CAD/CAE Study On Jointing Structural Built-up Hydraulic Press Framework

On the basis of the knowledge and experience of the experts in the field of hydraulic press design, this paper developed Hydraulic Press Framework CAD Software Package. This software uses PC as hardware environment, and AutoCAD R14 as software platform ,supported by Expert System. And this software is built on the methods of advance hydraulic press designing theory, directed by theory of modern software engineering and OOP methods.Hydraulic Press Framework CAD Software Package includes Expert System of hydraulic press framework design > structural optimization module and ObjectARX application module of parametric plot drawing. Among them the Expert System has more knowledge and is more powerful and more interface-friendly than YYJES 1.0. The structural optimization module takes the measure of discrete optimization commonly used in engineering, converts three-dimensional complex structure discrete optimization problem into liner programming problem and uses ANSYS as the method of structural FEM analysis, and simplicial method to solve the problem. Feasibility adjust is carried on in the mixed space, then uses grads to adjust the continuous solution to discrete solution. It is proved to be an effective method to solve large-scale plate structure optimization problem. The parametric plot drawing is programmed under VC++6.0 and ObjectARX, uses MFC to develop the Windows-style interface and includes the database management technology. On this part, after users input the main designing parameters, system will use the Expert System and Optimization module to finish the design work and then give out the optimized result in engineering plot drawing style, includes the main frame, most of the part drawings and assembly drawings, as well as the price report. This process greatly decreases the designing circle of Hydraulic press.