Design Proposal Presentation

Weekly Progress Report

What have been done in the past week

• Finalizing designs of past four risk reduction prototypes (2D moment, 3D moments, reaction forces)

• Purchasing materials for the prototype improvements

• Building the models with suggested improvements

• Brainstorming ideas for all design challenges

  • Truss bridge

  • Stacking Center of Gravity Competition

  • Moment of Inertia

    1. TBD

Feedback from meeting with sponsor

• Individual feedback given for each demonstration tool

• Truss bridge

  • Need to brainstorm what will be used for the supports (rocker, fixed)

  • Need to brainstorm the pros/cons of limiting the design to only bridges

    • What else would we allow them to do?

    • What more materials would be needed w/ those ideas involved?

  • Can check out Polybridge (online, app store, or google playstore) for design inspiration

    • https://store.steampowered.com/app/367450/Poly_Bridge/

  • Need to replicate pin joints between truss members

    • Reduce friction at joint

    • Binding barrel could be used as a pin joint? https://www.mcmaster.com/binding-barrels/steel-binding-barrels/

  • How do we make this an open-ended design challenge (not everyone doing the same thing)?

    • Students are maximizing a figure of merit that considers cost and strength?

• Moment of inertia

  • How do we make this an open-ended design challenge (not everyone doing the same thing)?

    • Performance index (FOM) that considers the MOI in 2 axes (subjecting to a load in 2 separate directions)?

  • Need to leave more room for creativity from students

• Center of mass

  • Stacking stones

    • Highest wins

    • Maximize height and width with a small base?

    • Objects would have regular geometries (instead of actual stones) so that the students can calculate the C.O.G.

• When brainstorming ideas, consider how it facilitates learning

List your current concern according to the importance

• We may need to select which models are the most important to complete to prioritize quality over quantity

• Testing prototypes on students by end of quarter

What is the next step of your project

• Priority: Constructing final prototypes of the demonstration tools (2D moment, 3D moments, reaction forces)

• Brainstorming more thorough ideas for the design challenges

• Design Proposal Presentation on Tuesday

• Week 3 Report Sections due Friday

  1. Impact on Society

  2. Professional Responsibility