Multi-objective Optimization – Battery Tray (from India)

Areas covered:

  • Construction of FE Models for static and normal-modes analyses.
  • Creation of a Template for Study-construction.
  • Design Of Experiment.
  • Trade-Off Study.


Description of the Problem: A design for the tray to hold the battery of an automobile has been proposed. The basis for the model is a study of earlier designs. The designer’s have another query too: can they reduce the maximum deformation as much as possible, while raising the minimum frequency as much as possible? In other words, both the responses – maximum-deformation and base-frequency – are to be treated as objectives. One should be minimized while the other should be maximized. We use two different finite element models – one for static analysis, under the dead-weight of the batteries and the other for the normal-modes calculation. A numerical experiment is constructed to sample the design space, and an approximation built from the results of the DOE. A trade-off study is then used to choose the optimal combination of the design variables for the two objectives.

The Solution-Summary can be viewed on any computer that has an AVI or VLC  player (e.g. VLC media player 2.0.3) installed.

Right-click on each of the links below, choose “Save As” and save the files to a folder on your computer. Then use a “zip” application to extract the contents to your folder
Post Processing
Nominal Run
Meshing Model 2
Create Template
Meshing Model 1

After you extract the files, open the HTML file titled HS_BatteryTrayMOO.html and use the menus to access the instructions in sequence.