1732 採血ポンプ用圧電アクチュエータの開発(S16-2 アクチュエータ・高分子材料,S16 先進材料の強度・機能評価とメゾメカニックス)

概要

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A piezoelectric actuator for blood extraction pump in health monitoring system was developed. We devised the geometry of piezoelectric actuator with some slits, that allows the stretching and contracting deformation in in-plane direction to create large deflection in out-of-plane direction. The static behaviors under uniform electric field have been analyzed by finite element method. The numerical results indicated that the deformation of bimorph actuator changes from complex mode to single mode according to increase of slit length. A bimorph actuator with 4 slits l=2.0, w=0.5mm has been manufactured as an experiment. As a result, the developed actuator was proved to increase the deflection to 6.6 times at resonance frequency f=2640Hz.
一般社団法人日本機械学会の論文
2005-09-18