がたを有する被包装物の振動に関する実験的検討

概要

論文の詳細を見る
The purpose of this research is to grasp the effect of the gaps between the contents and the cushioning materials on the vibration of the contents. In this paper, the experiment with the equipment simulated the package with gaps has been conducted in order to examine the effect. In the previous papers, the numerical investigation and the theoretical one were conducted on the effect of gaps on the vibration of the contents. As a result, it has been clarified that following two phenomena occur, because the vibration transmissibility is nonlinear due to gaps. One is that the vibration of the contents increases rapidly, when the vibration acceleration applied to the package is larger than one value (the critical input acceleration). The other is that the frequency range in which the vibration of the contents increases (the resonant frequency range) spreads. These phenomena have to be investigated experimentally, because these have great effect on the equivalence between a vibration test and a real transportation. As a result of the experiment, it has been confirmed that these phenomena ("the existence of the critical input acceleration" and "the spread of the resonant frequency range") occur in the actual experiment.
社団法人日本航海学会の論文
2006-03-25