摘要
在结构动力响应时程分析中，如何对计算得到的大量结果进行合理的处理和表达直接影响到我们对结构动力响应的理解和认识。应用科学计算可视化的基本原理和方法，本文对大型土木工程结构在地震作用下结构动力分析时程分析结果的图形表达进行了系统深入的研究，建立了相应的数据结构和可视化模型，提出了对结构动力响应时程分析计算结果的计算机动画显示处理方案，并以OpenGL作为图形工具对程序设计进行了讨论。应用所提出的三维物体表示方法和相应软件技术，建立了结构的真实感模型并完成了典型结构动力响应时程分析结果的计算机动画显示。
The way to process and express the mass aesult - data of structural dynamic response time - history analysis will dinytly influence our understanding of the dynamic response of the structure. A systemic research has been carried out in this paper on the graphics expression of the vibration Of a typical structure based on the principle and method of computing visualizaion.The charateristic of the nsult got in structund dynarnic calculation is analyzed and an efficient data strueture i8 established especially for the dynamic graphic description. The triangle -fragment - branch method for the expression of distorted surface of the structure is put forward and program design is discussed with OpenGL as graphic tool. A three - dimensional model of a cabled - stayed bridge has been established in the paper with the usag of the method and the comeponding software technique, and a smooth and high - resolution animated cartoon simulation of the bridge under earthquake action has been accomplished.
出处
《土木工程学报》
EI
CSCD
北大核心
2000年第2期46-50,共5页
China Civil Engineering Journal
关键词
动力响应分析
科学计算可视化
三维实体模型
dynamic analysis, visualization in scientific calculation, three-dimensional model, computer animation
