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Modeling Noise Sources and Propagation in External Gear Pumps

Author

Listed:
  • Sangbeom Woo

    (Maha Fluid Power Research Center, Purdue University, 1500 Kepner dr., Lafayette, IN 47905, USA)

  • Timothy Opperwall

    (Maha Fluid Power Research Center, Purdue University, 1500 Kepner dr., Lafayette, IN 47905, USA)

  • Andrea Vacca

    (Maha Fluid Power Research Center, Purdue University, 1500 Kepner dr., Lafayette, IN 47905, USA)

  • Manuel Rigosi

    (Casappa SpA, Via Balestrieri 1, Lemignano di Collecchio, 43044 Parma, Italy)

Abstract

As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving the performance of current hydraulic systems, as well as applying fluid power systems to a wider range of applications. The present work aims at developing modeling techniques on the topic of noise generation caused by external gear pumps for high pressure applications, which can be useful and effective in investigating the interaction between noise sources and radiated noise and establishing the design guide for a quiet pump. In particular, this study classifies the internal noise sources into four types of effective load functions and, in the proposed model, these load functions are applied to the corresponding areas of the pump case in a realistic way. Vibration and sound radiation can then be predicted using a combined finite element and boundary element vibro-acoustic model. The radiated sound power and sound pressure for the different operating conditions are presented as the main outcomes of the acoustic model. The noise prediction was validated through comparison with the experimentally measured sound power levels.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:1068-:d:105604
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    References listed on IDEAS

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    1. 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.
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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. Timm Hieronymus & Thomas Lobsinger & Gunther Brenner, 2021. "A Combined CFD-FEM Approach to Predict Fluid-Borne Vibrations and Noise Radiation of a Rotary Vane Pump," Energies, MDPI, vol. 14(7), pages 1-23, March.
    3. Sangbeom Woo & Andrea Vacca, 2020. "Experimental Characterization and Evaluation of the Vibroacoustic Field of Hydraulic Pumps: The Case of an External Gear Pump," Energies, MDPI, vol. 13(24), pages 1-26, December.
    4. Jakub Milan Hradecký, 2023. "Description of Pressure-Multiplying Efficiency Model Creation Used for Pressure Intensifiers Based on Rotary Flow Dividers," Energies, MDPI, vol. 16(10), pages 1-21, May.

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