Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies

Digital displacement technology has the potential of revolutionizing the performance of hydraulic piston pumps and motors. Instead of connecting each cylinder chamber to high and low pressure in conjunction with the shaft position, two electrically-controlled on/off valves are connected to each cham...

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Main Authors: Sondre Nordås, Michael M. Beck, Morten K. Ebbesen, Torben O. Andersen
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/9/1737
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author Sondre Nordås
Michael M. Beck
Morten K. Ebbesen
Torben O. Andersen
author_facet Sondre Nordås
Michael M. Beck
Morten K. Ebbesen
Torben O. Andersen
author_sort Sondre Nordås
collection DOAJ
description Digital displacement technology has the potential of revolutionizing the performance of hydraulic piston pumps and motors. Instead of connecting each cylinder chamber to high and low pressure in conjunction with the shaft position, two electrically-controlled on/off valves are connected to each chamber. This allows for individual cylinder chamber control. Variable displacement can be achieved by using different displacement strategies, like for example the full stroke, partial stroke, or sequential partial stroke displacement strategy. Each displacement strategy has its transient and steady-state characteristics. This paper provides a detailed simulation analysis of the transient and steady-state response of a digital displacement motor running with various displacement strategies. The non-linear digital displacement motor model is verified by experimental work on a radial piston motor.
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spelling doaj.art-a321f76ef28a48b8b1f5cd03cd843b522022-12-22T04:00:22ZengMDPI AGEnergies1996-10732019-05-01129173710.3390/en12091737en12091737Dynamic Response of a Digital Displacement Motor Operating with Various Displacement StrategiesSondre Nordås0Michael M. Beck1Morten K. Ebbesen2Torben O. Andersen3Department of Engineering and Science, University of Agder, 4879 Grimstad, NorwayDepartment of Energy Technology, Aalborg University, 9220 Aalborg East, DenmarkDepartment of Engineering and Science, University of Agder, 4879 Grimstad, NorwayDepartment of Energy Technology, Aalborg University, 9220 Aalborg East, DenmarkDigital displacement technology has the potential of revolutionizing the performance of hydraulic piston pumps and motors. Instead of connecting each cylinder chamber to high and low pressure in conjunction with the shaft position, two electrically-controlled on/off valves are connected to each chamber. This allows for individual cylinder chamber control. Variable displacement can be achieved by using different displacement strategies, like for example the full stroke, partial stroke, or sequential partial stroke displacement strategy. Each displacement strategy has its transient and steady-state characteristics. This paper provides a detailed simulation analysis of the transient and steady-state response of a digital displacement motor running with various displacement strategies. The non-linear digital displacement motor model is verified by experimental work on a radial piston motor.https://www.mdpi.com/1996-1073/12/9/1737digital displacement motordisplacement strategiestransient responsesteady-state responsemodelingexperimental validation
spellingShingle Sondre Nordås
Michael M. Beck
Morten K. Ebbesen
Torben O. Andersen
Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
Energies
digital displacement motor
displacement strategies
transient response
steady-state response
modeling
experimental validation
title Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
title_full Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
title_fullStr Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
title_full_unstemmed Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
title_short Dynamic Response of a Digital Displacement Motor Operating with Various Displacement Strategies
title_sort dynamic response of a digital displacement motor operating with various displacement strategies
topic digital displacement motor
displacement strategies
transient response
steady-state response
modeling
experimental validation
url https://www.mdpi.com/1996-1073/12/9/1737
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