Constrained behavior manipulation for interactive assembly in a virtual environment
Constrained behavior manipulation for interactive assembly in a virtual environment
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DOI：
10.1007/s00170-005-0382-5
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发表时间：
2007-03
期刊：
影响因子：
--
通讯作者：
Zhen-yu Liu;Jianrong Tan
中科院分区：
文献类型：
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作者：
Zhen-yu Liu;Jianrong Tan
基于虚拟现实的交互式装配为用户提供了与虚拟原型而非物理原型交互的机会，并以真实的方式验证产品的装配性能。此类评估可以在产品开发过程的早期阶段在任何物理原型制作之前进行。减少或消除装配性能验证所需的物理原型可以大大缩短产品开发周期并降低开发成本。虽然虚拟现实技术为用户提供了直观、身临其境的3D交互界面，但由于人类难以执行精确的定位任务，因此往往不准确。因此，有必要对装配操作实施有效的运动操纵，以便用户能够在虚拟装配系统中高效地进行精确定位。本文提出了一种约束行为管理方法，实现虚拟环境中交互式装配的装配关系识别、约束求解和约束运动。约束行为管理器（CBM）已被开发并应用于虚拟装配系统。测试用例证实，本文提出的约束行为操作不仅提高了装配关系识别的效率，而且有利于虚拟环境中的装配交互。
Interactive assembly based on virtual reality offers users an opportunity to interact with a virtual prototyping rather than a physical one and to validate assembly performance of products in a realistic way. Such evaluations could be available very early in the product development process ahead of any physical prototyping. The reduction or elimination of physical prototyping needed for assembly performance validation can substantially shorten the product development cycle and reduce development cost. Although virtual reality technology provides users an intuitive and immersive 3D interactive interface, it tends to be inaccurate because humans have difficulty in performing precise positioning tasks. Therefore, it is necessary to implement effective motion manipulation for assembly operations so that users can perform precise positioning efficiently in virtual assembly systems. This paper presents a constrained behavior management approach that realizes assembly relationship recognition, constraint solution and constrained motion for interactive assembly in a virtual environment. A constrained behavior manager (CBM) has been developed and applied in virtual assembly systems. Test cases confirm that constrained behavior manipulation proposed in this paper not only increases the efficiency of assembly relationship recognition, but also facilitates assembly interaction in a virtual environment.