Scene Simulation Of The Full Face Tunnel Boring Machine Based On Vega And VC++

Virtual reality (abbreviated VR) is a Technology to simulate immersion and realism with the three-dimensional scene in the computer simulation of real environment. Through the input and output devices, experience of virtual reality environment in a variety of sensory. Virtual reality has the strong ability of human-computer interaction and realistic display of three-dimensional environment, interface development and application man-machine, thus changing the passive, rigid situation between the computer and human. Virtual reality technology in the military exercise planning,3D games, city building roaming and planning and so many areas of widely applied. With the development of computer hardware and software technology, from the PC machine, workstation to large parallel processors are all provides a powerful engine for VR, makes graphics, image processing the most important function of the VR system has been greatly improved, but also offers a more extensive study and application of space for Virtual reality technology. Visual simulation is the realization of virtual reality technology, visual simulation focused on the real-time interactivity, through the simulation of the virtual environment system, simulated operation to approximate real practical training results.Full Face Tunnel Boring Machine excavation for the tunnel project is a set of large high-tech engineering equipment, which has electrical, hydraulic, control and so to one. As the boring machine construction with a high degree of mechanization, construction speed, quality assurance, safe, wide range of adaptability, less influence the ground construction, conducive to environmental protection and other advantages, has been widely used in subway, highway, railway, gas, water, municipal, water tunnels and other large projects. With the construction of urban projects, China more than20cities planned metro project, making Full Face Tunnel Boring Machine applications is more extensive. However, due to its unique construction environment, we can not observe in the field of construction and concrete work. Therefore, we constructed by creating a model with rendering a realistic of virtual scenes environment, through the control of the program with three-dimensional display of hardware support, developed a good immersion and realistic visual simulation system to use construction process in a virtual display and virtual training.The main contents of this paper is the real-time visual simulation of boring machine. Being EPBφ6.28m earth pressure balance shield machine as the research object for the subject, in Pro/E three dimensional model will be virtual assumed for parent-child relationship demanded by the motion Relations, then get the file through the conversion be able to open by the Creator; using polygon modeling, vector modeling techniques to create three-dimensional model, get a realistic model through mapping technology; and made a in-depth study for the DOF motion node setting of complex motion; established geometric model base and virtual environment database which data format based on Openflight of Full Face Tunnel Boring Machine, and studying the model load related issues in Vega; with VC++as a development tool, based on the dialog framework which established by MFC, creating Full Face Tunnel Boring Machine desktop visual simulation have three-dimensional engine and human-computer interaction function based on Vega, run in the three-dimensional hardware, has good immersion and realism, achieved good stereo effect. And initial implementation of the virtual construction and virtual operator training.