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BENCHMARKING

BENCHMARKING. Dave Meier Emina Maric Jonathan Hilton. http://stu.cbu.edu/Clubs/mbsquad/MB2005/MB2005.htm. Agenda. CBU Alpha 6. Schedule Budget Benchmarking Frame Differential Brakes Steering Suspension CFP Conclusion. Schedule Update. October Week 1 Solid Modeling

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BENCHMARKING

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  1. BENCHMARKING Dave Meier Emina Maric Jonathan Hilton

  2. http://stu.cbu.edu/Clubs/mbsquad/MB2005/MB2005.htm Agenda CBU Alpha 6 • Schedule • Budget • Benchmarking • Frame • Differential • Brakes • Steering • Suspension • CFP • Conclusion

  3. Schedule Update • October • Week 1 • Solid Modeling • Material Selection • Week 2 • Product Costs • Solid Modeling • Week 3 • Manufacturing Drawings • Week 4 • Order Parts • Order Materials

  4. Budget • Estimated expenses: Material $4,000 Travel $4,000 • Funding received: Student Fees $600 Cambric Corp $750 ATK $2300 • Need to raise: $4350

  5. d485514 4674762 5263732 5326121 5544906 4778192 www.uspto.gov Benchmarking - Frame Patents

  6. Checking Size Requirement http://www.pittstate.edu/etech/TM-FinalPresentationMay2006.pdf Benchmarking - Frame Primary Constraints • Carry 2 people • Fit in 4 foot cube • Folding frame or • Telescoping Frame

  7. Folding Frame Hinge http://stu.cbu.edu/Clubs/mbsquad/MB2005/MB2005.htm Benchmarking - Frame CBU Alpha 6 • Pros: • Symmetry • Setup time • Cons: • Max bending stress at hinge

  8. http://www.engr.iupui.edu/me/courses/moonbuggypres2.ppt Benchmarking - Frame Purdue 2000 MoonBuggy • Pros: • No hinge • Cons: • Shorter • Setup time Telescoping Frame

  9. Critical Component BenchmarkingDrive Train: Roller Clutch • Pros: • - Free rolling one way, drives opposite way • - Drive either shaft or housing • - 2 can serve function of differential • - Small and lightweight • - Mounted on either side • Cons: • - Expensive • - Not a standard part Roller Clutch https://sdp-si.com

  10. Critical Component BenchmarkingDrive Train: Disc Brakes • Pros: • - More efficient than rim brakes • - No calipers over tire • - No wear on rims • Cons: • - Expensive • - Heavy • - Put stress on spokes Disc Brake www.wikipedia.org

  11. Critical Component BenchmarkingAckermannSteering Steering Setup • Pros: • Smaller turning radius • Adjustable toe • Cons: • Heavier compared to cables • Steering can bind up Knuckle A-arm Tie-Rod-End Adjustable Sleeve Steering Arm http://en.wikipedia.org/wiki/Image:Suspension.jpg

  12. Critical Component BenchmarkingDouble A-ArmSuspension ATV Suspension Setup • Pros: • Independent wheel movement • Better stability • Cons: • Hard to manufacture • Complicated to design Shock Steering Arm Knuckle A-arm Honda of Salt Lake

  13. Critical Function Prototype (CFP) Suspension and Steering From ATV Steering Arm Shock Knuckle Frame A-arms Drive Line http://www.lsracing.com/

  14. Why Steering and Suspension? • Motivation: • Complex aspect of design • Model computer and analytical parameters • Goals: • Construct front suspension and steering • Analyze critical parameters: • Bump Steer • Camber Angles • Travel • Ackermann Steering

  15. What We Hope to Learn • What works and what doesn't • Changes to critical parameters • Suspension travel • Turning radius: Ackermann Steering • Better assembly, design and build techniques • Steering wheel location

  16. Conclusion • Schedule • Budget • Benchmarking • Frame • Differential • Brakes • Steering • Suspension • CFP

  17. Group Members: Quentin Benson qbenson@gmail.com Elizabeth Nies e.nies@utah.edu Jonathan Hilton jonathan.jonathanhilton@gmail.com Mark Kocik lmark84l@gmail.com Emina Maric me.mina@gmail.com Dave Meier evadreiem@aol.com

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