The Virtual Prototype Graphical View Of The Bus Simulation

With the development of simulation-technology and virtual reality, virtual prototype based on system simulation, flight dynamics, electronic technique, autocontrol theory and CAD/CAM has been more and more widely applied to the military rehearsal and the design and manufactural process of major weapon system. By using virtual prototype we can decrease cost, compress the period of the study and design of missile weapon system and greatly improve the efficiency of the weapon's development. One focus of virtual prototype technology is the fidelity. Obviously, The higher the fidelity of virtual model, the high of the fidelity of simulation.Aimmed to extend the function of initial Virtual Prototype with Modeling (VPM) for dynamics, this thesis improved the fidelity of prototype and added the simulated BUS and visualization funtion for VPM.Firstly, the modeling theory and method of VPM for dynamics are researched. The thoughts of integrated modeling and Oriented-Object method are absorbed in building the geometric model of visualization function.And then, the application of visualization and simulation technologies is researched, and the method of ultilizing OpenGL to read graphic files is discussed. The scheme to develop visualization environment is presented.Subsequently, the function and characteristics of physical BUS are researched, and the design principle and implementation method of simulated BUS are discribed.Finally, the framework of visualization environment and the using of simulated BUS are introduced. With an example, the process of building geometric model is depicted.The thesis's work is significant to simulation work of weapon system. It can improve the fidelity of simulation, which make users more convenient to analyze the whole simulation process. So users need not spend much time on analyzing data and can focus more on building the mathematical models of systems for simulating. Also, implementation of simulated BUS make the users' simulation model closer to the physical model, and improve the fidelity of prototype.