DYNAMIC CHARACTERISTICS OF BLOCKED CONCENTRIC CASCADED PNEUMATIC TRANSMISSION LINES.
Abstract
A transfer function based on the electric-pneumatic analog theory for small signals is developed for blocked, cylindrical, concentrically cascaded pneumatic transmission lines. Calculations using this transfer function closely compare with (1) experimental results for single 0.170-in. ID lines of several lengths (20 feet and less) at mean pressures of 10, 25, and 40 psig; and (2) experimental results for a 30.987-in. long, 0.170-in. ID line connected in cascade with a 1.593-in. ID line of several short lengths (7.394 in. and less). The results clearly show that the chamber of a cylindrical-volume-terminated line acts as a second line connected in cascade with the first. The accuracy of the electrical analog transfer function is compared with the accuracy of transfer functions obtained from other models, and a simplified method of calculating the electrical analog transmission line characteristics is presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1968
- Accession Number
- AD0832659
Entities
People
- Richard Neal Miller
Organizations
- Air Force Institute of Technology