特种设备的三维可视化仿真技术研究

发布时间：2018-02-27 04:31

本文关键词： 特种设备三维可视化行为建模逻辑控制 EON Studio　出处：《广东工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着社会的不断发展和人民生活水平的日益提高,特种设备在人们日常生活中的使用越来越多,发挥的作用也日益明显。但是由于特种设备是具有潜在危险性的设备,对它们的安装、维护、使用和检验稍有不当,就会引发事故,并造成严重后果。三维可视化技术的出现,为应对特种设备事故提供了新的思路。为此,论文研究了特种设备的三维可视化仿真技术。通过逼真的特种设备三维可视化仿真系统,能够在虚拟的环境中模拟特种设备事故的应急演练,并且能够将真实感较强的特种设备结构模型零距离地展现在人们眼前,不仅安全可靠,而且生动形象。同时系统还可以应用于特种设备作业人员的培训,特种设备企业的产品展示,有较广阔的应用前景。论文的具体研究工作如下： (1)利用SolidWorks构建真实感较强,同时满足一定实时绘制速度要求的电梯、自动扶梯、桥式起重机、锅炉三维模型。并在SolidWorks环境下划分模型的装配层次结构,确定模型的装配基准和约束关系,以确保装配层次关系的清晰明了。研究EON Studio环境下模型的装配关系,并根据模型的数据结构,提出层次坐标系的概念和模型装配关系的调整方法。同时对模型进行优化处理,使资源文件得到充分利用,并提高图形的实时绘制速度。 (2)对电梯、自动扶梯、桥式起重机这三种特种设备的零部件进行行为建模,根据各个部件的运行原理,来规划其三维可视化运动仿真。其中,对特种设备中柔性体的行为建模和仿真实现将直接影响系统运行的真实感。因此,针对常见的柔性体,主要包括钢丝绳、弹簧和链条等,分别采用基于模型分割的方法、关键帧动画或模型缩放的方案和基于实时运动轨迹方程的方法,来对这些柔性体的运动进行仿真。 (3)研究三维可视化仿真中的逻辑控制技术。为了合理地处理仿真中各个事件及状态之间的关系,对EON Studio中的逻辑控制原理进行了分析。针对电梯应急演练仿真和桥式起重机虚拟控制面板操作仿真这两个案例,设计仿真过程中各步骤和操作之间的逻辑关系,并利用节点-路由机制和脚本-路由机制这两种逻辑控制原理,实现仿真过程中的逻辑控制。 (4)利用VC++6.0软件平台,采用EONX控件、WebBrowser控件和ADO数据库访问技术,设计和开发特种设备的三维可视化仿真软件系统。通过EON Studio与VC++6.0之间的通信,实现模型显隐状态控制、模型透明度调节、交互操作、快速视角切换等功能。同时系统集成了包括应急演练、结构展示、知识学习和多媒体库等多个功能模块。
[Abstract]:With the development of society and the improvement of people's living standard, special equipment is used more and more in people's daily life, and the function is more and more obvious. Any improper installation, maintenance, use and inspection of them will lead to accidents and serious consequences. The emergence of 3D visualization technology provides a new way to deal with accidents of special equipment. The 3D visualization simulation technology of special equipment is studied in this paper. Through the lifelike 3D visualization simulation system of special equipment, it can simulate the emergency drill of special equipment accident in virtual environment. And it can show the structure model of special equipment with strong sense of reality in people's eyes from zero distance. It is not only safe and reliable, but also vivid. At the same time, the system can also be applied to the training of special equipment operators. The product display of special equipment enterprises has a broad application prospect. The specific research work of this paper is as follows:. 1) using SolidWorks to construct 3D models of elevators, escalators, bridge cranes and boilers, which have a strong sense of reality and meet the requirements of real time rendering speed. The assembly hierarchy of the models is divided under the SolidWorks environment. The assembly datum and constraint relation of the model are determined to ensure that the assembly hierarchy relation is clear and clear. The assembly relation of the model under EON Studio environment is studied, and according to the data structure of the model, This paper presents the concept of hierarchical coordinate system and the adjustment method of model assembly relationship, and optimizes the model so as to make full use of the resource file and improve the real-time drawing speed of graphics. 2) to model the behavior of the parts of elevator, escalator and bridge crane, and to plan the 3D visual motion simulation according to the operation principle of each part. The modeling and simulation of the behavior of the flexible body in special equipment will directly affect the reality of the system running. Therefore, aiming at the common flexible body, mainly including wire rope, spring and chain, the method based on model segmentation is adopted, respectively. The scheme of key frame animation or model scaling and the method based on real-time motion trajectory equation are used to simulate the motion of these flexible bodies. In order to deal with the relationship between the events and states in the simulation, the logic control technology in 3D visual simulation is studied. The logic control principle in EON Studio is analyzed, and the logical relationship between the steps and the operation in the simulation process is designed for the two cases of elevator emergency drill simulation and bridge crane virtual control panel operation simulation. The two logic control principles, Node-routing mechanism and script-routing mechanism, are used to realize the logic control in the simulation process. 4) using VC 6.0 software platform, using EONX control EONX browser control and ADO database access technology, designing and developing 3D visual simulation software system of special equipment. Through the communication between EON Studio and VC 6.0, the model is controlled by hidden state. At the same time, the system integrates several functional modules, such as emergency drill, structure display, knowledge learning and multimedia library.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP391.41;TH69

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