鉛直加振下における液体層の多孔質層による安定化について

概要

論文の詳細を見る
Stability of a viscous liquid layer of horizontally infinite extent, on the bottom of which a liquid saturated porous plate is set, is studied theoretically and experimentally under a vertical oscillation. The theoretical analysis is carried out under the assumption that the system is most strongly excited by the 1/2 subharmonic response. The neutral stability curves are found theoretically in the plane of the frequency-amplitude of the applied force. On the other hand, the experiment is undertaken by using the aqueous glycerin and the porous plate of the sponge rubber. From the theoretical and experimental results, it is found that if a porous plate is set on the bottom of the liquid layer at a constant total depth, the system is stabilized, and if the solid bottom of the liquid layer is replaced with a porous one at a constant depth of the liquid layer, it is also stabilized. Thus, in any case, the system is stabilized by the presence of a porous plate.
社団法人日本機械学会の論文
1989-04-25