船首底衝撃による超高速船の過渡振動の統計予測について

概要

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The theoretical and experimental studies on the stochastic predictions of whipping vibration of a high speed container ship (L_<pp>=175m, C_B=0.575) due to slamming impact have been carried out. The short-term distributions of magnitude of whipping bending moment discribed in the present prediction, which were expressed by the generalized Rayleigh probability density function, and were compared with the results of model experiments in the irregular waves, and the comparisons of them resulted in a fairly good agreement. The short-term predictions of whipping vibration during ship operation of 0.5 hour in the seaway of Beaufort wind scale 7〜11 and the long-term predictions in the North Atlantic Ocean were also made in the range of F_n=0.05〜0.35. It is found from the results of the short-and long-term predictions that the magnitude of whipping bending moment due to slamming at the service speed in head sea condition becomes very greater than that of wave bending moment.
社団法人日本船舶海洋工学会の論文
1978-08-15