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Lunar Wheel

Lunar Wheel. 1st Update. No Competition. Options for moving forward Continue as if there would be a competition Taking the previous MAE 435 phases and develop them into a working prototype Identify the issues and failure of the previous design sent to competition and develop solutions

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Lunar Wheel

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  1. Lunar Wheel 1st Update

  2. No Competition • Options for moving forward • Continue as if there would be a competition • Taking the previous MAE 435 phases and develop them into a working prototype • Identify the issues and failure of the previous design sent to competition and develop solutions • Ultimately the group decided to continue our work from the previous semester

  3. Final Group Decision • Dr. Britcher advised us to move forward with what was chosen with our design with the MAE 434W last semester

  4. Vehicle Specifications • Guidelines and specifications based on 2000 Chevy Silverado • Wheel measurements: • 9.25” wide • 6.93” sidewall • overall diameter of 29.87” • 16” diameter rim

  5. Issues • Tolerance issues with current design as there was not as much room in the wheel as there would have been in the NASA testing vehicle • Solution to interference • increase back spacing; use wheel spacer Clearance Issues Possible interference with the rear leaf springs

  6. Material Selections • 6xxx series alloys contain magnesium and silicon and these alloys have a good balance of corrosion resistance and strength • Examined Aluminum 6061 T6, 6063 T6,and 6066 T6 based on strength, corrosion resistance, malleability, cost, and operation temperature tolerances

  7. Material Chosen • Aluminum alloy 6061 T6 has reasonable yield strength, relative low cost, and good corrosion resistance • Possible purchase from McMaster-Carr

  8. Issue with designing • It was observed that the springs that were to be used in the tread would not have the load bearing capacity that was needed • The design group discussed the possibilities with the group in charge of springs • Determined that the current spring design for the tread was untenable

  9. Group Virtual Meeting • Group decided to revisit a portion of an older wheel design • Corrugated tread design was chosen in place of the spring mounted feet • Corrugated material would be mounted onto the existing hub and tread could be supplemented with rivets

  10. Move forward with testing • The design team is hard at work finishing up the digital 3D models • Testing phase will begin soon

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