| The widely application of finite element analysis and structural optimization can shorten the period of production development efficiently, reduce the cost of production manufacture and improve the quality and reliability of the product. The structural of frame for JF21-160 punch is investigated in this thesis. In view of the properties of the materials and static and dynamics features, taking finite element analysis software ANSYS as the analysis tool, the analysis and optimization of the structural frame are researched. It also provides basis and direction for the design and trial of the product.Finite element models primarily based on the shell element and finite element technology are set up with ANSYS Parametric Design Language, and the modeling is simplified necessarily for calculating more convenience. From the static analysis of the frame, the stress and displacement that vary with position are gained and the basis is provided for the next product design and trial.Modal analysis of the punch are studied next focuses on effect brought by vary frequency on frame modal. On condition that the frame meets certain intension and toughness demands, by optimizing geometry size and shell thickness to reach the most minimum material for use. From the results of static analysis and the whole frame structure, by selecting parts of geometry size and the shell thickness as the design variables, in terms of meeting certain intension and toughness demands, the frame volume is selected as objective variable, and by adopting zero rank approach, the structural optimization is developed to reduce the weight.With the finite element analysis, the results have a great significance to improve the design quality and benefit. So it has practical application value. |