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Study on Dynamics of Air Pressure Reducing Valve With Focus on the Noise Attenuation Problem

[+] Author Affiliations
Lilia Badykova, Dmitry Stadnick, Kirill Afanasev, Alexander Igolkin, Victor Sverbilov

Samara State Aerospace University, Samara, Russia

Paper No. FPNI2014-7856, pp. V001T01A013; 4 pages
  • 8th FPNI Ph.D Symposium on Fluid Power
  • 8th FPNI Ph.D Symposium on Fluid Power
  • Lappeenranta, Finland, June 11–13, 2014
  • Conference Sponsors: Fluid Power Net International (FPNI), Lappeenranta University of Technology, Finland
  • ISBN: 978-0-7918-4582-0
  • Copyright © 2014 by ASME


The noise in natural gas distribution systems is mainly caused by pressure reduction in shut-off and control valves. The aim of present research is to analyze dynamics of an air pressure reducing valve with a muffler installed at its output. An increase of output impedance can lead to a loss in stability and control accuracy. Therefore, the valve simulation model in software package MATLAB/Simulink is developed in order to study the muffler’s impact on static and dynamic performances of the pressure reducing valve. As a result of performed modeling and simulation the influence of the output throttle resistance on the system main operating parameters is obtained. The output data can be used to optimize sizing of the muffler for the air pressure reducing valve.

Copyright © 2014 by ASME



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