部分的に液体が満たされた薄肉円筒殻の動的不安定挙動に関する実験的研究

概要

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Pressure vessels and liquid storage tanks have often been commented publicly by damaged accidents due to severe vibrations. In this study, dynamic instability behavior of partially Liquid-filled thin cylindrical shells subjected to vertical excitation is observed experimentally. The vibrating acceleration applied on the shell, the surface deformation of the shell and the acoustic spectrum are measured. The transition to a dynamically instable state is recognized under each of liquid-filled range. The vibration patterns are observed in these transitional conditions. The acoustic spectra generated from a shell has also changed according to the vibrated shell surface patterns. At the highre liquid potential head in a shell, the primary transitional acceleration is caused in lower frequency region. The specimen of a cylindrical shell used in this experiment is made of Lummiror polyester sheet, and water is used as a liquid.
東海大学の論文