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Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation

Author

Listed:
  • Divya Thiagarajan

    (Maha Fluid Power Research Center, Purdue University, Lafayette, IN 47905, USA)

  • Andrea Vacca

    (Maha Fluid Power Research Center, Purdue University, Lafayette, IN 47905, USA)

Abstract

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.

Suggested Citation

  • Divya Thiagarajan & Andrea Vacca, 2017. "Mixed Lubrication Effects in the Lateral Lubricating Interfaces of External Gear Machines: Modelling and Experimental Validation," Energies, MDPI, vol. 10(1), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:1:p:111-:d:88239
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    Citations

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    Cited by:

    1. Andrea Vacca, 2018. "Energy Efficiency and Controllability of Fluid Power Systems," Energies, MDPI, vol. 11(5), pages 1-6, May.
    2. Yu Dai & Feiyue Ma & Xiang Zhu & Qiao Su & Xiaozhou Hu, 2019. "Evaluation and Optimization of the Oil Jet Lubrication Performance for Orthogonal Face Gear Drive: Modelling, Simulation and Experimental Validation," Energies, MDPI, vol. 12(10), pages 1-23, May.
    3. Pedro Javier Gamez-Montero & Robert Castilla & Esteve Codina & Javier Freire & Joan Morató & Enric Sanchez-Casas & Ivan Flotats, 2017. "GeroMAG: In-House Prototype of an Innovative Sealed, Compact and Non-Shaft-Driven Gerotor Pump with Magnetically-Driving Outer Rotor," Energies, MDPI, vol. 10(4), pages 1-14, March.
    4. Miquel Torrent & Pedro Javier Gamez-Montero & Esteban Codina, 2021. "Parameterization, Modeling, and Validation in Real Conditions of an External Gear Pump," Sustainability, MDPI, vol. 13(6), pages 1-20, March.
    5. Sangbeom Woo & Timothy Opperwall & Andrea Vacca & Manuel Rigosi, 2017. "Modeling Noise Sources and Propagation in External Gear Pumps," Energies, MDPI, vol. 10(7), pages 1-20, July.
    6. Pedro Javier Gamez-Montero & Piotr Antoniak & Robert Castilla & Javier Freire & Justyna Krawczyk & Jaroslaw Stryczek & Esteve Codina, 2017. "Magnet-Sleeve-Sealed Mini Trochoidal-Gear Pump Prototype with Polymer Composite Gear," Energies, MDPI, vol. 10(10), pages 1-18, September.
    7. Junhui Zhang & Ying Li & Bing Xu & Min Pan & Fei Lv, 2017. "Experimental Study on the Influence of the Rotating Cylinder Block and Pistons on Churning Losses in Axial Piston Pumps," Energies, MDPI, vol. 10(5), pages 1-15, May.
    8. Massimo Rundo, 2017. "Models for Flow Rate Simulation in Gear Pumps: A Review," Energies, MDPI, vol. 10(9), pages 1-32, August.
    9. Barbara Zardin & Emiliano Natali & Massimo Borghi, 2019. "Evaluation of the Hydro—Mechanical Efficiency of External Gear Pumps," Energies, MDPI, vol. 12(13), pages 1-19, June.
    10. Alessandro Corvaglia & Massimo Rundo & Paolo Casoli & Antonio Lettini, 2021. "Evaluation of Tooth Space Pressure and Incomplete Filling in External Gear Pumps by Means of Three-Dimensional CFD Simulations," Energies, MDPI, vol. 14(2), pages 1-16, January.

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