Problem Definition

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(No Transcript)
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Problem Definition
Shovel design hasnt improved with other
technologies in the roofing industry.
-Inefficient
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Criteria

• Safety
• Efficiency
• Cost
• Portability

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Constraints

• Weight
• Size
• Stability

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Basic Stripper
-Man Powered -Width -Lever
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The Flipper

• Electric Powered
• Linear Actuators

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The Jackhammer

• Air Pneumatic
• Self-Propelled

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Mega-Magnet

• Electric Powered
• Dual Linear Actuators

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The Ripper

• Gas Motor
• Hydraulic

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The Tank
-Tracks -Size
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The Crawler
-Powered by a Lawnmower Engine -Consists of
Three Magnets (Revolve about an Axel) -Chain
Driven
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Decision Matrix
- Calculated by multiplying score and weight -
Well balanced, score of eight for all criterion -
High score by forty points - Fair way to evaluate
all potential ideas
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Solution
Mega-Magnet had best overall design.
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Conclusion

• By eliminating the paradigms that we had been
  previously constrained by, our team was able to
  envision many designs that most professionals
  would not have considered. By applying new
  technologies to an old process, we were able to
  come up with a new innovative machine that could
  entirely transform the modern day roofing
  industry.

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References

• http//dailymag.en.alibaba.com/product/50119515/51
  070825/Magnetic_Assemblies/Powerful_Handle_Magnets
  .html
• www.apawood.org/pdfs/unmanaged/WCTENailWithdrawal.
  pdf
• http//www.mcmaster.com/
• www.globalspec.com
• http//www.turtlesoft.com/Goldenseal-Software-Refe
  rence/constroof.htm
• http//lawn-and-garden.hardwarestore.com/83-528-ro
  ofer''s-shovels/pro-d-handle-wood-roofing-shovel-6
  53654.aspx
• Interview with ISU Professor Mani Mina of Applied
  Electromagnetism
• Phone interview with Jim, an Electromagnetics
  Engineer from BOMAG USA
• Interview with ISU Professor Jiming Song of
  Computational Electromagnets

• Interview with Richard Owens (professional
  roofer for 50 years)