Results

In the results check the following:
  1. The latest design provides the best results. Verify whether the result is feasible or not. In the *.out file (Neon-b_pillar.out) this data is at end of each iteration.

    FEASIBLE DESIGN (ALL CONSTRAINTS SATISFIED) - indicates that the design is good.

    INFEASIBLE DESIGN (AT LEAST ONE CONSTRAINT VIOLATED). - indicates that the design variable definition needs to be checked/improved.

    This information can also be found in the output file hwsolver.mesg.

  2. In the *.out file (Neon-b_pillar.out), check/verify the optimization definition. Objective Function: Minimize Combined Mass, Run Type: Sizing Optimization and so on.
  3. By running the Optimization in Radioss, an equivalent OptiStruct model will also be automatically created and named *.fem (Neon-b_pillar.fem).
Check the results in the *.eslout (Neon-b_pillar.eslout), in the *h3d file, or in each ANIM, T01 file. The *.eslout file contains the value of optimized objective in each iterations.
Figure 1. Optimized Results in Each Iterations in *eslout File

ex_51_selout_file

In the original model, the mass of the two parts is 3.0011e-3[Ton] and the optimized mass for these two parts is 2.4158e-3[Ton]. The mass is reduced by approximately 19.5%.

The thickness of part #2000327 is 1.328mm and the optimized thickness is 0.5539mm. The thickness is reduced.

The thickness of part #2000329 is 0.7060mm and the optimized thickness is 0.8933mm. The thickness in this model increased in order to get better performance of these two parts (in response 1, ATTB =1 (for COMB) is defined).
Figure 2. Optimized Results of Shell Thickness of Two Reinforcement Parts

ex_51_2000329
Figure 3. Optimized Results of Total Mass of Two Reinforcement Parts

ex_51_mass_results

In the last iteration, the mass was reduced to 2.4158e-3[Ton]. This new design still meets the constraint (< 19.7[mm]), defined in /DCONSTR.

In node 2021524, the max. y-displacement:

19.57[mm] (last iteration) < 19.7 [mm] (in constraint). Meets the constraint.
Figure 4. y-displacement on Node 2021524 in Original Model and Optimized Model

ex_51_202154