Digital hydraulic multi-pressure actuator – the concept, simulation study and first experimental results
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Digital hydraulic multi-pressure actuator – the concept, simulation study and first experimental results. / Huova, Mikko; Aalto, Arttu; Linjama, Matti; Huhtala, Kalevi; Lantela, Tapio; Pietola, Matti.
In: International Journal of Fluid Power, Vol. 18, No. 3, 2017, p. 141-152.Research output: Contribution to journal › Article › Scientific › peer-review
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TY - JOUR
T1 - Digital hydraulic multi-pressure actuator – the concept, simulation study and first experimental results
AU - Huova, Mikko
AU - Aalto, Arttu
AU - Linjama, Matti
AU - Huhtala, Kalevi
AU - Lantela, Tapio
AU - Pietola, Matti
N1 - INT=aut,"Aalto, Arttu"
PY - 2017
Y1 - 2017
N2 - The decentralisation of hydraulic systems is a recent trend in industrial hydraulics. Speed variable drive is one concept where an actuator is driven by an integrated pump, thus removing the need for control valves or complex centralised variable displacement hydraulic units and long pipelines. The motivation for the development is the need to improve the energy efficiency and flexibility of drives. A similar solution to mobile hydraulics is not currently available. This paper studies a digital hydraulic approach, which includes a local hydraulic energy storage located together with the actuator, the means to convert efficiently energy from the storage to mechanical work and a small start-/stop-type pump unit sized according to mean power. The simulation results and first experimental results show that the approach has remarkable energy saving potential compared to traditional valve controlled systems, but further research is needed to improve the controllability.
AB - The decentralisation of hydraulic systems is a recent trend in industrial hydraulics. Speed variable drive is one concept where an actuator is driven by an integrated pump, thus removing the need for control valves or complex centralised variable displacement hydraulic units and long pipelines. The motivation for the development is the need to improve the energy efficiency and flexibility of drives. A similar solution to mobile hydraulics is not currently available. This paper studies a digital hydraulic approach, which includes a local hydraulic energy storage located together with the actuator, the means to convert efficiently energy from the storage to mechanical work and a small start-/stop-type pump unit sized according to mean power. The simulation results and first experimental results show that the approach has remarkable energy saving potential compared to traditional valve controlled systems, but further research is needed to improve the controllability.
KW - Digital hydraulics
KW - hybrid actuator
KW - integrated actuator
U2 - 10.1080/14399776.2017.1302775
DO - 10.1080/14399776.2017.1302775
M3 - Article
VL - 18
SP - 141
EP - 152
JO - International Journal of Fluid Power
JF - International Journal of Fluid Power
SN - 1439-9776
IS - 3
ER -