excitation, Flow (Dynamics), Hydraulic drive systems, Motors, Pistons, Pressure
Proceedings Papers

Modeling of Dynamic Fluid Forces in Fast Switching Valves

Daniel B. Roemer, Per Johansen, Henrik C. Pedersen, Torben O. Andersen
Proc. ASME. FPMC2015, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, V001T01A049, October 12–14, 2015
Paper No: FPMC2015-9594
DOI: https://doi.org/10.1115/FPMC2015-9594
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Topics: Fluids, Modeling, Valves, Computational fluid dynamics, Design, Engineering simulation, Optimization, Simulation, Die cutting, Dynamic models