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Analysis/Testing
 
  • Weight- Weight will need to be reduced as much as possible in certain areas.  These areas will be determined via calculations of strength and material properties.

  • Material- A suitable material will need to be chosen from examining potential materials and viewing their strength attributes, as well as their machinability, and the ability to withstand repeated loading.

  • Shafts- Analysis will need to be conducted to determine proper design as they will have to resist some rotational forces as well as bending do to weight placed on the main peg body.

  • Peg Body- Determining loads and resultant forces as well as deflection occurring at maximum moments upon the pegs will help with determining best possible design.

 

 

Construction
 
  • Materials

    • Purchase of aluminum stock, steel stock, sleeve bearings, double threaded studs, spring pins

  • Machining

    • Machine pegs using CNC Mill

    • Machine pivoting brackets

    • Assemble pegs with pivoting brackets

  • Assembly

    • Attatch peg components

    • Create mounting brackets

    • Position pegs on bike

Introduction

 

  • Rotational Footpegs to alleviate contact issues at different riding positions

  • Functions as a normal foot peg

  • Rotates 15 degrees forward and backwards

  • Handle a distributed load applied to each peg

  • Have each peg be able to not deform when a load of 185 pounds from the riders weight

 

Designing a set of foot pegs that pivot for a motocross bike require a great amount of analysis within the areas of weight reduction, material selection, peg design, strength, and durability. 

 

Pivoting Foot Pegs Presentation

Results

 

  • Stationary Testing

    • Rotational Capability

      • Didnt quite reach 15 degrees of rotation

    • Deflection

      • Met requirment of under 1/2"

      • Varied between 1/16" - 1/4"

  • Moving Testing

    • Sheared left side off in under 5 minutes

      • Double threaded stud and vast previous fatigue on it

    • Right side

      • Rotated with foot

      • Withstood various impact from obstacles

 
Budget/Schedule
 
  • Budget

    • Under Allowable Amount to Spend

    • Costs wer emore than originally thought to be

  • Schedule

    • Completed everything in time table that was specified

    • Took more hours than originally thought

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