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A Research of Structural Analysis Model for Steel Structures on Finite Element Method

钢结构有限元结构分析模型研究

基本信息

批准号：
05302053
负责人：
NOMOTO Toshiharu
金额：
$ 3.14万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

项目摘要

We 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. We 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 progess 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, whith is the most time consuming work for engineers.In this research, we 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 research that a utility of a product model is confirmed not only in design stage but also in finite element analysis stage.And even though large scale of structures are usually carried by dock side crane, few studies have been done on the technology in the erection stage for shipbuilding. The reason is that those technologies have been thus far supported by the highly skilled people. Now situations is radically changing with respect to human resources. We are facing the problem that we will not be relied on the skillful people. In order to overcome this problem, computer aided technology is thought as one of the most powerful methods.In this research, a computer simulation system for the erection stage is considerd by using SODAS.

我们研究并开发了面向造船的船舶产品定义系统SODAS（System Of Design and Assembling for Shipbuilding）。SODAS是基于产品模型的概念实现的。另一方面，由于有限元分析技术的发展和计算机硬件的快速发展，有限元分析已成为工业产品设计阶段的有用工具。本文提出了一种基于模型的工业产品有限元分析系统。基于模型的有限元分析系统是在SODAS的基础上开发的，通过对SODAS中的产品模型信息进行修改，生成有限元模型。在产品模型中引入结构件的结构功能。研究结果表明，产品模型不仅在设计阶段，而且在有限元分析阶段都是有用的，尽管大型结构通常由码头边起重机承载，但很少有人对造船安装阶段的技术进行研究。原因是这些技术迄今为止一直得到高技能人员的支持。现在，人力资源方面的情况正在发生根本变化。我们面临的问题是我们不会依赖有技能的人。为了解决这一问题，计算机辅助技术被认为是最有力的手段之一，本研究利用SODAS软件开发了一个架设阶段的计算机仿真系统。