基于谱分析法的海洋工程结构强度评估方法研究

Spectral-based strength assessment of ocean engineering structure

随着海洋工程的发展,现有的结构分析方法越来越不适用于不断出现的新型式结构物强度分析。文章基于水动力理论及谱分析基本理论,提出基于谱分析法的海洋工程结构强度评估方法 ;借助有限元分析方法,以某型钻井船为例进行结构应力计算,以说明该方法不仅在理论上可行,同样具有较强的可操作性及实用型,从而对于日后海洋工程结构强度的评估提供另外一条新的途径。

With the development of the ocean engineering, the current structural analysis methods are becoming more and more difficult to analyze the strength of the new types of the constantly emerging structure. The spectral-based strength assessment of the ocean engineering structure is proposed based on the hydrodynamic theory and the basic spectral analysis theory. The structure stress of a drill ship is calculated together with the Finite Element Method to demonstrate that the proposed method is not only theoretically feasible but also operational and practical. It can provide a new approach for the strength assessment of the ocean engineering structure.