Thiago Ferreira
Laboratoire Ampère, Universitå de Lyon, Lyon, France
Sylvie Sesmat
Laboratoire Ampère, Universitå de Lyon, Lyon, France
Eric Bideaux
Laboratoire Ampère, Universitå de Lyon, Lyon, France
Fabien Sixdenier
Laboratoire Ampère, Universitå de Lyon, Lyon, France
Download article
http://dx.doi.org/10.3384/ecp1392a45Published in: 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Linköping Electronic Conference Proceedings 92:45, p. 457-464
Published: 2013-09-09
ISBN: 978-91-7519-572-8
ISSN: 1650-3686 (print), 1650-3740 (online)
This paper presents a new experimental bench which allows the characterization of different fast switching valves in terms of flow rate and free air jet generation. By using this new tool; it is possible to study the different phenomena that may occur in the inner and outer circuit from the source up to free jet. The different sensors strategically positioned allow the determination of the flow characteristics of the valve as well as the dynamic behavior of the component on the generation of the pulsed air jets. By the tests performed with a fast spool-sleeve valve; it was possible to determine its conductance curve as well as its critical pressure ratio. These values obtained were used to build an average mass flow rate curve which is compared to the one measured by using a flowmeter during dynamic tests. The next step consist on exploring the jet in a 3D space by means of a 5-hole probe which provides the information on pressure; temperature and velocity necessary to determine the most suitable zone to perform object manipulation with the jet. Also its unsteady behavior can be observed allowing the identification of frequency limits in which the jet efficiency starts to decrease.
[1] H. Yamada; S. Tsuchiya; T. Muto; Y. Suematsu. Development of a low cost high-speed on/off Digital valve using a bimorph PZT actuator. 4th JHPS International Symposium; 591-596; 1999.
[2] S.N. Yun; Y.B. Ham; J.H Park; D.Y. Ham; L.Y Lee. Pressure control characteristics of Electro-Pneumatic Regulator with Two multilayered PZT Valves. Proceeding to the 7th JFPS International Symposium on Fluid Power. 449-452. 2008.
[3] S.N. Yun; Y.B. Ham; J.H. Park; H.H. Kim; H.J So. Design Strategy of a Piezoelectric Valve for a Color Sorter. Journal of the Korean Physical Society; Vol. 57; No. 4; 913-917. 2010.
[4] J. Dubois. Etude expérimentale de jets libres compressibles ou en présence d’un obstacle. PhD Thesis. Marseille. 2010.
[5] C. Donaldson and R. Snedeker. A study of free jet impingement part 1: mean properties of free and impinging jets. Journal of fluid Mechanics; 45; Part 2. 281-319. 1971.
[6] D.T Branson; F.C Wang; D.N Johnston; D.G Tilley; C.R Bowen; P.S Keogh. Piezoelectrically actuated hydraulic valve design for high bandwidth and flow performance. Proc. IMechE Vol. 225(3). 345-359. 2011.
[7] G.J Wilfong; M.A Bardorff; J.H Lumkes. Design and dynamics analysis of high speed ON/OFF Poppet Valves for digital pump/motors. Proc. 6th FPNI-PhD Symposium. 259-269. 2010.
[8] E.E. Topçu; I. Yüksel; Z. Kamis. Development of electro-pneumatic fast switching valve and investigation of its characteristics. Journal Mechatronics 16. 365-378. 2006.
[9] A. Leonhard. Untersuchungen zum pneumatischen Sortieren von Schüttgütern mittels Freistrahlen. PhD Thesis. Dresden. 2010.
[10]Aeroprobe documentation.
[11] S.S. Truong. Conical Probe Calibration and Wind Tunnel Data Analysis of the Channeled Centerbody Inlet Experiment. Bachelor Thesis. California Polytechnic State University. 2011
[12] E.S. Johansen; O.K. Rediniotis; G. Jones. The Compressible Calibration of Miniature Multi-Hole Probes. Transactions of the ASME. Vol 123. 128-137. 2001.
[13] ISO Standard 6358. International standard; Pneumatic fluid Power Components using compressible Fluids - Determination of flow rate characteristics. 1989.
[14]Kagawa; T.; Cai; M.; Kawashima; K.; Wang; T.; Nagaki; T.; Hasegawa; T.; and Oneyama; N. Extended representation of flow-rate characteristics for pneumatic components and its measurement using isothermal discharge method. Power Transmission and Motion Control; PTMC’04. 271–282. 2004.
