304 狭い流路内に弾性支持された円柱の渦励起振動 : 流路幅の影響(T01-1 マイクロ・ナノダイナミクスの計測と制御(1),大会テーマセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The development of a Micro Electro Mechanical System(MEMS) like a capsule endoscope such as located in a small-diameter tube is remarkable in recent years. It is also very interesting from the viewpoint of nonlinear dynamics associated with the fluid-solid interactions. For instance, gap flows between the MEMS and the surrounding wall change due to the vibration of the MEMS. In this research, we have observed the vortex-induced transverse vibration of a spring-supported circular cylinder in a narrow channel as fundamental investigations. In experiments using the dynamical similar model, we clarified particularly the effect of channel wall on the lock-in phenomena.
2008-08-02