21607 集中質量を付加した二重曲率偏平シェルパネルのカオス振動実験(振動解析とその応用II,OS.2 振動解析とその応用)

概要

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Experimental results are presented on chaotic oscillations of a shallow shell-panel with a concentrated mass. The shell-panel is excited by lateral periodic acceleration. Chaotic responses are generated in specific regions of the exciting frequency. Changing the mass ratio and the location of the concentrated mass, the chaotic responses are examined with the Fourier spectrum and the maximum Lyapunov exponent. The Lyapunov exponent of the chaotic response of the shell with the mass takes smaller value than that of the shell without a mass. Contribution of modes of vibration to the chaotic response is analyzed with the principal component analysis. The patterns of the vibration modes which contributes to the chaotic responses are transformed by the concentrated mass.
一般社団法人日本機械学会の論文
2007-03-15