虚拟维修拆卸过程规划与仿真

发布时间：2018-04-15 23:19

本文选题：虚拟维修 + 场景构建　；参考：《华中科技大学》2011年硕士论文

【摘要】：采用虚拟现实技术可以提升维修训练的水平,解决传统维修培训手段落后的情况。论文通过对虚拟维修拆卸过程规划与仿真系统的关键技术的研究,构建了虚拟维修拆卸过程规划与仿真的原型系统,为虚拟维修训练和仿真提供辅助平台。针对虚拟维修场景的构建问题,给出了虚拟维修场景开发的两种策略,针对CAD系统与VR现实系统的不完全兼容问题,研究了模型的转换技术和模型优化技术。在分析国内外学者对拆卸序列规划的研究上,研究了基于零件约束关系的Petri网拆卸序列规划,对模型特性进行了分析和验证,用获得的拆卸序列建立拆卸序列数据链表,存储零件的信息。在拆卸序列规划的基础上,研究了在EON环境下的拆卸路径规划问题,为了保证拆卸过程的有效性,实时进行碰撞检测,记录拆卸路径关键点,将路径关键点的信息赋给拆卸序列数据链表,为拆卸过程的仿真提供支持,研究了虚拟维修系统的场景和对象的交互控制问题,设计了TPO视点变化函数,根据维修对象的拆卸行为建立视点变化模型,设计了拆卸对象六自由度运动交互控制方法。最后,对上述各种技术研究之后,利用虚拟现实开发平台EON Studio5.0和VC++6.0高级编程语言及Script脚本在Windows XP系统上对原型系统进行了初步开发,这个原型系统可以完成虚拟维修拆卸的典型技术环节,像模型的加载,拆卸路径规划,拆卸过程仿真等。
[Abstract]:The use of virtual reality technology can improve the level of maintenance training, and solve the situation that traditional maintenance training methods lag behind.Based on the research of the key technology of virtual maintenance disassembly process planning and simulation system, a prototype system of virtual maintenance disassembly process planning and simulation is constructed, which provides an auxiliary platform for virtual maintenance training and simulation.Aiming at the construction of virtual maintenance scene, this paper gives two strategies for developing virtual maintenance scene. Aiming at the incompatibility between CAD system and VR reality system, the model conversion technology and model optimization technology are studied.On the basis of analyzing the research of disassembly sequence planning by domestic and foreign scholars, the Petri net disassembly sequence planning based on part constraint relation is studied, and the characteristic of the model is analyzed and verified. The data chain list of disassembly sequence is established with the obtained disassembly sequence.Store part information.On the basis of disassembly sequence planning, the problem of disassembly path planning in EON environment is studied. In order to ensure the validity of disassembly process, collision detection is carried out in real time, and the key points of disassembly path are recorded.The information of the key points of the path is assigned to the disassembly sequence data link list, which provides the support for the simulation of the disassembly process. The interactive control of the scene and the objects in the virtual maintenance system is studied, and the TPO viewpoint change function is designed.According to the disassembly behavior of the maintenance object, the view change model is established, and the interactive control method of six degrees of freedom motion of the disassembly object is designed.Finally, after studying the above technologies, the prototype system is developed on the Windows XP system using the virtual reality development platform EON Studio5.0, VC 6.0 high-level programming language and Script script.This prototype system can complete the typical technical links of virtual maintenance and disassembly, such as loading model, disassembly path planning, disassembly process simulation and so on.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH17;TP391.9

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