Modal Analysis for Externally Driven Micropump and Additional Mass Effect of Water

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概要

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• The externally driven micropump is common means of transporting liquid on the microscale. It is usually difficult to evaluate the oscillation characteristics with the influence of the liquid inside the micropump taken into account. In this study, modal analysis with an additional mass effect of liquid is carried out for the evaluation of the influences of miniaturization and internal liquid. Analyses under three typical conditions of microfluidics devices were carried out: (1) cantilever-type actuator vibrates a flexible microchannel, (2) film-type actuator vibrates a microchannel, and (3) oscillation of single microchannel. The results indicate that the liquid inside the microchannel and the microchannel shape greatly influence the oscillation characteristics. The microchannel should be designed to have a small aspect ratio, a large cross-sectional area of the upper wall, and a cross-sectional area of channel smaller than that of the upper wall. These effects should be taken into account in the design of the externally driven micropunp.

• 2008-06-25

著者

• Kanno Isaku

  Department Of Mechanical Engineering Kyoto University

• Suzuki Takaaki

  Department Of Dermatology Kobe University School Of Medicine

• Kotera Hidetoshi

  Department Of Mechanical Engineering Kyoto University

• Ogawa Junya

  Department Of Micro Engineering Kyoto University

• Kotera H

  Kyoto Univ. Kyoto Jpn

• Ishikawa Satoshi

  Mechanical Design and Analysis Corporation, Nagoya 460-0003, Japan

• Kanda Kensuke

  Advanced Software Technology and Mechatronics Research Institute of Kyoto, Kyoto 606-8501, Japan

• Kanno Isaku

  Department of Microengineering, Kyoto University, Kyoto 606-8501, Japan

• KOTERA Hidetoshi

  Department of Mechanical Engineering, Kyoto University

• Kotera Hidetoshi

  Department of Micro Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan

• Kotera Hidetoshi

  Department of Microengineering, Kyoto University, Kyoto 606-8501, Japan

• Ogawa Junya

  Department of Microengineering, Kyoto University, Kyoto 606-8501, Japan

• Suzuki Takaaki

  Department of Applied Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8610, Japan

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