自然風波中における漁船船型モデルの運動解析-I : 縦運動について

概要

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The authors have carried out experiments concerning the sea keeping quality of fishing boats in wind waves. An experiment with a model of the 124GT trawler provided the authors with the records of pitching of 46 runnings, and spectral analysis was carried out. On the other hand, motion spectra were computed on the basis of linerized theory from observed wave spectra and the frequency response functions calculated with OSM according to two hypotheses of long-crested and short-crested waves. In addition to spectra, n-th moments and ε, 1/n mean values of maxima computed by the probability density function of m_0 and ε obtained from calculated spectra were compared with observed values. The conclusions were obtained from a comparison of observed and computed results as follows. The spectrum, n-th moments, band-width parameter and 1/n mean values of the pitching motion of the fishing boat can be predicted with good accuracy by the procedures with wave spectra and frequency response functions mentioned above according to the hypothesis of short-crested waves, except in the cases of running in following or quartering seas and Fn. of under 0.3.
社団法人日本航海学会の論文
1982-02-25