3d design of gravity dam based on virtual reality cad dynamic interactive system

The virtual reality technology is applied to the dynamic graphic simulation of gravity dam construction in the CAD dynamic interactive system, and the efficient graphics rendering engine is adopted to describe the complex construction process with realistic THREE-DIMENSIONAL animation, showing the virtual construction scene with realistic sense and real-time interaction. It provides a quick way to fully master the complex CAD dynamic interaction system gravity dam construction process and greatly improves the modern level of construction organization and design of gravity dam with CAD dynamic interaction system. A three-dimensional design system of gravity dam which can dynamically interact with CAD is developed by means of limit state design method. The system realizes the three-dimensional parametric modeling of gravity dam through the secondary development of auto-CAD, and adopts the modeling method of two-dimensional graphics to restore the three-dimensional model, so that any type of dam can be modeled quickly and accurately. The structure calculation of the three-dimensional model is carried out, and the design and calculation are closely combined. Through dynamic interaction, the calculation of a large number of complex data is simplified, so as to achieve the purpose of accurate and fast section design. It has been proved by practice that the system greatly improves the efficiency of section design and has strong practicability, which is of great significance to the scheme comparison and selection in the feasibility stage. © 2022 CAD Solutions, LLC.