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Proceedings Papers

Challenges in Elastohydrodynamic Simulations of Radial Ball Piston Pumps

Simon Leonhartsberger, Bernhard Manhartsgruber
Proc. ASME. FPMC2024, BATH/ASME 2024 Symposium on Fluid Power and Motion Control, V001T01A022, September 11–13, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2024-140368
https://doi.org/10.1115/FPMC2024-140368
View Paper titled, Challenges in Elastohydrodynamic Simulations of Radial Ball Piston Pumps
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Topics: Pistons, Pumps, Simulation
Proceedings Papers

Transmission Line Models for Fluid Power Hoses Identified From Measurement Data

Bernhard Manhartsgruber
Proc. ASME. FPMC2024, BATH/ASME 2024 Symposium on Fluid Power and Motion Control, V001T01A026, September 11–13, 2024
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2024-140415
https://doi.org/10.1115/FPMC2024-140415
View Paper titled, Transmission Line Models for Fluid Power Hoses Identified From Measurement Data
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Topics: Fluids, Transmission lines, Simulation, Modeling, Pressure, Approximation, Construction, Differential equations, Dynamics (Mechanics), Energy engineering
Proceedings Papers

Hydraulic Drive Trains in Wind Turbines for Rapidly Changing Strong Winds

Bernhard Manhartsgruber
Proc. ASME. FPMC2023, ASME/BATH 2023 Symposium on Fluid Power and Motion Control, V001T01A064, October 16–18, 2023
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2023-111919
https://doi.org/10.1115/FPMC2023-111919
View Paper titled, Hydraulic Drive Trains in Wind Turbines for Rapidly Changing Strong Winds
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Topics: Hydraulic drive systems, Trains, Wind turbines, Generators, Rotors, Secondary cells, Wind, Wind energy, Wind velocity, Blades
Proceedings Papers

A Set of Benchmark Problems for Fluid Power System Simulation

Bernhard Manhartsgruber
Proc. ASME. FPMC2022, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, V001T01A044, September 14–16, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2022-90185
https://doi.org/10.1115/FPMC2022-90185
View Paper titled, A Set of Benchmark Problems for Fluid Power System Simulation
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Topics: Fluids, Power system simulation, Modeling, Computer software, Differential equations, Simulation, Dry friction, Energy industry, Flow (Dynamics), Hydraulic cylinders
Proceedings Papers

Model Updating of a Hydraulic Chain Oscillator

Paul Treml, Gudrun Mikota, Bernhard Manhartsgruber
Proc. ASME. FPMC2021, ASME/BATH 2021 Symposium on Fluid Power and Motion Control, V001T01A023, October 19–21, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2021-68690
https://doi.org/10.1115/FPMC2021-68690
View Paper titled, Model Updating of a Hydraulic Chain Oscillator
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Topics: Chain, Flow (Dynamics), Frequency response, Hydraulic circuits, Hydraulic drive systems, Optimization
Proceedings Papers

Cavitation Driven Impact in a Hydraulic Piston Pump: A Theoretical and Experimental Investigation

Bernhard Manhartsgruber, R. Scheidl
Proc. ASME. DETC97, Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, V01DT19A001, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-3921
https://doi.org/10.1115/DETC97/VIB-3921
View Paper titled, Cavitation Driven Impact in a Hydraulic Piston Pump: A Theoretical and Experimental Investigation
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Topics: Cavitation, Pistons, Pumps, Cylinders, Attractors, Countermeasures, Ducts, Dynamic systems, Pipes, Rolling mills
Proceedings Papers

Singular Perturbation Analysis of an Electrohydraulic Servo-Drive With Discontinuous Reduced Dynamics

Bernhard Manhartsgruber
Proc. ASME. DETC99, Volume 7B: 17th Biennial Conference on Mechanical Vibration and Noise, 2001-2011, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8178
https://doi.org/10.1115/DETC99/VIB-8178
View Paper titled, Singular Perturbation Analysis of an Electrohydraulic Servo-Drive With Discontinuous Reduced Dynamics
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Topics: Dynamics (Mechanics), Servo drives, Feedback, Design, Composite materials, Damping, Oscillations, Position control, Pressure, State feedback
Proceedings Papers

