Phase Control Method of a Valve inducing Self-excited Vibration Driven by Fluid Power

Abstract

This paper describes the development of a new valve that performs the intake and exhaust of a closed flow path by self-excited vibration instead of using electricity. Recently, soft fluid powered robots are developed actively, because of its high power density, lightweight and flexibility. But the more complex the robot, the larger the number of valves and supply tubes required. So in this paper, I propose a valve that self-forces the compression and decompression, and show the results of several performance experiments. We propose a valve that can drive multiple actuators, and show how to remotely control the actuator phase using an air signal.