基于Unity3D的疏浚船作业虚拟仿真系统  

Virtual Simulation System of Dredger Operation Based on Unity3D

作　　者：谢宇 何坤金 陈义仁[1] 王江坤 XIE Yu;HE Kun-jin;CHEN Yi-ren;WANG Jiang-kun(College of Internet of Things Engineering,Hohai University,Changzhou Jiangsu 213022,China;Engineering Research Center of Dredging Technology of Ministry of Education,Hohai University,Changzhou Jiangsu 213022,China)

机构地区：[1]河海大学物联网工程学院,江苏常州213022 [2]河海大学疏浚技术教育部工程研究中心,江苏常州213022

出　　处：《计算机仿真》2022年第7期426-432,共7页Computer Simulation

基　　金：中央高校基本科研业务费专项资金资助(B200204036);常州市科技支撑计划(社会发展)项目(CE20195029)。

摘　　要：针对传统疏浚船作业仿真的不足与水下地形复杂的问题,设计了疏浚船的三维仿真系统,全方位、多角度的模拟疏浚作业过程。首先,提出了水下地形的生成方法,通过薄板样条插值方法,补充数据点,生成高精度的高程图;其次,构建完整的虚拟场景,将人员、地形、船体等元素交互融合,实现一端多控的便捷操作;最后,模拟水下疏浚作业,建立水下地形与运动的铰刀头的动态约束关系,实现对水下地形挖掘的实时变形。以天狮号船体与北港地区地形数据验证,上述系统能够有效模拟疏浚作业流程,提前对疏浚工程进行规划与评估,降低疏浚过程的不可控因素,同时为疏浚船培训提供便利。Aiming at the shortcomings of traditional dredging vessel operation simulation and the complicated underwater terrain,a three-dimensional simulation system of dredging vessel was designed to simulate the dredging operation process in all directions and multiple angles.First,a method for generating underwater terrain is proposed that the data points are supplemented by thin-plate spline(TPS) to generate high-precision elevation map.Second,a complete virtual scene is constructed in which elements such as personnel,terrain,hull,are interactively integrated to achieve the convenient operation of multi control at one end.Finally,the underwater dredging operation is simulated,and the dynamic constraint relationship between the underwater terrain and the moving reamer head is established to realize the real-time deformation of the underwater terrain excavation.Verified by Tianshi hull and the topographic data of Beigang area,the results show that the system can effectively simulate the dredging operation process,plan and evaluate the dredging project in advance,reduce the uncontrollable factors of the dredging process,and provide convenience for the dredger training.

关 键 词：疏浚船 虚拟仿真 地形生成 铰刀切削 地形变形 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]