As the complexity of ship structural designs keeps on increasing, the use of statistical techniques to build approximation models for expensive computer analysis is getting popular.
随着船舶结构设计日益复杂，使用统计学方法为复杂的计算机分析建立近似模型已经逐渐成为一种趋势。
Finally, reliability index of the approximation is evaluated by geometric method in structural reliability analysis.
最后用结构可靠度分析中的几何法来计算可靠度指标。
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