208 Model-Based Estimation about Mechanical Characters of Artificial Vessels Using Experimental Dynamic Response Data

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概要

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• Previous researches suggest the stiffness index in different state of arterial vessels. They approximate arterial vessel as the thin circular cylindrical shell based on DonnelFs theory and Flugge's theory. These studies illustrate the changes of stiffness in different thickness, and different materials. Present study proposes the primary mechanical model based on Love's theory. Furthermore in order to confirm the result of model, the experiments were carried out on different artificial tubes. These tubes created by different material in different thickness. The circulating circuit is applied as the circulatory system of human body, and water is designated as the working fluid of the circulating circuit. Tubes were setup in this circuit. Experimental data applied for mechanical model and mechanical parameters identified using Downhill simplex method as the inverse problem. In this study stiffness index and damping ratio were identified and the result of Love's theory was compared with measurement data and DonnelPs theory. The result shows that present study can confirm the measurement data with the fine approximation.

• 一般社団法人日本機械学会の論文
• 2011-09-05

著者

• SAITO Takashi

  Yamaguchi Univ. Dept. of Mechanical Engineering

• VALI Rahil

  Yamaguchi Univ. Dept. of Mechanical Engineering

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• 208 Model-Based Estimation about Mechanical Characters of Artificial Vessels Using Experimental Dynamic Response Data

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