側壁付着型素子の切換時間に及ぼす機械的振動の影響について

概要

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Since fluidic devices have not mechanical movable parts, it is well known that one of the most distinguishing characters of these devices is that they are not influenced by mechanical vibration, but it can be thought that some effects are created by mechanical vibration so long as the behaviours of these devices depend on a dynamical motion. Then, in this paper, an experimental research is performed by vibrating some wall attachment amplifiers with pentagonal splitter to three directions , parallel to the main jet flow (Y-direction), parallel to the vented flow (X-direction), perpendicular to both the main jet and the vented flow (Z-direction). Air is used as working fluid and the frequency is varied from 0 to 50 Hz. From the results of this experiment, it becomes clear as follows;　1) The recovery pressure is not affected by mechanical vibration.　2) Switching time is affected by the direction of vibration. The effect of vibration to X- and Z- direct1on is comparatively remarkable in the case of a small quantity of both a supply flow and a control pressure, but it almost vanishes as the supply flow and / or the control pressure increases.　Further experimental research is performed by changing the size of devices. It can be guessed from the results of this experiment that there are many differences between a large device and a small one.
山形大学の論文
1974-02-20