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Chapter 14. 設計最佳化 Design Optimization. Contents. 14.1 何謂設計最佳化 ? What is Design Optimization? 14.2 ANSYS 設計最佳化 Design Optimization with ANSYS 14.3 實例 : 兩端固定樑的形狀最佳化 Example: Shape Optimization of a Fixed-ends Beam 14.4 實例 : 三角平板之最佳設計 Example: Design of a Triangular Plate
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Chapter 14 設計最佳化 Design Optimization
Contents 14.1 何謂設計最佳化? What is Design Optimization? 14.2 ANSYS設計最佳化 Design Optimization with ANSYS 14.3 實例: 兩端固定樑的形狀最佳化 Example: Shape Optimization of a Fixed-ends Beam 14.4 實例: 三角平板之最佳設計 Example: Design of a Triangular Plate 14.5 其它最佳化工具 Other Optimization Tools
第14.1節 何謂設計最佳化? What is Design Optimization?
14.1.2 Optimization Variables • Design variables • State variables • Objective function
14.1.3 Design Space and Design Sets • Design space • Design set • Feasible design • Optimal design • Best design
第14.2節 ANSYS設計最佳化 Design Optimization with ANSYS
14.2.1 A Design Optimization Procedure Using ANSYS Organize ANSYS procedure into two files: • Optimization file—describes optimization variables, and trigger the optimization runs. • Analysis file—constructs, analyses, and post-processes the model.
14.2.4 ANSYS Optimization Algorithms Two built-in algorithms in ANSYS: • First order method • Subproblem approximation method (Zero order method)
第14.3節 實例: 兩端固定樑的形狀最佳化 Example: Shape Optimization of a Fixed-end Beam
F = 100,000 N p =15,000 N/m h b = 100 mm 6 m 14.3.1 Problem Description
C L H1 H2 H3 1.5 m 1.5 m 14.3.2 Modeling Consideration
第14.4節 實例: 三角平板之最佳設計 Example: Design of a Triangular Plate
T1 30o 30o Dimension: mm R = FIL 30o 40 30o INRAD 200 30o 30o 14.4.1 Problem Description
14.4.2 Modeling Consideration • 1/6 model is used, due to the symmetry of the geometry and loading.
14.5 Other Optimization Tools Provided by ANSYS • Single Iteration Design Tool • Random Design Tool • Gradient Tool • Sweep Tool • Factorial Tool
