20311 PODによる多自由度系動力学の分析(OS6 非線形現象とその応用)

概要

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It is difficult to analyze nonlinear dynamical systems having multiple degrees of freedom, because the nonlinearity between components influences dynamics of the whole system and its behavior becomes quite complicated. POD (proper orthogonal decomposition) is useful in quantifying spatial correlation in dynamics of a system having multiple degrees of freedom. In this study, numerical analyses and experiments of forced vibration were conducted by using a dynamical model of a coupled high-T_c superconducting levitation system. Then, we applied POD to time series data obtained by experiments and numerical analyses to confirm usefulness of POD. We also applied POD to time courses of oxy hemoglobin and deoxy hemoglobin in capillary measured by NIRS-imaging, which is paid attention to as a new brain function measurement method, and discussed relation between the hemodynamics and cranial nerve activity.
社団法人日本機械学会の論文
2005-03-17