Date of Award

Spring 1971

Document Type

Thesis

Department

Mechanical & Aerospace Engineering

Program/Concentration

Thermal Engineering

Committee Director

A. S. Roberts, Jr.

Committee Member

Robert L. Ash

Committee Member

Ralph M. Rotty

Call Number for Print

Special Collections LD4331.E53B37

Abstract

Experiments were performed to determine the frequency response of gas filled instrument tubes, and the results were correlated with a theoretical model. The theoretical model developed by Bergh and Tijdeman for a series connection of thin circular tubes and volumes was studied in full detail and employed. A measuring system was designed and built to measure pressure ratio and phase lag employing thin nylon or vinyl tubes and strain gage transducers. 1'leasurements were performed using cathode ray tube, strip chart, analog techniques and also a commercial electronic function analyzer and the various results were compared. The theoretical and experimental influence of different parameters was observed. Dynamic response of the tubes with a terminal cavity was obtained at atmospheric and vacuum static pressure, using air and/or Freon-12 as different filling gases and with and without a terminal, multi-port scanner valve. The theory and experiments displayed the same qualitative dynamic pressure response.

Finally an at. tempt was made to develop the theoretical model for a step input pressure disturbance for a series connection of thin circular tubes and volumes.

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In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25777/banr-ys95

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