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Optimization Analysis Problem
This chapter contains an optimization problem. In an optimization of a static analysis, Structure finds the optimal values of the parameters in your model to achieve a specific design goal (for example, to minimize mass).
mvoo001: Five-Bar Configuration Problem
 Analysis Type: Static Model Type: 3D Reference: Imai, Kanji. Configuration Optimization of Trusses by the Multiplier Method. LA: University of California, UCLA-ENG-7842. Description: A five-bar truss has the following conditions for optimization: the cross-section area for bars AB, CD, BE, and CE are kept the same; bar BC has an independent cross-section area, and the load applied on point E is 20000 psi. Find the minimum weight of the truss with the maximum tensile stress in the model under 20000 psi.
Specifications
 Element Type: beam (5) Units: IPS Dimensions: length A-B, C-D: 240length B-C: 480length B-E, C-E: 339.41 Beam Properties: Area: 0.1IYY: 0Shear FY: 0CY: 1 J: 0IZZ: 0Shear FZ: 0CZ: 1 Material Properties: Mass Density: 0.1Cost Per Unit Mass: 0Young's Modulus: 1.0e7 Poisson's Ratio: 0Thermal Expansion: 0Conductivity: 0
 Constraints: Location Degrees of Freedom constraint1 all beamspoints A and D fixed in RotX, RotY, and RotZfixed in all DOF