Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation
This article presents a novel mixed-thermoelastohydrodynamic (TEHD) model for the lateral lubricating interfaces which exist between floating lateral bushings and gears in external gear machines (EGMs). The proposed model integrates the influence of surface asperities along with the fluid structure...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/10/1/111 |
| _version_ | 1811263351279321088 |
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| author | Divya Thiagarajan Andrea Vacca |
| author_facet | Divya Thiagarajan Andrea Vacca |
| author_sort | Divya Thiagarajan |
| collection | DOAJ |
| description | This article presents a novel mixed-thermoelastohydrodynamic (TEHD) model for the lateral lubricating interfaces which exist between floating lateral bushings and gears in external gear machines (EGMs). The proposed model integrates the influence of surface asperities along with the fluid structure and thermal interaction in the interface, especially in the regions of very low film thicknesses by following a stochastic approach in modelling the mixed lubrication regime. Furthermore, the current work includes validation of the predictions of the mixed-TEHD model against experimentally measured leakages from the lateral gap and compares the performance of this model with a previously developed full film TEHD model for the lateral gaps in EGMs. |
| first_indexed | 2024-04-12T19:44:17Z |
| format | Article |
| id | doaj.art-696760b175a54cc1808db52d0cdcb741 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-12T19:44:17Z |
| publishDate | 2017-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-696760b175a54cc1808db52d0cdcb7412022-12-22T03:19:01ZengMDPI AGEnergies1996-10732017-01-0110111110.3390/en10010111en10010111Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental ValidationDivya Thiagarajan0Andrea Vacca1Maha Fluid Power Research Center, Purdue University, Lafayette, IN 47905, USAMaha Fluid Power Research Center, Purdue University, Lafayette, IN 47905, USAThis article presents a novel mixed-thermoelastohydrodynamic (TEHD) model for the lateral lubricating interfaces which exist between floating lateral bushings and gears in external gear machines (EGMs). The proposed model integrates the influence of surface asperities along with the fluid structure and thermal interaction in the interface, especially in the regions of very low film thicknesses by following a stochastic approach in modelling the mixed lubrication regime. Furthermore, the current work includes validation of the predictions of the mixed-TEHD model against experimentally measured leakages from the lateral gap and compares the performance of this model with a previously developed full film TEHD model for the lateral gaps in EGMs.http://www.mdpi.com/1996-1073/10/1/111gear pumpsmixed lubricationthermoelastohydrodynamic (TEHD)fluid powerhydraulics |
| spellingShingle | Divya Thiagarajan Andrea Vacca Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation Energies gear pumps mixed lubrication thermoelastohydrodynamic (TEHD) fluid power hydraulics |
| title | Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation |
| title_full | Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation |
| title_fullStr | Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation |
| title_full_unstemmed | Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation |
| title_short | Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation |
| title_sort | mixed lubrication effects in the lateral lubricating interfaces of external gear machines modelling and experimental validation |
| topic | gear pumps mixed lubrication thermoelastohydrodynamic (TEHD) fluid power hydraulics |
| url | http://www.mdpi.com/1996-1073/10/1/111 |
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