摘要
利用虚拟现实技术模拟船舶三维模型在不同场景下的状态,能够实时分析船舶自身是否维持安全运行,为此提出基于虚拟现实技术的船舶三维建模设计研究。采用CATIA方法构建船舶三维模型,并引入AutoCAD提取船舶三维模型参数,获取全面的船舶每条水线与角坐标,以此完成船舶三维模型设计;向虚拟现实软件Unity 3D中导入船舶三维模型,在该软件内设计场景对象,并设计场景漫游,完成船舶的多场景分析,同时利用基于粒子群与空间分解层次包围盒(FDH)的碰撞检测算法,实现船舶的碰撞检测。经实验验证:该方法能够精确提取船舶俯仰角、横滚角以及航向角参数,有效构建船舶三维模型,并实现模型内部场景漫游,且不同场景下的碰撞检测概率始终保持在92%以上。
Using virtual reality technology to simulate the state of ship three-dimensional model in different scenes can analyze whether the ship itself maintains safe operation in real time.Therefore,a research on ship three-dimensional modeling design based on virtual reality technology is proposed.The CATIA method is used to build the ship 3D model,and AutoCAD is introduced to extract the ship 3D model parameters to obtain the comprehensive ship waterline and angular coordinates,so as to complete the ship 3D model design;Import the ship 3D model into the virtual reality software unity 3D,design the scene object in the software,design the scene roaming,complete the multi scene analysis of the ship,and realize the collision detection of the ship by using the collision detection algorithm based on particle swann optimization and spatial decomposition hierarchical bounding box(FDH).The method can extract the ship's internal roll angle and pitch angle under different scenarios with an accuracy of more than 92%,and can always detect the ship's internal roll angle through the experiment.
作者
张丽
ZHANG Li(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China;Computer Science,Sichuan TOP IT Vocational Institute,Chengdu 611743,China)
出处
《舰船科学技术》
北大核心
2022年第9期40-43,56,共5页
Ship Science and Technology
作者简介
张丽(1981-),女,硕士,副教授,研究方向为计算机应用技术、虚拟现实及数字媒体。
