Application of a surrogate modeling to the ship structural design
Application of a surrogate modeling to the ship structural design
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DOI：
10.1016/j.oceaneng.2014.03.032
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发表时间：
2014-07
影响因子：
5
通讯作者：
P. Prebeg;V. Žanić;B. Važić
中科院分区：
文献类型：
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作者：
P. Prebeg;V. Žanić;B. Važić
复杂工程系统的多准则设计是一个方法学和计算量都很高、耗时长的过程。优化算法、问题分解、代理建模和决策支持方法是解决设计问题的常用综合方法。本文研究的目的是通过代理建模在这类问题上的应用来改进复杂薄壁船舶结构的设计过程。将所考虑的方法集成到交互式计算环境中进行多准则设计，以便在给定的设计时间框架内实现设计者和设计问题之间的有效和高效的交互。将代理建模应用于结构响应的近似，以减少优化循环中的有限元计算次数。以简单驳船为例，对所提出方法的适用性和不同代理建模方法的适用性进行了广泛的检验。
Multi-criteria design of complex engineering systems is methodologically and computationally demanding and time consuming process. Optimization algorithms, problem decomposition, surrogate modeling and methods for decision support are synthesis methods that are usually employed to solve the design problem. The objective of the research presented in this paper was to improve the design process of complex thin-walled ship structures through an application of surrogate modeling on this type of a problem. Methods considered are integrated into interactive computing environment for multi-criteria design in order to enable effective and efficient interaction between designer and design problem within given design timeframe. Surrogate modeling was applied for the approximation of structural responses in order to reduce a number of finite element method (FEM) calculations inside of optimization loop. Applicability of the proposed approach and suitability of different surrogate modeling methods for that purpose is extensively tested on the simple barge example.