| The technology of Virtual Prototyping has been come into being with the development of Computer Science and fierce market competition at home and abroad. Prototyping is a technology of design and analysis based on the digital model of product. This thesis, supported by the National High-Tech, China (No. 2004AA411010) and the National Key Science and Technology program (No. 2004BA201A85), aims at the implementation of the module of dynamic simulation result visualization of mechanical system prototyping, based on the theory of multibody dynamic and computer graphics. This module, composed of simulation animation and plot show, facilitates the results analysis for engineers.First, base on the graphics theory, tree type topological structure and none-tree type mechanical systems are analyzed. Then applied object-orientated thoughts, the model elements of mechanical system are classified and abstracted. The architecture of mechanical system elements classes is implemented. After research on the inter-relationship between model elements, the simulation model is organized. Thirdly the results are obtained by solving the simulation model. Aimed at the application of results show, the results data management module is designed and implemented, which is in charge of the physical and logical organization of results data in memory.The animation simulation and visual numerical treatment of simulation results are conducted based on the model organization and results management. Combined with computer graphics, computer animation and double buffering technology, etc, the animation data is generated by transforming the model coordinates and view. The simulation animation works in mode of key-frame movie. Observing animation is controlled by adjusting the animation camera. The display and treatment of model parameter change are conducted by the model of result data visualization treatment.Finally, based on research above, and by using VC++7.0 developing tool, a simulation results visualization module is developed. The architecture and function of the model are briefly introduced. A full vehicle dynamic simulation result visualization is applied on this module. The results show that the research in this thesis is valid and feasible. |
