Vibration isolation in a free-piston driven Expansion tube

Gildfind, D. E., Morgan, R. G. and Jacobs, P. A. (2012). Vibration isolation in a free-piston driven Expansion tube. In: P. A. Brandner and B. W. Pearce, Proceedings of the 18th Australasian Fluid Mechanics Conference. 18th Australasian Fluid Mechanics Conference, Launceston, Australia, (). 3-7 December 2012.

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Author Gildfind, D. E.
Morgan, R. G.
Jacobs, P. A.
Title of paper Vibration isolation in a free-piston driven Expansion tube
Conference name 18th Australasian Fluid Mechanics Conference
Conference location Launceston, Australia
Conference dates 3-7 December 2012
Proceedings title Proceedings of the 18th Australasian Fluid Mechanics Conference
Journal name Proceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012
Place of Publication Hawthorn, VIC, Australia
Publisher Australasian Fluid Mechanics Society
Publication Year 2012
Sub-type Fully published paper
ISBN 9780646583730
Editor P. A. Brandner
B. W. Pearce
Total pages 4
Collection year 2013
Language eng
Abstract/Summary The stress waves produced by rapid piston deceleration are a fundamental feature of free-piston driven expansion tubes, and wave propagation has to be considered in the design process. For lower enthalpy test conditions, these waves can traverse the tube ahead of critical flow processes, severely interfering with static pressure measurements of the passing flow. This paper details a new device which decouples the driven tube from the free-piston driver, and thus prevents transmission of stress waves. Following successful incorporation of the concept in the smaller X2 facility, it has now been applied to the larger X3 facility, and results for both facilities are presented.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Wed, 12 Dec 2012, 09:32:20 EST by Mr David Gildfind on behalf of School of Mechanical and Mining Engineering