Computationally Efficient Time-Domain Modeling of Fluid Transmission Lines

Bernhard Manhartsgruber
Proc. ASME. IDETC-CIE2001, Volume 6A: 18th Biennial Conference on Mechanical Vibration and Noise, 891-900, September 9–12, 2001
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/VIB-21406
https://doi.org/10.1115/DETC2001/VIB-21406
View Paper titled, Computationally Efficient Time-Domain Modeling of Fluid Transmission Lines
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Topics: Computation, Computers, Fluids, Friction, Linear systems, Modeling, Pipe flow, Transmission lines
Proceedings Papers

Prediction of Particle Resuspension and Particle Accumulation in Hydraulic Reservoirs Using Three-Phase CFD Simulations

Lukas Muttenthaler, Bernhard Manhartsgruber
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A008, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1617
https://doi.org/10.1115/FPMC2019-1617
View Paper titled, Prediction of Particle Resuspension and Particle Accumulation in Hydraulic Reservoirs Using Three-Phase CFD Simulations
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Topics: Computational fluid dynamics, Engineering simulation, Particulate matter, Reservoirs, Simulation, Separation (Technology), Water, Aluminum, Bubbles, Contamination
Proceedings Papers

Optimization of a Snap Through Spring for a Hydraulic Valve With Hysteresis Response Behavior

Matthias Scherrer, Rudolf Scheidl, Bernhard Manhartsgruber
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A038, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1680
https://doi.org/10.1115/FPMC2019-1680
View Paper titled, Optimization of a Snap Through Spring for a Hydraulic Valve With Hysteresis Response Behavior
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Topics: Optimization, Springs, Valves, Design, Buckling, Displacement, Cantilever beams, Fatigue, Finite element model, Genetic algorithms
Proceedings Papers

H 2 -Optimal Low Order Transmission Line Models

Bernhard Manhartsgruber
Proc. ASME. FPMC2019, ASME/BATH 2019 Symposium on Fluid Power and Motion Control, V001T01A044, October 7–9, 2019
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2019-1688
https://doi.org/10.1115/FPMC2019-1688
View Paper titled, H 2 -Optimal Low Order Transmission Line Models
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Topics: Transmission lines, Computation, Optimization, Algebra, Approximation, Computers, Design, Fluid dynamics, Fluid structure interaction, FORTRAN
Journal Articles

Hydraulic Modal Analysis in Theory and Practice

Gudrun Mikota, Bernhard Manhartsgruber, Franz Hammerle, Andreas Brandl
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. May 2019, 141(5): 051007.
Paper No: DS-18-1315
https://doi.org/10.1115/1.4042145
Published Online: January 18, 2019
View Articletitled, Hydraulic Modal Analysis in Theory and Practice
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Topics: Excitation, Frequency response, Mode shapes, Pressure, Hammers, Modal assurance criterion, Modal analysis, Sensors, Flow (Dynamics), Testing
Proceedings Papers

A Novel Concept for Boosting the Suction Line of Piston Pumps by Piezo-Actuated Pipe Walls

Bernhard Manhartsgruber
Proc. ASME. FPMC2018, BATH/ASME 2018 Symposium on Fluid Power and Motion Control, V001T01A066, September 12–14, 2018
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2018-8936
https://doi.org/10.1115/FPMC2018-8936
View Paper titled, A Novel Concept for Boosting the Suction Line of Piston Pumps by Piezo-Actuated Pipe Walls
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Topics: Pipes, Pistons, Pumps, Suction, Pressure, Simulation, Cavitation, Electronics, Oscillations, Actuators
Proceedings Papers

The Dynamics of Leakage in Bent Axis Units Without Timing Gear

Bernhard Manhartsgruber
Proc. ASME. FPMC2016, BATH/ASME 2016 Symposium on Fluid Power and Motion Control, V001T01A042, September 7–9, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2016-1781
https://doi.org/10.1115/FPMC2016-1781
View Paper titled, The Dynamics of Leakage in Bent Axis Units Without Timing Gear
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Topics: Dynamics (Mechanics), Gears, Leakage, Cylinders, Pistons, Flow (Dynamics), Hydraulic pumps, Kinematics, Machinery, Motors
Proceedings Papers

