FEM Pre-Processing Technology And System Integration Study By AutoCAD

The structure analysis procedure usually consists of fore processing, structure analysis and after processing. In the three part, The structure analysis is foremost. It accomplish a series of calculate process, namely the realization of arithmetic. The function of after processing is use intuitionistic, comprehensible image preserving and outputting result. It is prone to realize by the plot class of VC. The fore processing is the most difficult in the three part. The perfect fore processing system adopt alternating graphics mode to build structure model and automatism make necessaries data. But specialism develop such graphics platform is very difficult and diseconomy, The support platform of this software is AutoCAD2000 that is known well by a great many of engineers and technicians, the development tool is ObjectARX2000 that is the best advanced and the programming language is Visual C++6.0 that is object-oriented. The fore processing system owns plenty dialogs. The man-machine interaction is friendly and the function of graphic edit is powerful, It can accomplish the work of mostly data input and automatically generate the data file in the form of which the calculating program requires and directly transfered by calculating program. This paper presents the idea that adopting class-integration mechanism to store the mass of data. It can easy inosculate data and calculating. On the other hand, adopting extended data mechanism to store the structure material data. In this way, the redundancy of data can be reduced and the data access rates can be improved.This software is based on modeless dialog. Using the software to realize the result of study in this paper. The result of study in this paper may be used for reference in development of structural CAD software.