1 / 15

Glass fiber composite big wheel

Kim Allen, Sam O’Flaherty, and Austin Schantz. Glass fiber composite big wheel. Design NOTE: All dimensions are in inches. Front View. 3D Conceptual Design. Side View. Top View. Force Calculations. Force Calculations Continued. Known values F p =250 lbs FS=3 W=575 lbs FS=3

brit
Download Presentation

Glass fiber composite big wheel

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. Kim Allen, Sam O’Flaherty, and Austin Schantz Glass fiber composite big wheel

  2. DesignNOTE: All dimensions are in inches Front View 3D Conceptual Design Side View Top View

  3. Force Calculations

  4. Force Calculations Continued • Known values • Fp=250 lbs FS=3 • W=575 lbs FS=3 • Calculated Values • Fw=127.63 lbs • FB=447.37 lbs

  5. Force Calculations Continued • Max Deflection=.1 inch • From this Max strain • εmax-B=.025 • εmax-w=.004545 • If FB=447.37 lbs Then σB=FB/A=1.553 psi EB= σB/ εmax-B=61.32 psi=.000422787 GPa • If Fw=127.63 lbs Then σw=Fw/A=7.977 psi Ew= σw/ εmax=1755.12 psi=.0121GPa

  6. Composite Design Theoretical Values • Initial Values • Calculated Values • Note that the Emax =.0121 GPa. This composite lay-up should hold

  7. Test Section • Small section with same material layup as project • Planned Use: Find the maximum compressive and torsion load the layup could withstand • Actual Use: Identify the difficulties in manufacturing and bagging a 3-D project

  8. Manufacturing • Foam Core Construction Hot Wire Drilling the hole for the axle Sanding

  9. Foam Core

  10. Laying Up the Foam with Glass Fiber Composite The Big Wheel Bagged and ready for vacuum curing Beginning the Lay-up

  11. Attaching Front yoke and Preliminary Testing Drilling Holes for Bolts Adjusting Yolk Making sure it holds our weight Making Sure it Moves Smoothly Making Sure it moves and can hold extra weight

  12. Final Product

  13. Testing • Testing Plan • Ride around a parking lot • Basic turns • Riding up a small ramp • Test completed 3 times • Results • Tests completed successfully • Withstood pull-up and torsion forces

  14. Conclusion • Successes • Weight rated for an adult rider • Withstood forces • Project completed!!!!! • Failures • Pedals slip within the hub limiting acceleration • Metal components added significant weight • Test section not suitable for analysis

  15. QUESTIONS?

More Related