Repetitive Excitation Control for Precise Measurement of Wave Propagation in Fluid Power Systems

Bernhard Manhartsgruber
Proc. ASME. FPMC2015, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, V001T01A052, October 12–14, 2015
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2015-9599
https://doi.org/10.1115/FPMC2015-9599
View Paper titled, Repetitive Excitation Control for Precise Measurement of Wave Propagation in Fluid Power Systems
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Topics: Excitation, Fluid power systems, Wave propagation, Fluids, Transmission lines, Pressure, Servomechanisms, Valves, Boundary-value problems, Computers
Proceedings Papers

Dynamics of Transmission Line Junctions: Comparison of CFD Results Against Measurements

Clemens Fries, Bernhard Manhartsgruber
Proc. ASME. FPNI2014, 8th FPNI Ph.D Symposium on Fluid Power, V001T02A003, June 11–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FPNI2014-7812
https://doi.org/10.1115/FPNI2014-7812
View Paper titled, Dynamics of Transmission Line Junctions: Comparison of CFD Results Against Measurements
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Topics: Computational fluid dynamics, Dynamics (Mechanics), Junctions, Transmission lines, Flow (Dynamics), Fluid power systems, Fluids, Friction, Modeling, Simulation results
Proceedings Papers

Towards Direct Numerical Simulation of Compressible Orifice Flow

Bernhard Manhartsgruber
Proc. ASME. FPMC2013, ASME/BATH 2013 Symposium on Fluid Power and Motion Control, V001T01A057, October 6–9, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2013-4499
https://doi.org/10.1115/FPMC2013-4499
View Paper titled, Towards Direct Numerical Simulation of Compressible Orifice Flow
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Topics: Computer simulation, Flow (Dynamics), Simulation, Fluids, Transients (Dynamics), Turbulence, Computational fluid dynamics, Design, Hydraulic drive systems, Incompressible fluids
Proceedings Papers

Experimental Results on Air Release and Absorption in Hydraulic Oil

Bernhard Manhartsgruber
Proc. ASME. FEDSM2013, Volume 2, Fora: Cavitation and Multiphase Flow; Fluid Measurements and Instrumentation; Microfluidics; Multiphase Flows: Work in Progress, V002T22A003, July 7–11, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2013-16602
https://doi.org/10.1115/FEDSM2013-16602
View Paper titled, Experimental Results on Air Release and Absorption in Hydraulic Oil
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Topics: Absorption, Compression, Construction, Cycles, Dynamic models, Fluids, Fuels, High pressure (Physics), Hydraulic drive systems, Mineral oil
Proceedings Papers

CFD Based Modeling of Wave Propagation in Liquid Transmission Line Junctions

Clemens Fries, Bernhard Manhartsgruber
Proc. ASME. FEDSM2013, Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT03A025, July 7–11, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2013-16592
https://doi.org/10.1115/FEDSM2013-16592
View Paper titled, CFD Based Modeling of Wave Propagation in Liquid Transmission Line Junctions
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Topics: Computational fluid dynamics, Junctions, Modeling, Transmission lines, Wave propagation, Fluids, Dynamic models, Excitation, Friction, Fuels
Journal Articles

A Novel Approach for the Prediction of Dynamic Features of Air Release and Absorption in Hydraulic Oils

Junjie Zhou, Andrea Vacca, Bernhard Manhartsgruber
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2013, 135(9): 091305.
Paper No: FE-12-1583
https://doi.org/10.1115/1.4024864
Published Online: July 11, 2013
View Articletitled, A Novel Approach for the Prediction of Dynamic Features of Air Release and Absorption in Hydraulic Oils
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Topics: Absorption, Bulk modulus, Cavitation, Cycles, Density, Fluid density, Fluids, Pressure, Vapors, Model validation