S113042 流路の壁面運動を利用した圧電ポンプの検討([S11304]機械システムの要素技術と設計(4))

概要

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This study is about a piezoelectric pump which drives fluid by changing channel gap without check valve. The pump uses four stacked piezoelectric actuator. The piezoelectric actuators are placed with equidistance along channel. The channel is composed with base plate and thin elastic plate glued on the base plate. The elastic thin plate is risen up by the piezoelectric actuator. The four actuators are driven by trapezoidal input wave with some phase difference. Then fluid in the channel is pushed or squeezed gradual motion of the actuators. The pressure and flux performance of the pump are experimentally investigated. The maximum pressure and flux at actuator input voltage amplitude of 25V are about 81(13a and lcc/min respectively. Both of the results are too small for ability of the stacked piezoelectric actuators. It is mentioned that the reason why the performance is limited may mainly be from the structural design problem of this type of the pump.
一般社団法人日本機械学会の論文
2011-09-11