矩形水槽壁の接水振動について(第3報)

概要

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When side walls of a rectangular tank, which is filled with water, is vibrating, the inside water will also make vibratory motion. This motion of water lowers considerably the natural frequency of vibration of the side walls of the tank. This effect is conveniently expressed by "Virtual Mass" of water. In the previous report, the author has made a theoretical study on the value of "virtual mass" of water, restricting ourselves to the case in which two opposite side-walls (among the six walls) are vibrating. The present report is an outcome of continuation of this study, and treats the case in which four walls of the tank vibrate. An approximate formulae for natural frequency of vibration for whole system consisting of four walls and the inside water, is also given.The calculation throughout is made, regarding the water to be an incompressible, non-viscous fluid, and the amplitude of vibration to be infinitesimally small.
社団法人日本船舶海洋工学会の論文