Optimization - Expert Settings

Expert Settings

Using the expert settings, you can change the resolution and switch between the individual resolution levels to influence the result. These settings overwrite the selection of the Design Type (normal, filigree, massive), as they are only default settings for the ones described here.

When choosing a startSpace, these settings should be made to reduce the computational effort even more. The "coarser" resolution levels can thus be skipped and it can be started directly with a finer level (Level 1 or even Level 0). It is important that both level definitions are consistent.

You can change the following settings: fOptimizer_switchAddRemove, number of resolution levels, iterations of each resolution level and stressPercentGoal of each resolution level.

UpSampleConfig

fOptimizer_switchAddRemove=58

Starting with iteration 58, elements are either added or removed and only every second iteration is saved. This is important for the iterations near to the end of the optimization.

iteration

.level_3=10"

.level_2=10"

.level_1=20"

.level_0=30"

Specify how many iterations are calculated at which resolution level. Note that convergence should be achieved at each level.

Default settings normal: 20, 20, 20, 10

Default settings massive: 10, 10, 20, 30

Default settings filigree: 15, 40, 4, 4

fOptimizer_stressPercentGoal

.level_3=10

.level_2=25

.level_1=50

.level_0=100

The percentage at which the target stress is reached is set.

Default settings normal: 30, 40, 90, 100

Default settings massive: 10, 25, 50, 100

Default settings filigree: 60, 90, 95, 100

For an example usecase have a look at the tutorial Restart/Startspace Optimization - Bridge.