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Proceedings Papers

Determination of Load Collective for Sizing of a Hydraulic Drive Network System Considering Simultaneity Between Actuator Loads

Mikkel van Binsbergen-Galán, Lasse Schmidt
Proc. ASME. FPMC2023, ASME/BATH 2023 Symposium on Fluid Power and Motion Control, V001T01A004, October 16–18, 2023
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2023-109823
https://doi.org/10.1115/FPMC2023-109823
View Paper titled, Determination of Load Collective for Sizing of a Hydraulic Drive Network System Considering Simultaneity Between Actuator Loads
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Topics: Actuators, Design, Hydraulic drive systems, Stress, Machinery, Cranes, Cycles, Dynamics (Mechanics), Fluid power systems, Topology
Proceedings Papers

Practical Implementation of Secondary Control Principles in an Electro-Hydraulic Speed-Variable Drive Applied to an Injection Moulding Machine

Rasmus Aagaard Hertz, Ole Therkelsen, Søren Kristiansen, Jesper Kjærsgaard Christensen, Christian-Emil Helver, Lasse Schmidt
Proc. ASME. FPMC2023, ASME/BATH 2023 Symposium on Fluid Power and Motion Control, V001T01A056, October 16–18, 2023
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2023-111868
https://doi.org/10.1115/FPMC2023-111868
View Paper titled, Practical Implementation of Secondary Control Principles in an Electro-Hydraulic Speed-Variable Drive Applied to an Injection Moulding Machine
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Topics: Injection molding machines, Pumps, Pressure, Control equipment, Pistons, Retrofitting, Cylinders, Hardware, Machinery, Noise (Sound)
Proceedings Papers

Control of Hydraulic Injection Moulding Machine With Electro-Hydraulic Variable-Speed Drive

Rasmus A. Hertz, Ole Therkelsen, Søren Kristiansen, Jesper K. Christensen, Frederik A. Hansson, Lasse Schmidt
Proc. ASME. FPMC2023, ASME/BATH 2023 Symposium on Fluid Power and Motion Control, V001T01A026, October 16–18, 2023
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2023-111497
https://doi.org/10.1115/FPMC2023-111497
View Paper titled, Control of Hydraulic Injection Moulding Machine With Electro-Hydraulic Variable-Speed Drive
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Topics: Injection molding machines, Pressure control, Variable speed drives
Proceedings Papers

State Decoupling & Stability Considerations in Electro-Hydraulic Variable-Speed Drive Networks

Lasse Schmidt, Søren Ketelsen, Kenneth Vorbøl Hansen
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A028, September 14–16, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2022-89548
https://doi.org/10.1115/FPMC2022-89548
View Paper titled, State Decoupling & Stability Considerations in Electro-Hydraulic Variable-Speed Drive Networks
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Topics: Stability, Variable speed drives, Cylinders, Pressure, Pistons, Analytical methods, Dimensions, Pipes, Reservoirs, Stress
Proceedings Papers

Prognostics in Custom-Build Electro-Hydraulic Variable-Speed Drive Applications

Terkil Bak-Jensen, Lasse Schmidt
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A018, September 14–16, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2022-89083
https://doi.org/10.1115/FPMC2022-89083
View Paper titled, Prognostics in Custom-Build Electro-Hydraulic Variable-Speed Drive Applications
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Topics: Condition monitoring, Maintenance, Variable speed drives, Design, Algorithms, Modeling, Reliability, Service life (Equipment)
Proceedings Papers

Perspectives on Component Downsizing in Electro-Hydraulic Variable-Speed Drive Networks

Lasse Schmidt, Søren Ketelsen, Kenneth Vorbøl Hansen
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A027, September 14–16, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2022-89547
https://doi.org/10.1115/FPMC2022-89547
View Paper titled, Perspectives on Component Downsizing in Electro-Hydraulic Variable-Speed Drive Networks
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Topics: Variable speed drives, Cylinders, Valves, Actuators, Circuits, Cranes, Cycles, Dimensions, Stress
Proceedings Papers

Noise Attenuation in a Secondary Controlled Electro-Hydraulic Actuator Using an Extended Kalman Filter

Niklas Simonsen, Emil Munk Sørensen, Mikkel van Binsbergen-Galán, Stine Flindt Hornemann Kleine, Mikkel Hvid Nielsen, Lasse Schmidt
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A018, October 19–21, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2021-68658
https://doi.org/10.1115/FPMC2021-68658
View Paper titled, Noise Attenuation in a Secondary Controlled Electro-Hydraulic Actuator Using an Extended Kalman Filter
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Topics: Actuators, Kalman filters, Noise (Sound), Dynamics (Mechanics), Engines, Flow (Dynamics), Machinery, Motors, Pumps, Cylinders
Proceedings Papers

Analogy Between Hydraulic Transformers and Variable-Speed Pumps

Lasse Schmidt, Søren Ketelsen, Robin Mommers, Peter Achten
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A007, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2719
https://doi.org/10.1115/FPMC2020-2719
View Paper titled, Analogy Between Hydraulic Transformers and Variable-Speed Pumps
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Topics: Pumps, Dynamics (Mechanics), Actuators, Pressure, Stress, Capacitors, Cylinders, Energy dissipation, Energy recovery, Energy storage
Proceedings Papers

Tribotronics in Electro-Hydraulic Actuator Technology: Improving Durability by Control

Nikolaj Grønkær, Per Johansen, Kenneth Vorbøl Hansen, Lasse Schmidt
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A008, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2721
https://doi.org/10.1115/FPMC2020-2721
View Paper titled, Tribotronics in Electro-Hydraulic Actuator Technology: Improving Durability by Control
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Topics: Actuators, Bearings, Design, Durability, Energy efficiency, Failure, Hydraulic cylinders, Journal bearings, Lubrication, Pumps
Proceedings Papers

