| Description | Type | Default |
|---|---|---|
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Topology design optimization boundary threshold used to export a Nastran Bulk Data file of the final optimized design. Elements with densities below this value will not be exported along with their associated grid points. Additive manufacturing constraint method for topology design optimization. There are three options: 1 - The constraint is strictly imposed using max and min functions. The sensitivity is not smooth. The optimum design tends not to produce overhang supporting structures. 2 - The constraint is approximately imposed by an exponential function. The approximation approaches the true max and min functions with a large TOPTMAXALPHA. 3 - The constraint is approximately imposed by a projection method. The optimum design tends to produce more overhang structures. |
1 ≤ Integer ≤ 3 |
1 |