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2011 Human Powered Vehicle Challenge 'Mjolnir'

2011 Human Powered Vehicle Challenge 'Mjolnir'. Team Members:    Tad Bamford                                 Ben Higgins                                 Chris Schultz                                 Aaron Stanton                                 Neal Pang. Overview. Introduction

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2011 Human Powered Vehicle Challenge 'Mjolnir'

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  1. 2011 Human Powered Vehicle Challenge'Mjolnir' Team Members:   Tad Bamford                                 Ben Higgins                                 Chris Schultz                                 Aaron Stanton                                 Neal Pang

  2. Overview • Introduction • Mission Statement • Product Design Specifications • HPVC Rules and Guidelines • 2010 HPV Team Reflection (2nd Place Overall) • Benchmarks • Design Considerations and Metrics • Involved Analysis • Conclusion • Appendix

  3. Mission Statement     We, the 2011 PSU HPV team, will design and manufacture a vehicle to surpass the competition in the 2011 ASME HPVC West in Bozeman, MT and the achievements made by previous PSU HPV teams.  

  4. Product Design Specifications Setting an Archetype • Overcome obstacles • Given, Required, and Solution. • Satisfy the customers • Accommodate solution • Learn from history • Follow successes • Abandon mistakes

  5. 2011 HPVC Outline • Events • Design •  Engineering Principles/Practices • Drag Race • Acceleration/Top Speed • Utility Endurance • Practical Performance/Reliability • Speed Endurance • Sport Performance/Reliability • Energy Storage Devices • Human power only external energy source • Preferred power assist system

  6. Customersrs • End users - Design Team, Race Team • Management - ASME Competition Rules, Faculty Adviser, Competition Judges • Finance - SALP, ME department • Procurement - SALP • Manufacturing - Design Team, ME Department, Contract Shops • Shipping - Design Team • Codes and Standards - ISO, ASME Competition Rules,Bicycle Industry Standards • Legal - SALP • Maintenance - Design Team, Race Team, ME Department

  7. Strengths & WeaknessesExperience from past events shows focus aspects • Things to Improve • Steering geometry - Efficiency and high speed stability • Leaning - To complement  steering geometry • Seat - Comfort and adjustability • Handlebars - Optimize leverage and position • Weight - It can always be lighter Ideas to Run With • Tricycle - Stable and easy to use • Rohloff Hub - Simplifies drive train • Minimal Fairing - Balance of benefits and cost • Rider position - Proven effective and comfortable

  8. Key Design Constraints • Stop within 20 feet from 15 mph. • Turn radius <25 feet. • Travel 100 feet stably in a straight line. • Roll bar that absorbs impact energy, resists abrasion and prevents body to ground contact. • Roll bar physically passes prescribed top and side static loading tests. • Professionally  manufactured safety harness. • Transport a total load of 20 lbs with dimension requirements • Look awesome!

  9. Design Considerations • Top Speed/Acceleration • Weight • Aerodynamics/Shape • Practicality • Package Transport • Comfort • Energy Efficiency/Management • Simplicity/Ease of Use • Maneuverability • Bicycle vs.Tricycle • Geometry • Turn Radius  • Dynamic/Static Frame • Reliability and Manufacturability • Materials • Safety Factor • Maintenance • Constraints • Roll Bar • Seat Belt • Sharp Edges

  10. Analysis • Vibrational Analysis and Programming • Suspension • Finite Element Analysis • Frame • Wheels • Uprights • Dynamic Model Behavior • Dynamic Frame Inputs • Strength of Materials • Wheels • Computational Fluid Dynamics • Fairing • Manufacturing Processes

  11. Conclusion The goal is to design a human powered vehicle which follows the rules and guidelines of the challenge, while also proving ourselves as notable engineers among the many others competing.      As good practice for outstanding engineering, fabricating a well planneddesign will save time and money!

  12. Schedule

  13. PDS Summary

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