DYNAMIC CHARACTERISTICS OF BLOCKED CONCENTRIC CASCADED PNEUMATIC TRANSMISSION LINES.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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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
- Electrical and Electronic Equipment
- Statistics and Probability
- Hydraulic and Pneumatic Equipment