1. Engine Analysis and Redesign: Nissan’s QR25DE MAE 477 Final Project Fall 2010 Norbert Ogiba

2. Engine Fundamentals Competitors Purpose for redesign? DESIGN MOTIVATION

3. Design Goals and Alternatives (1 point given for low score, 2 for average score, 3 points for a high score in a category)

4. Design Sketch Example

5. Baseline Results Under stock forces, rod sees maximum stress of 22.3 MPa.

6. Stock Rod, under 15 psi boost Max stress: 45 MPa, and deformation.

7. Redesigned Rod under 15 psi Max stress: 21.2 MPa.

8. Comparison of Crankshafts

9. Motion Plots: The critical factor of piston speed Piston speed was reduced by

10. Animations

11. Final Results

12. Dimension availability Complexity of assembly Animation of Final Product Problems

13. Sub Assemblies

14. Rotating Subassembly

15. Final Assembly

16. Webpage https://sites.google.com/site/norbertogibacadapplications/