基于MicroStation的结构有限元分析接口构建  

Construction of Interface for Finite-element Analysis of Structures Based on MicroStation

作　　者：袁彦辉 沈振中[2] 黄维[1] Yuan Yanhui;Shen Zhenzhong;Huang Wei(Huadong Engineering Corporation Limited,Hanzhou 310014,China;Hohai University,Nanjing 210024,China)

机构地区：[1]华东勘测设计研究院有限公司,杭州310014 [2]河海大学,南京210024

出　　处：《科技通报》2022年第5期43-51,共9页Bulletin of Science and Technology

摘　　要：构建基于BIM系统的有限元分析接口,可以依托BIM模型实现工程数值模拟流程,有效整合资源。基于MicroStation模型数据库访问接口,转换模型几何信息为边界表示的描述。结合空间索引数据结构及哈希算法,实现几何对象的快速合并,获得模型的完整拓扑信息。在几何对象上定义附属信息及集合信息,为网格自动生成参数的设置及计算模型的材料绑定、荷载施加等操作提供基础。分析面板堆石坝几何模型的拓扑关系,构建连续体及界面网格的自动生成方法,并自动获得网格对象的集合。该接口对于提升BIM系统的应用水平具有重要意义。By building the FEA interface for BIM system, a workflow of numerical simulation for structures based on BIM model can be established and the resource be integrated effectively. Convert the geometry information of model to a description of boundary representation using the model accessing interface of MicroStation. By introducing the spatial indexing data structures and hash algorithm, a fast merge of geometric object can be achieved and the complete topology information can be obtained. Define attribute and set information on geometric object, which provides the necessary information for automatic mesh generation and operation on computation model such as assigning material and applying loads. By analyzing the topological relation of geometry model of CFRD, an automatic generation method of continuum and interface element is established and set of mesh objects can be obtained. This interface is of great significance for promoting the application level of BIM system.

关 键 词：MICROSTATION 有限元分析接口 边界表示 网格自动生成 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]