柔軟な発泡材料を用いた空力振動角柱模型の機械的性質及び曲げ振動特性について

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タイトル別名
  • MECHANICAL PROPERTIES AND BENDING VIBRATION CHARACTERISTICS OF AERODYNAMIC SQUARE PRISMS MADE OF FLEXIBLE FOAM MATERIAL

抄録

<p>In the future, skyscrapers or large structures will become lighter and more flexible. In order to clarify the aerodynamic behavior of such structures by wind tunnel test, flexible, low-density square prism models were developed using polyurethane foam. In this report, mechanical properties and bending vibration characteristics of the models are investigated by material tests and vibration tests. The results show that the models can be treated as uniform and elastic within the range of the deformation occurred by the across-wind aerodynamic vibration. It is shown that, bending vibration characteristics can be evaluated using the Bernoulli-Euler beam theory.</p>

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