Early Introduction of Robust Design Into the Engineering Curriculum
Normally, there is very little opportunity for first-year engineering students to practice robust design techniques given the relatively simple nature of their projects, and they are not exposed to any robust design activity and Design of Experiments (DOE) methodologies until their third year. How can junior engineering students gain a sense of the robustness of their designs? Will the resulting product still be acceptably functional if used in non-ideal environments? The purpose of this paper is to introduce a potential assignment to supplement this need at the first-year level. Introduced as a bonus assignment in Fall 2009, students were charged with the task of designing an aircraft wing by choosing parameter setting combinations that would provide the maximum Lift-to-Drag ratio, simulating results theoretically that would be obtained in a wind-tunnel experiment, while including random noise. All necessary facts and equations were given, leaving students with the task of running calculations and employing Taguchi methods to select an optimal set of parameters. While few students chose to undertake the assignment, those that did it found the application interesting and useful. Example results for this robust design assignment, including final parameter selections for the optimal wing design, are presented in this paper, along with factors where students have shown weaknesses.