1 / 18

1970 Lotus Europa Front Suspension Redesign

1970 Lotus Europa Front Suspension Redesign. ME 462 Capstone Design Spring 2007 Sponsor: Bishop Steering Technology Kel Tiedman, Jason Wou. Team Members. Tom Filipucci Frank Faulkenberg. Brian Schludecker David Giles. May 3, 2007. Project Background.

montana-serrano
Download Presentation

1970 Lotus Europa Front Suspension Redesign

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1970 Lotus Europa Front Suspension Redesign ME 462 Capstone Design Spring 2007 Sponsor: Bishop Steering Technology Kel Tiedman, Jason Wou Team Members Tom Filipucci Frank Faulkenberg Brian Schludecker David Giles May 3, 2007

  2. Project Background • 1970 Lotus Europa • 1470cc, 4-cylinder engine producing 78 hp • 120 mph top speed • 13-inch wheels • 2-piece control arms • Stamped & welded • Bolt-on ball joints • Coil-over shock & spring arrangement

  3. Customer Requirements • Maintain suspension geometry • Provide stable 200 mph ride • Maintain 5 inch ride height • Utilize 15 inch Audi wheels • Utilize current frame mounting points • Maintain wheel-to-wheel dimension • Attempt to utilize stock shock and spring size • Minimal bodywork modifications

  4. Engineering Targets

  5. Final Design

  6. Final Design • Upper Arm = 5.60 in • Lower Arm = 11.03 in • Scrub = 10 mm • Steering Axis = 16.5º • Rotor Clearance = 0.69 in

  7. Design Animation

  8. Design Animation

  9. Design Evaluation • Suspension Analysis • Four-bar Mechanism

  10. Design Evaluation • “Fourbar” Program – Norton • Evaluate each control arm length iteration • Rough wheel motion • “Four-bar Mechanism” - Matlab • Quantitative wheel motion • ProEngineer Mechanism output to Excel • “Camber Curve” - Matlab • Camber curve comparison

  11. Design Evaluation • Iteration Method • 2 Iteration Sets • First Set – 11 possibilities • Manipulated Variables • Scrub radius • Steering axis • Second Set – 6 possibilities • Same Variables • Smaller scrub radii • Larger steering axes

  12. Design Evaluation • Case 5: • Steering Axis – 16.5° • Scrub radius – 10.0 mm • Upper arm – 5.60 in • Lower arm – 11.03 in • Case 1: • Steering Axis – 16.0° • Scrub radius – 11.0 mm • Upper arm – 5.70 in • Lower arm – 11.04 in

  13. Design Evaluation

  14. Design Evaluation

  15. FEA Results

  16. Final Evaluation

  17. Conclusion & Recommendations • Conclusion • Kinematic motion requirements met • Verified some physical packaging requirements • Recommendations • Further finalization of arm shapes • In-depth finite element analysis • Close examination of control arms and knuckle attachment • One team for knuckle/brake and suspension design

  18. Questions?

More Related