A Computer Program for Predicting the Frequency Response of Complex Pneumatic Line Networks.
Abstract
A computer program which can predict the frequency response of complex pneumatic line networks has been written in Fortran Extended language in overlay structure. The program assumes plane pressure wave propagation and small perturbations. The lines may terminate with an arifice, another line, two branching lines, or may be open or blocked. If the lines are not blocked the flow is calculated based on laminar flow equations for incompressible fluids, with corrections for pressure drops across each line. Experimental results were compared with computer prediction for frequencies up to 1200 hz. The blocked line cases showed excellent agreement with theory for both gain and phase shift. The case with flow overpredicted the peak pressure gains, but the frequencies at which the peaks occurred were predicted, and the phase shift data showed excellent agreement with theory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA023344
Entities
People
- Thomas A. Bird
Organizations
- Air Force Institute of Technology