Application of Three-Dimensional Visual Simulation in Tidal Defense Engineering

• Published in: Transactions of Tianjin University Vol. 19; no. 1; pp. 1 - 9
• Main Author: 钟登华 杨斌 李文倩 刘东海 佟大威
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University 01.02.2013; State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
• Subjects: Engineering; Humanities and Social Sciences; Mechanical Engineering; multidisciplinary; Science; 三维可视化仿真; 不规则三角网; 应用; 数字地形模型; 潮汐; 纹理映射技术; 防御工程; 非均匀有理B样条; simulation modeling; three-dimensional visual simulation; tidal defense engineering
• ISSN: 1006-4982; 1995-8196
• DOI: 10.1007/s12209-013-1951-6

Any tidal defense engineering involves the collection and analysis of massive information about engineering structures and their surrounding environment. Traditional method, which is carried out mainly by means of twodimensional drawings and textures, is not efficient and intuitive enough to analyze the whole project and reflect its spatial relationship. Three-dimensional visual simulation provides an advanced technical means of solving this problem. In this paper, triangular irregular network （TIN） model simplified by non-uniform rational B-splines （NURBS） technique was used to establish the digital terrain model （DTM） of a super large region. Simulation of dynamic water surface was realized by combining noise function with sine wave superposition method. Models of different objects were established with different modeling techniques according to their characteristics. Application of texture mapping technology remarkably improved the authenticity of the models. Taking the tidal defense engineering in the new coastal region of Tianjin as a case study, three-dimensional visual simulation and dynamic roaming of the study area were realized, providing visual analysis and visible demonstration method for the management and emergency decision-making associated with construction.