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https://doi.org/10.17559/TV-20141128090939

CFD simulation of flow force reduction in hydraulic valves

Niko Herakovič   ORCID icon orcid.org/0000-0002-2939-2891 ; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
Jožef Duhovnik ; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
Marko Šimic ; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia

Puni tekst: engleski, pdf (3 MB) str. 453-463 preuzimanja: 281* citiraj
APA 6th Edition
Herakovič, N., Duhovnik, J. i Šimic, M. (2015). CFD simulation of flow force reduction in hydraulic valves. Tehnički vjesnik, 22 (2), 453-463. https://doi.org/10.17559/TV-20141128090939
MLA 8th Edition
Herakovič, Niko, et al. "CFD simulation of flow force reduction in hydraulic valves." Tehnički vjesnik, vol. 22, br. 2, 2015, str. 453-463. https://doi.org/10.17559/TV-20141128090939. Citirano 18.06.2019.
Chicago 17th Edition
Herakovič, Niko, Jožef Duhovnik i Marko Šimic. "CFD simulation of flow force reduction in hydraulic valves." Tehnički vjesnik 22, br. 2 (2015): 453-463. https://doi.org/10.17559/TV-20141128090939
Harvard
Herakovič, N., Duhovnik, J., i Šimic, M. (2015). 'CFD simulation of flow force reduction in hydraulic valves', Tehnički vjesnik, 22(2), str. 453-463. doi: https://doi.org/10.17559/TV-20141128090939
Vancouver
Herakovič N, Duhovnik J, Šimic M. CFD simulation of flow force reduction in hydraulic valves. Tehnički vjesnik [Internet]. 2015 [pristupljeno 18.06.2019.];22(2):453-463. doi: https://doi.org/10.17559/TV-20141128090939
IEEE
N. Herakovič, J. Duhovnik i M. Šimic, "CFD simulation of flow force reduction in hydraulic valves", Tehnički vjesnik, vol.22, br. 2, str. 453-463, 2015. [Online]. doi: https://doi.org/10.17559/TV-20141128090939
Puni tekst: hrvatski, pdf (3 MB) str. 453-463 preuzimanja: 974* citiraj
APA 6th Edition
Herakovič, N., Duhovnik, J. i Šimic, M. (2015). CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu. Tehnički vjesnik, 22 (2), 453-463. https://doi.org/10.17559/TV-20141128090939
MLA 8th Edition
Herakovič, Niko, et al. "CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu." Tehnički vjesnik, vol. 22, br. 2, 2015, str. 453-463. https://doi.org/10.17559/TV-20141128090939. Citirano 18.06.2019.
Chicago 17th Edition
Herakovič, Niko, Jožef Duhovnik i Marko Šimic. "CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu." Tehnički vjesnik 22, br. 2 (2015): 453-463. https://doi.org/10.17559/TV-20141128090939
Harvard
Herakovič, N., Duhovnik, J., i Šimic, M. (2015). 'CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu', Tehnički vjesnik, 22(2), str. 453-463. doi: https://doi.org/10.17559/TV-20141128090939
Vancouver
Herakovič N, Duhovnik J, Šimic M. CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu. Tehnički vjesnik [Internet]. 2015 [pristupljeno 18.06.2019.];22(2):453-463. doi: https://doi.org/10.17559/TV-20141128090939
IEEE
N. Herakovič, J. Duhovnik i M. Šimic, "CFD simulacija smanjenja sila protoka fluida u hidrauličnom ventilu", Tehnički vjesnik, vol.22, br. 2, str. 453-463, 2015. [Online]. doi: https://doi.org/10.17559/TV-20141128090939

Sažetak
This paper describes some possible methods for the reduction of the axial static flow forces in hydraulic sliding-spool and small on/off seat valves. These forces increase with the increase in the volume flow and the pressure difference and thus determine higher actuation forces for the control of the valve unit. This results in the necessary use of more powerful actuators for the direct control of hydraulic valves. The topic is therefore very relevant from the energy consumption point of view regarding the actuation of hydraulic valves. To make the use of low-power actuators for the control of directly actuated valves possible also for higher hydraulic power the flow forces acting on the valve piston in the axial direction must be reduced. This paper presents one of the possible solutions with such a design of the hydraulic valve housing and the spool that the flow stream of the fluid through the valve causes minimal axial static forces. The main influential geometry parameters of the sliding-spool and seat valve are defined and analysed in detail using the CFD (Computational Fluid Dynamics) simulation tool Ansys CFX and experimental analysis for the validation of the numerical fluid model of the valve. The results of the research are very promising and prove that the axial component of the flow forces and therefore the necessary actuation force can be reduced significantly just by modifying the geometry of the valve housing and spool. Thus the power consumption of the actuator is minimised and the valve dynamic characteristics are improved at the same time.

Ključne riječi
CFD simulation; experimental analysis; fluid flow forces; geometry optimisation; seat valve; sliding-spool valve

Hrčak ID: 138109

URI
https://hrcak.srce.hr/138109

[hrvatski]

Posjeta: 1.662 *