Research On Intelligent Layout System Of The Auto Body

Layout is a key component in the stamping production. Different layout will greatly influence the utility of materials. In the stamping production, the cost of materials nearly accounts for 60℅ of the stamping cost. So improving materials utilization rate is the essential way to reduce the cost of stamping parts, and the utility of materials depends mainly on stamping parts layout.With the development of computer technology, some scholars at home and abroad have studied the problem of parts layout. And while doing researches on layout algorithm, they also developed corresponding layout soft wares. In algorithm, Few technology based on artificial intelligence ,Despite in many areas SA, GA have been successfully applied in sorts of optimization problems, and have solved lots of problems, but there is no mature optimal layout system that is established based on SA, GA, and machine learning theories.A new kind of algorithm, which combines CHNN and genetic algorithm, is proposed. The paper builds models for irregular parts, which are processed by using the surrounding rectangle methods and graphic composition. It discusses CHNN and its mapping to layout and optimizes the weight of CHNN by genetic algorithm, using AutoCAD as a develop studio. VB program language is adopted in programming of the core program and intelligent layout system is developed. With the input of layout parts graphics as well as layout parameter and through graphic pretreatment, the system can automatically calculates layout results. It will output intelligent layout graphs of parts, according to which an optimal layout plan about the maximal number of parts that can be stamped on a sheet. Finally, the overall optimality is accomplished. Sample analysis shows the results that the system not only has good man-machine interface and interactive feature, and also high speed and quality retention of solution.