Senior_Capstone_experience.pdf

Transcript

1. Capstone Experience Vibram Traction Tester 2020-2021 Colleen Twomey
2. Presentation Overview Stage 1: Research and Restoration Stage 3: Implementation 01 03 Stage 2: Design and Development 02
3. Stage 1 Research and Restoration
4. Background & Benchmarking ➔ Vibram Shoes ➔ Goal: Improve Vibram’s original traction tester machine to achieve precise and accurate results, while ensuring a user friendly experience ➔ Mechanical Testing ◆ Must push two surfaces together and have one move relative to the other. ◆ create mechanisms to induce normal and horizontal forces. Figure 2: Tennis Warehouse Machine Figure 1: general traction tester model
5. Initial Machine Figure 3: Received Rig from Vibram. Figure 4: Many of the Missing Components Sourced From Previous 2020 Team Images.
6. Initial Machine cont. Figure 7: Electromechanical System. Figure 5: Load Cell. Figure 6: Belt Mechanism of Machine Created in CREO.
7. A Working Machine Figure 8: prototype 1 Figure 9: prototype 2 Plot 1: initial data collection
8. Stage 2 Design and Development
9. Problem Identification ➔ Missing Components ➔ External Forces on Load Cell ➔ Gantry Range of Motion ➔ Vertical/Normal Force Control ➔ Data Visualization and Comparison
10. ➔ Restore machine ➔ Remove extraneous forces ➔ Apply a normal force during traction measurement ➔ Hold shoe in place ➔ Attach shoe to load cell ➔ Effective data output ➔ ➔ Design Approach Figure 10: sample sketches
11. Design Decisions ➔ Removed load from in series placement ➔ Spring loaded shoe press ➔ Slotted shoe holder ➔ Wire and clevis bracket for easy unloading Figure 11: Gantry assembly
12. Stage 3 Implementation
13. Final CAD Design Figure 12: Final overall machine assembly Figure 13: sub shoe assembly
14. Final Product Figure 14 (a): final machine Plot 2: Final data collection Figure 14 (b): final machine
15. Final Video
16. Thank You Questions?
17. Appendix Slides
18. Gantry Assembly
19. BOM
20. Sample Pugh Chart