Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
| Authors: | ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2017 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/109411 |
| Online Access: | https://hdl.handle.net/2117/109411 https://dx.doi.org/10.3390/en10111704 |
| Access Level: | Open access |
| Keyword: | Hydraulic machinery Cylinders Computational fluid dynamics Cylinder cushion Piston grooves Pressure-drop coefficients Màquines hidràuliques Cilindres Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| _version_ | 1878732632181702656 |
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| author | Castilla López, Roberto|||0000-0002-3848-2004 |
| author2 | Alemany, Ignasi Algar, Antonio Gámez Montero, Pedro Javier|||0000-0002-5168-3521 Roquet, Pedro Codina Macià, Esteban|||0000-0001-5389-6996 |
| author2_role | author author author author author |
| author_browse | Alemany, Ignasi Algar, Antonio Castilla López, Roberto|||0000-0002-3848-2004 Codina Macià, Esteban|||0000-0001-5389-6996 Gámez Montero, Pedro Javier|||0000-0002-5168-3521 Roquet, Pedro |
| author_facet | Castilla López, Roberto|||0000-0002-3848-2004 Alemany, Ignasi Algar, Antonio Gámez Montero, Pedro Javier|||0000-0002-5168-3521 Roquet, Pedro Codina Macià, Esteban|||0000-0001-5389-6996 |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0). |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_46bb69a033b315c917c3de894e693e4d |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:upcommons.upc.edu:2117/109411 |
| publishDate | 2017 |
| publishDateSort | 2017 |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation Castilla López, Roberto|||0000-0002-3848-2004 Alemany, Ignasi Algar, Antonio Gámez Montero, Pedro Javier|||0000-0002-5168-3521 Roquet, Pedro Codina Macià, Esteban|||0000-0001-5389-6996 Hydraulic machinery Cylinders Computational fluid dynamics Cylinder cushion Piston grooves Pressure-drop coefficients Màquines hidràuliques Cilindres Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0). Cushioning is an important aspect in hydraulic cylinder performance. The piston has to be decelerated before it strikes the end cap in order to avoid stresses in the cylinder components and reduce vibration that can be transmitted to the machine. One of the least-studied methods is internal cushioning by grooves in the piston. In this method, the flow is throttled with adequately designed grooves when the piston reaches the outlet port position. The purpose of the present work is to present a method to estimate the pressure-drop coefficients for a certain design of piston grooves in order to provide a model to develop a dynamic system simulation of the cushion system. The method is based on a computational fluid dynamic simulation of flow through piston grooves to the outlet port for each piston’s static position. The results are compared with experimental measurements, and a correction, based on Reynolds number, is proposed. Good agreement, below 16%, was obtained for all the positions but particularly for the last grooves, for which the numerical result’s deviation to the experimental measurements was less than 10%. In general, the numerical simulation tended to underestimate the pressure drop for the first grooves and overestimate the calculation for the last grooves. Peer Reviewed https://hdl.handle.net/2117/109411 https://dx.doi.org/10.3390/en10111704 |
| spellingShingle | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation Castilla López, Roberto|||0000-0002-3848-2004 Hydraulic machinery Cylinders Computational fluid dynamics Cylinder cushion Piston grooves Pressure-drop coefficients Màquines hidràuliques Cilindres Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| title | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| title_full | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| title_fullStr | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| title_full_unstemmed | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| title_short | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| title_sort | Pressure-drop coefficients for cushioning system of hydraulic cylinder with grooved piston: a computational fluid dynamic simulation |
| topic | Hydraulic machinery Cylinders Computational fluid dynamics Cylinder cushion Piston grooves Pressure-drop coefficients Màquines hidràuliques Cilindres Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| topic_facet | Hydraulic machinery Cylinders Computational fluid dynamics Cylinder cushion Piston grooves Pressure-drop coefficients Màquines hidràuliques Cilindres Dinàmica de fluids computacional Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
| url | https://hdl.handle.net/2117/109411 https://dx.doi.org/10.3390/en10111704 |