With the Advanced User Settings the optimisation parameters can be influenced even further than the options Strut Density and Shape Quality. Furthermore, a few unsupported options are available using the Advanced User Settings like Restart, usage of a Startspace, thickness constraints or Casting design rules.
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The Advanced User Settings can be added to a Scenario by right clicking on this and selecting the option as shown in the picture below.
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By default the first 10 eigenmodes are considered to an upper frequency limit of 3 times the frequency target. This can be modified with the following commands:
event.Event_2.frequencyMax=4500 event.Event_2.frequencyCount=10 |
If the Frequency Constraint is higher than the first calculated Eigenfrequency of the whole Design Space in the first Iteration, this can lead to the case that no material will be reduced. This can be resolved by reducing the Frequency Constraint or by entering the following command to the Advanced User Settings:
schedule.iterations.~.operator.optloop_loop_analysis_Event-2_extractLocalFailures.useMetricGoalFactor=1 |
It has been found that comparable heavy point masses can cause that the optimisation does not achieve the Frequency Constraint. To address this the impact value can be set up to a value greater than 1. This can be done with the following Advanced User Settings command:
event.Event_2.impact=1.5 |
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Event_2 has to be replaced with the name of the frequency event. |
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