| 基于ANSYS与OpenGL的高速公路结构物仿真建模及三维地层地表修剪方法 |
| |
| 引用本文： | 杨锡鎏,周翠英.基于ANSYS与OpenGL的高速公路结构物仿真建模及三维地层地表修剪方法[J].岩土力学,2010,31(2):571-576. |
| |
| 作者姓名： | 杨锡鎏 周翠英 |
| |
| 作者单位： | 1.中山大学 工学院，广州 510275；2.中山大学 岩土工程与信息技术研究中心，广州 510275 |
| |
| 基金项目： | 国家863高技术研究发展计划，国家自然科学基金，高等学校博士学科点基金，广东省自然科学基金重点项目，广东省科技计划项目 |
| |
| 摘 要： | 现代三维视景建模与仿真技术在高速公路工程选线、施工以及运营管理中具有良好的应用前景。结构物的仿真建模以及能反映施工前后地表形态变化的三维地层模型研究是高速公路信息化中的重要问题。介绍了一种借用ANSYS有限元分析软件提取结构物三维模型表面几何信息的简便方法；结合OpenGL纹理贴图技术，实现了结构物的仿真建模；针对结构物施工后对地表形态改变较大的问题，提出利用结构物表面数据对三维地层模型地表网格进行修剪的方法--地表网格竖直投影修剪法。把上述方法应用到广东省某高速公路高边坡的三维视景仿真建模中，结果表明，边坡的仿真模型较逼真。三维地层模型修剪后的地表形态与真实情况接近，验证了方法的合理性、可靠性。
|
| 关 键 词： | 仿真建模 ANSYS OpenGL 结构物 三维地层地表 修剪方法 |
| 收稿时间： | 2009-03-02 |
Emulation modeling for structures and clipping method for ground surface of 3D stratum along highway based on ANSYS and OpenGL technology |
| |
| YANG Xi-liu,ZHOU Cui-ying.Emulation modeling for structures and clipping method for ground surface of 3D stratum along highway based on ANSYS and OpenGL technology[J].Rock and Soil Mechanics,2010,31(2):571-576. |
| |
| Authors: | YANG Xi-liu ZHOU Cui-ying |
| |
| Institution: | 1. School of Engineering, Sun Yat-Sen University, Guangzhou 510275, China; 2. Research Center for Geotechnical Engineering & Information Technology, Sun Yat-Sen University, Guangzhou 510275, China |
| |
| Abstract: | Modern 3D scenery modeling and emulation technology has wide application prospects in route selection, construction and operation management of highway engineering. The study of structures emulation modeling and 3D stratum modeling which can reflect the ground surface shape changing before and after construction are important problems in the research of highway informatization. A simple method to extract the geometry information from the surface of structure 3D model with ANSYS is introduced. By combining OpenGL texture mapping technology, the structure emulation model is realized. Because the shape of ground surface will be changed a lot after construction, a clipping method named vertical projection clipping method for surface grids, which makes use of the structure surface data to clip the ground surface grids of 3D stratum model, is put forward. By applying these methods to 3D scenery emulation modeling of a certain high slope in a highway in Guangdong Province of China, it is shown that the emulation model of the slope is lively; and the ground surface shape of the 3D stratum model is very close to the real one after clipping. It proves that these methods are feasible and reasonable. |
| |
| Keywords: | ANSYS OpenGL emulation modeling ANSYS OpenGL structure 3D stratum ground surface clipping method |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
