Abstract
This paper describes the frequency characteristics of a peneumatic valve-controlled cylinder system with an unevenunderlap and different-port-widths four-way valve. Theoretical analysis is made of the frequency characteristics of the system wherein a valve which has the unevenness of the underlaps (i), the mean underlap J and the port width ratio ζ used, and an inertial load with both viscous friction and Coulomb friction is applied to the cylinder, and the flow versus pressure curves for the valve are approximated partially as polinomials of degree 3 of the pressure. The tendency shown by the theoretical results agrees fairly well with that by the experimental results.
It is shown that a suitable selection of and 1 may reduce the air consumption for a peneumatic servo system.
