Nc Tension Simulation System And Its Key Technologies

With the development of computer software and hardware technology, network and information technology, some new manufacturing concepts and theories arise on the foundation of flexible manufacturing technology and computer integrated manufacturing technology. One of these is VM (Virtual Manufacturing). As a key of VMT (Virtual Manufacturing Technology), the simulation of NC (Numerical Control) manufacturing has an important status in this field. Moreover, it also has great value in application.In my paper, at first I research the system architecture and key technology of virtual stretch bending environment. Solutions for physical device's geometric modeling, kinetic modeling, NC program interpretation and verification and tangent point calculation are worked out based on the analysis of characteristics of stretch bending. Then, 1 introduce the algorithm of collision detection based on searching all the triangles of object to the virtual stretch bending environment and make use of vertex pair contraction surface simplification using quadric error metrics in another field of LOD (Level of Detail) for the efficiency of dectection and real-time 3D rendering. At last, I also complete the task of designing strech bending process simulation software. The prototype system of 3D virtual stretch bending environment has been developed.