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Exploiting Valve Timing for Pneumatic Energy Savings

[+] Author Affiliations
Damiano Padovani

University of Agder, Grimstad, Norway

Eric J. Barth

Vanderbilt University, Nashville, TN

Paper No. FPMC2018-8871, pp. V001T01A037; 9 pages
doi:10.1115/FPMC2018-8871
From:
  • 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
  • Conference Sponsors: Fluid Power Systems and Technology Division
  • ISBN: 978-0-7918-5196-8
  • Copyright © 2018 by ASME

abstract

This research paper aims at addressing solutions that reduce air consumption in generic pneumatic systems used for pick-and-place operations. The investigation considers different system architectures both with a single control valve and two control valves arranged according to an independent metering configuration. Suitable control strategies are then proposed exploiting multiple timings to shut off the non-proportional switching valve(s). The resulting scenarios are experimentally evaluated on a dedicated test-bed. The main conclusion is that reduction of air consumption up to 73% is possible in comparison to the state-of-the-art layout for the reference application. Numerical simulations obtained by means of specific dynamic models suggest these air savings are consistent for actuators with different strokes.

Copyright © 2018 by ASME
Topics: Valves

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