Virtual Prototyping for Training in Engineering Design

This paper presents a development consisting of a virtual reality application used to move, view and manipulate mechanisms. These mechanisms can be assembled or disassembled and checked if work properly. A virtual environment can be used and the mechanism can be observed by different ways using a HMD or stereoscopic glasses. The main object of this work is the development of new methodologies for training in mechanical design adapting traditional subjects as Engineering Drawing to the new technologies of visualization and simulation raised in the last years. In order to use these mechanisms in Internet, the program let us obtain a file that can be view with an Internet explorer program. The goal is to develop modules of design engineering through Internet where the three-dimensional and interactive graphics are the most innovative aspect and attractiveness. One of the most important decisions in the development of the project was to select the proper technology of three-dimensional graphics. These graphics had to allow to the interactivity with the user as far as navigation (zoom, rotation and pan) and as far as detection of events so they had to be programmable. In addition characteristics as the small size of file and the possibility of streaming were important. About 800 3D models have been developed where the user can visualize the model from any point of view and size and many of them can interact with him, executing disassemblies or processes for example. Key-Words: WEB3D, Virtual Reality, computer aided learning, interactive graphics, Internet. Collaborative Design