製品定義システムにおける構造解析支援システムの構築

概要

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Authors have studied and developed SODAS (System Of Design and Assembling for Shipbuilding), which is the Ship Product Definition System for Shipbuilding. SODAS is implemented based on the concept of a product model. Authors consider that a product model should be used from design stage to manufacturing stage consistently. On the other hand, because of recent development of techniques of finite element analysis and rapid progress of computer hardware, the finite element analysis has become a useful tool in the design stage of industrial products. The biggest difficulty here is to make a model of complicated configuration of industrial products, which is the most time consuming work for engineers. In this paper, authors propose a model-based finite element analysis system. This model-based finite element analysis system is based on the previously implemented SODAS. In order to make a finite element model, informations of product model from SODAS are revised. Furthermore the structural functions of structural members are introduced into a product model. It is shown in this paper that a utility of a product model is confirmed not only in design stage but also in finite element analysis stage, Some calculated examples of the structure of bulk carrier are shown in this paper.