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

我们研究开发了造船产品定义系统SODA(造船设计与装配系统)。汽水是基于产品模型的概念来实现的。我们认为，产品模型从设计阶段到制造阶段应该是一致的。另一方面，由于最近有限元分析技术的发展和计算机硬件的快速发展，有限元分析已经成为工业产品设计阶段的有用工具。其中最大的困难是建立工业产品的复杂结构模型，这是工程人员最耗时的工作，本研究提出了一个基于模型的有限元分析系统。这个基于模型的有限元分析系统是在以前实现的SODA的基础上进行的，为了建立有限元模型，对纯碱中的产品模型信息进行了修改。此外，将结构构件的结构功能引入到产品模型中。研究表明，无论是在设计阶段，还是在有限元分析阶段，产品模型的实用性都得到了证实。尽管大型结构通常由船坞边吊承载，但在造船安装阶段的技术研究却很少。原因是，到目前为止，这些技术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性的变化。我们正面临着一个问题，那就是我们不能依赖于有技能的人。为了克服这一问题，计算机辅助技术被认为是最有力的手段之一。在本研究中，考虑了一个以苏打水为基础的架设阶段的计算机仿真系统。

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.