Research And Software Development Of Auto Modeling Design Based On CAD And CAE

With the development of China's economy and the automotive industry, Beautiful cars are becoming more and more popular. The car modeling is not only the artistic creation of designers, but also the combination of art and modem engineering technology.The parameterized model of car body is established based on CAD, which can be changed quickly and varied by setting the parameters, enhancing job effciency. And research the influence of fender curvature on the springback - The analysis system of automobile modeling parameters is developed, which provides a powerful software for further study. The contents are as follows :(1) The basic theory of NURBS, CAD software secondary development springback mechanism and simulation of sheet forming are studied, which good base for the study.(2) The modeling is established, which can change quickly, improve the efficiency of the pre design, and provide a large nujmber of simulation model data for the research.(3) The fender was simulated by the finite element software of sheet forming, get lots information. Through the learning of neural network, a large number of rebound data. Through the learning of these information, some conclusions are drawn, which can provide reference for designers..(4) A software of design and analysis of car is designed, which provides software for other people.