156A Week 10

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Scale model was modeled in SolidWorks

  • Materials have been received for scale model of swing (except weights)

  • MATLAB code has been to understand dynamics of swinging

Accomplishments from Previous Week

• • Added standing swinging scenario to MATLAB code

  • Researched different types of rope

  • Scale model designed in SolidWorks

  • Ordered materials for swing

  • Research into seat materials/possible light under seat

  • Went to playground at a park and observed and tested real world swings

  • Budget template created

  • Machine shop form signed off

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Add drag and other resistive forces into MATLAB analysis (Alex)

  • Build scale model (Nina and Gwen)

  • Test scale model (all)

  • Meet in Structures Lab (all; Nina coordinating with Mathieu)

  • Make free body showing forces on swing (Alex and Nina)

  • Update budget (Engleap)

  • Individual component analysis:

    • Alex: Matlab things

    • Gwen: Seat analysis

    • Engleap: Rope material/drag

    • Nina: Fabric analysis

    • Adam: Safety

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Would like to see fabric as a source of drag analyzed (3/11)

  • Wants to make sure we looking sheathing for rope (if a more rigid material is chosen) (3/11)

  • Wants to start on full model very early next quarter

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • Wants list of all possible failure modes/user error

  • Would like a list of what we will be testing in the scale model and what we would like to learn

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

Risks and Areas of Concern

• • Simulation accuracy

  • Time constraints for scale model testing

Resources or Information Required but not Available

Schedule

• • Describe upcoming milestone

    • Scale model testing

    • Individual component analysis

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Total spent: $138.10

  • Total Available: $2600

  • Present Balance: $2,461.90

Progress on Report and Webpage