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Preparing Students for Senior Design with a Rapid Design Challenge

Preparing Students for Senior Design with a Rapid Design Challenge. Joe Tranquillo Biomedical Engineering Bucknell University BME-IDEA 2009. The course was good, but…. Students not used to courses like design 1 st semester can be unsatisfying to students

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Preparing Students for Senior Design with a Rapid Design Challenge

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  1. Preparing Students for Senior Design with a Rapid Design Challenge Joe Tranquillo Biomedical Engineering Bucknell University BME-IDEA 2009

  2. The course was good, but… • Students not used to courses like design • 1st semester can be unsatisfying to students • All projects different – keep class unified • Need to balance planning vs. building • First exposure to entire formal step-by-step engineering design process • Some students hesitant to fabricate

  3. The Design Challenge (DC) Challenge: Design and build a liquid infusion device for use in a 3rd-world rural clinic that empties a 60 cc syringe in 10 minutes. Limitations:1. No AC power 4.$100 budget2. No intervention 5. No IP protection3. Restricted shopping 6. ~3 weeks . + Design Build Test Refine

  4. Step 1/5: Who are the users and what do they need?

  5. Step 2/5: What it should do and how well it should do it?

  6. Step 3/5: The best solution and how to get there

  7. If you build it,it will work… Build Prototypes!!

  8. Step 4/5: It’s done! But it doesn’t work! What now?

  9. Step 5/5: Evaluate the design process

  10. The DC Final Event The Contest1. Each team explains their solution and runs their system under supervision 3. Closest to ten minutes winner4. Closest to 6 cc/min winner5. Most creative solution winner6. Overall winning team7. Prizes awarded The Wrap-Up1. Congratulatory feedback 2. Transfer to actual design3. Build on positive feelings NEXT STEP: Form year-long design teams & GO!

  11. The 2008-2009 Teams and Their Systems J. Tranquillo and D. Cavanagh, “Preparing Students for Senior Design with a Rapid Design Challenge” Proceedings of ASEE 2009

  12. BME at Bucknell Mission: To provide a high quality, hands-on education to a select group of undergraduates Enrollment: 54 students in four-year program; 3 classes of alumni Faculty: 5.8 FTEs Degrees: BS in BME, minor in BME Facilities: Hybrid Instructional Facility, Biomedical Teaching/Project Lab, College Facilities

  13. BME Design at Bucknell • Two-semester sequence • 1st semester to identify problem and plan • 2nd semester to fabricate, test & deliver • Teams of 2-4 students matched by interest • Clinical Mentors from Geisinger Health System • Faculty adviser and course coordinator • Teams identify clinical problem, run meetings, manage budget, meet deadlines, etc….. They are in charge • First offering in 2006-2007

  14. The DC Sales Pitch On first day of class: • DC syllabus • IDEO video • Student-selected teams • Set 1st team meeting time • GO! -> 3 weeks to build, test, and delivera medical device. -> Follow 5 steps process

  15. Did the Design Challenge help? Faculty Observed Benefits • Students engaged on day one • Students designed twice in the year • DC acted as a common experience Faculty Observed Limitations • Takes time away from full design project – students not always see the value of DC • Not all students realize the transfer of skills from the DC to the design project.

  16. Did the Design Challenge help? Summary of Student Evaluations • Most students were able to identify weaknesses in their DC efforts and made suggestions on how to improve • Students found that a ‘simple’ project with clear goals was effective to experience design process • Students were eager to begin the actual design project • When asked about the value of the DC, the average score of 31 students was 3.9/5.0.

  17. Broader Application Ideas Alternative Implementations • Introductory engineering courses • High school courses • Service learning courses • Courses for non-engineers Alternative Formats • Vary the objective of the DC • Vary the limitations • Focus on specific aspects of design process • Many more…..

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