On Secondary Control Principles in Pump Controlled Electro-Hydraulic Linear Actuators

Lasse Schmidt, Søren Ketelsen, Nikolaj Grønkær, Kenneth Vorbøl Hansen
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A009, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2722
https://doi.org/10.1115/FPMC2020-2722
View Paper titled, On Secondary Control Principles in Pump Controlled Electro-Hydraulic Linear Actuators
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Topics: Actuators, Pumps, Flow (Dynamics), Force control, Pressure, Electric motors, Flow control, Force measurement, Motion control, State feedback
Proceedings Papers

Downsizing the Electric Motors of Energy-Efficient Self-Contained Electro-Hydraulic Systems by Using Hybrid Technologies

Damiano Padovani, Søren Ketelsen, Lasse Schmidt
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A005, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2717
https://doi.org/10.1115/FPMC2020-2717
View Paper titled, Downsizing the Electric Motors of Energy-Efficient Self-Contained Electro-Hydraulic Systems by Using Hybrid Technologies
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Topics: Actuators, Displacement, Electric motors, Cranes, Design, Dynamic models, Energy efficiency, Energy storage, Hydraulic cranes, Hydraulic drive systems
Proceedings Papers

The Challenge of Feedback in Fluid Power Tribotronic Control Systems

Per Johansen, Nikolaj Grønkær, Andreas Langbak, Simon Krempin, Lasse Schmidt
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A025, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2756
https://doi.org/10.1115/FPMC2020-2756
View Paper titled, The Challenge of Feedback in Fluid Power Tribotronic Control Systems
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Topics: Control systems, Feedback, Fluids, Tribology, Journal bearings, Feedforward control, Fluid films, Modeling analysis, Reliability, Risk
Proceedings Papers

A Gasless Reservoir Solution for Electro-Hydraulic Compact Drives With Two Prime Movers

Søren Ketelsen, Damiano Padovani, Morten Kjeld Ebbesen, Torben Ole Andersen, Lasse Schmidt
Proc. ASME. FPMC2020, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, V001T01A038, September 9–11, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2020-2773
https://doi.org/10.1115/FPMC2020-2773
View Paper titled, A Gasless Reservoir Solution for Electro-Hydraulic Compact Drives With Two Prime Movers
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Topics: Reservoirs, Pressure, Cylinders, Secondary cells, Leakage, Pumps, Actuators, Circuits, Contamination, Couplings
Proceedings Papers

Improving the Efficiency and Dynamic Properties of a Flow Control Unit in a Self-Locking Compact Electro-Hydraulic Cylinder Drive

Lasse Schmidt, Søren Ketelsen, Damiano Padovani, Kasper Aa. Mortensen
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A034, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1671
https://doi.org/10.1115/FPMC2019-1671
View Paper titled, Improving the Efficiency and Dynamic Properties of a Flow Control Unit in a Self-Locking Compact Electro-Hydraulic Cylinder Drive
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Topics: Cylinders, Flow control, Energy consumption, Flow (Dynamics), Delays, Design, Stress, Electric motors, Pistons, Pressure
Proceedings Papers

Mass Estimation of Self-Contained Linear Electro-Hydraulic Actuators and Evaluation of the Influence on Payload Capacity of a Knuckle Boom Crane

Søren Ketelsen, Torben Ole Andersen, Morten Kjeld Ebbesen, Lasse Schmidt
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A045, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1689
https://doi.org/10.1115/FPMC2019-1689
View Paper titled, Mass Estimation of Self-Contained Linear Electro-Hydraulic Actuators and Evaluation of the Influence on Payload Capacity of a Knuckle Boom Crane
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Topics: Actuators, Cranes, Hydraulic cylinders, Hydraulic circuits, Valves, Architecture, Cylinders, Hydraulic drive systems, Hydraulic pumps, Hydraulics
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
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2018-8889
https://doi.org/10.1115/FPMC2018-8889
View Paper titled, Analysis and Control of a Self-Contained Hydraulic Winch Drive
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Topics: Blades, Cranes, Design, Displacement, Drilling rigs, Dynamics (Mechanics), Engines, Flow (Dynamics), Flow control valves, Hydraulics
Proceedings Papers

Investigation of Squeeze Film Damping and Associated Loads

Per Johansen, Niels C. Bender, Anders H. Hansen, Lasse Schmidt
Proc. ASME. FPMC2017, ASME/BATH 2017 Symposium on Fluid Power and Motion Control, V001T01A050, October 16–19, 2017
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2017-4300
https://doi.org/10.1115/FPMC2017-4300
View Paper titled, Investigation of Squeeze Film Damping and Associated Loads
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Topics: Damping, Stress, Valves, Equations of motion, Hydraulics, Viscosity, Design, Fluids, Lubrication theory, Pressure
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
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2017-4265
https://doi.org/10.1115/FPMC2017-4265
View Paper titled, A Robust Control Concept for Hydraulic Drives Based on Second Order Sliding Mode Disturbance Compensation
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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
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2017-4266
https://doi.org/10.1115/FPMC2017-4266
View Paper titled, An Energy Efficient Hydraulic Winch Drive Concept Based on a Speed-Variable Switched Differential Pump
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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
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2017-4267
https://doi.org/10.1115/FPMC2017-4267
View Paper titled, An Arbitrary Order Adaptive Control Structure With Application to a Hydraulic Winch Drive
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Topics: Adaptive control, Algorithms, Control equipment, Design, Bulk modulus, Certainty, Dynamic models, Dynamics (Mechanics), Hydraulic drive systems, Leakage