Addressing valves with pressure ripple

Ryan J. Foss, Mengtang Li, Eric J. Barth, Kim A Stelson, James D Van De Ven

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationBATH/ASME 2018 Symposium on Fluid Power and Motion Control, FPMC 2018
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791851968
DOIs
StatePublished - Jan 1 2018
EventBATH/ASME 2018 Symposium on Fluid Power and Motion Control, FPMC 2018 - Bath, United Kingdom
Duration: Sep 12 2018Sep 14 2018

Publication series

NameBATH/ASME 2018 Symposium on Fluid Power and Motion Control, FPMC 2018

Other

OtherBATH/ASME 2018 Symposium on Fluid Power and Motion Control, FPMC 2018
CountryUnited Kingdom
CityBath
Period9/12/189/14/18

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