Executing the Genetic Algorithm

 

After starting the Genetic Algorithm, the two punch files containing the candidate set TAM characteristic matrices are read in and the target modes are selected. Modes 1 through 10 are selected as target modes for each FEM configuration and the Total # Accels was set to 40. All other options were left at their default values and Figure 19 shows the main GA GUI after the initial solution is complete.
 

Figure 19. Main GA GUI upon completion
 

XML files were exported of the two FEM configurations after simulating 100 generations. The summary tables shown in Figure 20 and the Pseudo-Orthogonality plots in Figure 21 show that 40 accelerometers is sufficient to represent the 10 target modes of each FEM configuration.

If these results were not sufficient then the GA could be executed again by simply pushing the Solve button. The final accelerometer locations were exported using the Export à Export ASET DOF menu option to files truck_wload_GA.aset and truck_GA.aset. Thirty-six accelerometers are placed on the truck and trailer and 4 accelerometers were placed on the container.
 

TRUCK WITH CONTAINER

 

TRUCK WITHOUT CONTAINER

Figure 20. XML summary table of the Genetic Algorithm TAM for the two FEM configurations shows an excellent match for the target modes

 

TRUCK WITH CONTAINER

TRUCK WITHOUT CONTAINER

Figure 21. XML representation of the Pseudo-Orthogonality from the Genetic Algorithm TAM for the two FEM configurations showing excellent Pseudo-Orthogonality