構造初期計画における船体構造疲労強度評価法 : その1 モニター構造による設計波の導出

概要

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To evaluate the fatigue strength of hull structural members, it is requested not only to estimate the maximum value of the loads but also the amplitude of them working on the structures. In this connection, the authors propose the estimation method of the stress responses by using the Monitor Structure to obtain the statistical load amplitude necessary to evaluate fatigue strength. The Monitor Structures composed of the simple beam models are defined so as to give similar stress response to those of actual hull structure. By using the Monitor Structure, the time history of stress, the stress amplitude, and the response function of them can be calculated without structural analysis in detail which needs too much time. Moreover, the design waves to investigate the fatigue strength can be estimated reasonably by calculating the long-term distribution of stress amplitudes obtained from those response functions.
社団法人日本船舶海洋工学会の論文
2000-03-29