• | Frequency Response Analysis Based Mode Identification for Normal Mode Optimization: The mode corresponding to the highest modal participation in Frequency Response Analysis will be used as response for normal mode optimization. |
• | Section force for optimization (RESFORCE) for large size model: The enhancement is done on sensitivity such that it can now handle a large size optimization model such as topology optimization. |
• | Lagrange Multiplier output in Excel spread sheet: This output will be used to estimate the objective function corresponding to the modified constraint bound. |
• | Mass penalization for topology is removed for ACCELi: Mass is not penalized anymore such that the force due to ACCELi by a given volume fraction will be correct. |
• | Seam Weld Fatigue and Optimization: Seam weld fatigue analysis and optimization to model seam welded components. Fillet welded joints and Overlap joints are supported. The Volvo method is used to calculate the hot spot stress from nodal forces on weld lines. |
• | Spot Weld Fatigue and Optimization: Spot weld fatigue analysis and optimization to model spot welded components. CWELD, CBEAM/CBAR, CHEXA+RBE3 are available to model spot welds using Rupp’s method. The weld element diameter can be a design variable for optimization. |
• | Enhanced Performance for Frequency Response Optimization: The DOPTPRM, APPROX parameter can be used with options HIGH, MEDIUM, or LOW to determine the quality of approximation. Lower quality approximation results in lower memory and computational requirements. |