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Unformatted text preview: ing design. Three geometric state variables are defined to ensure a left-to-right taper in the subproblem approximation method. These additional state variables are not used in the first order method to demonstrate the robustness of the algorithm. Results Comparison Subproblem Approximation Method Target[1] ANSYS[2] Ratio (TVOL) Volume, in3 3.60 3.62 1.004 (DEFL) (Deflectiony)max, in 0.500 0.499 0.998 (STRS) Stressmax, psi 30000 29740 0.991 Target[1] ANSYS[3] Ratio (TVOL) Volume, in3 3.60 3.61 1.003 (DEFL) (Deflectiony)max, in 0.5 0.5 1.001 30000 29768 0.992 First Order Method (STRS) Stressmax, psi 1. Based on an integrated solution 2. Converged to within chosen tolerances after 11 iterations. 3. Converged to within chosen tolerances after 15 iterations. Figure 155.2 Subproblem Approximation Method ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–343 VM155 Figure 155.3 First Order Method 1–344 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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