Pressure ripple can be purposely used to transmit information within a hydraulic system. For example, introducing ripple at specific frequencies into a fluid line can activate a valve, eliminating electrical wires. A key element of this system is the hydraulic resonator that activates the valve when a specific frequency pressure ripple is present in the line. This paper presents a linear and nonlinear model of the hydraulic resonator with experimental validation. The hydraulic resonator consists of an inertance tube, a series capacitor, made up of a deforming elastic membrane, and an orifice. For system validation, displacement of a valve, the capacitor, and system pressure are measured. The model was effective at predicting the natural frequency of the system and the narrowness of the resonant peak. Different effects were also shown experimentally by changing the fluid’s viscosity and system parameters.
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BATH/ASME 2018 Symposium on Fluid Power and Motion Control
September 12–14, 2018
Bath, UK
Conference Sponsors:
- Fluid Power Systems and Technology Division
ISBN:
978-0-7918-5196-8
PROCEEDINGS PAPER
Addressing Valves With Pressure Ripple Available to Purchase
Ryan J. Foss,
Ryan J. Foss
University of Minnesota, Minneapolis, MN
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Mengtang Li,
Mengtang Li
Vanderbilt University, Nashville, TN
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Eric J. Barth,
Eric J. Barth
Vanderbilt University, Nashville, TN
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Kim A. Stelson,
Kim A. Stelson
University of Minnesota, Minneapolis, MN
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James D. Van de Ven
James D. Van de Ven
University of Minnesota, Minneapolis, MN
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Ryan J. Foss
University of Minnesota, Minneapolis, MN
Mengtang Li
Vanderbilt University, Nashville, TN
Eric J. Barth
Vanderbilt University, Nashville, TN
Kim A. Stelson
University of Minnesota, Minneapolis, MN
James D. Van de Ven
University of Minnesota, Minneapolis, MN
Paper No:
FPMC2018-8809, V001T01A005; 10 pages
Published Online:
November 20, 2018
Citation
Foss, RJ, Li, M, Barth, EJ, Stelson, KA, & Van de Ven, JD. "Addressing Valves With Pressure Ripple." Proceedings of the BATH/ASME 2018 Symposium on Fluid Power and Motion Control. BATH/ASME 2018 Symposium on Fluid Power and Motion Control. Bath, UK. September 12–14, 2018. V001T01A005. ASME. https://doi.org/10.1115/FPMC2018-8809
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