ME-383 Lab 1: apply failure analysis to a real product

Lab 1

1. ME 383 Lab 1 Zachariah Connor Amin Firouzi Cole Jetton 10/03/2023

2. Today Introduction to the lab Requirements for first lab Review of concepts Selection and confirmation of product

3. ME 383 Lab Breakdown Selecting a product for a quarter long project: Four Labs, presentations, and reports Final Presentation Final Report Lab overview one week, presentations and report the next

4. ME 383 Lab Project Apply failure analysis to a real product Requirements analysis <- You are here Load analysis Stress analysis Failure analysis Final report

5. Acquire the physical product Designate at least one team member to measure it Constructed mostly of metal Ideally most of the parts are metal Product must have at least 5 parts Try to have the 5 main components be different types: springs, beams, bearings, etc. ME 383 Lab Project

6. ME 383 Lab Teams Lab projects are done in teams Each focuses on a different component The five components requirement means overlap will occur Peer evaluation at end of course If you’re having issues, please reach out ASAP

7. Considerations for Product Choose a product that can be analyzed within the context of this course Look at Shigley’s Ideally has some machine components Bearings Gears Springs Bolts

8. Previous ME 383 Projects Power tools (impact gun, chain saw, drill press, recip saw) Recreational gear (rock climbing, sailboats) Kitchen (apple peeler, pasta maker) Winches (4x4, boat) Lawn and garden (gas lawn mower, hedge trimmer) All images Amazon

9. Previous ME 383 Projects Bicycles (road, mountain, BMX) Scooters (double check amount of unique components) Jacks and cable pullers (floor, trailer, hi-lift, transmission) Automotive (engine, transmission, differential, suspension) Marine and powersports (outboard motor, MC engine) All images Amazon or Home Depot

10. Not acceptable for ME 383 Toys (unless mostly metal) Pliers, locking wrenches and impact wrenches (talk to TA) Kitchen and power tools with plastic gears or direct drive Scanners and printers [including 3D printers] (lack of good forces) Products without 5 good points of analysis (if in doubt, ask) All images Amazon

11. Lab and Presentation Guidelines

12. ME 383 Lab 1 Components Cover page Introduction State what you’ve done in this report Results Include your methodology here Discussion

13. Report Expectations No specific format needed ASME or AIAA encourage but not required Keep it professional looking Keep formatting consistent throughout the report Same style tables, images, font, etc.

14. ME 383 Lab 1 Results Section Customer and Engineering Requirements At least 10 of each Correlate through HOQ Failure Modes and Effects Analysis Focus on the components that you’d be analyzing

15. Presentation Guidelines Practice for 7 minutes Include: HOQ, FMEA Discuss each part’s FMEA This will explain the ‘why’ of selecting the part We’ll end with 5-ish minutes of feedback

16. Subject Review

17. Review: HOQ Only need: Customer Requirements Stated as a “need” Engineering Requirements Quantifiable Consistent Units Relationships Scale Numbers or symbols are acceptable, just use a key Source: QFDOnline.com

18. Review: FMEA Component & Function Failure Mode Failure Effect Severity Potential Cause Occurrence Detection Mode Detection RPN X(Z) does Y X stops What happened? Y stops Why do we care? 1: Not bad 10: Very bad Z Stops How did it happen? 1: Infrequent 10: Frequent Watch Z 1: Easy to detect 10: Hard to detect FMEA (Failure Mode and Effects Analysis) Quick Guide (isixsigma.com) RPN = Severity x Occurrence x Detection

19. Questions?

20. Lab Group Time Brainstorm products Have your product decided Establish meeting times Exchange information

21. Lab Group Time Get to know each other, ask silly questions! “If you were a tree, what tree would you be?” “Why did you choose mechanical engineering” Bond over your mutual feelings on zoom classes