156B Week 6

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

• • Fabrication and Testing

Accomplishments from Previous Week

• • Flow meter/pressure transducer 

    • Documentation (Tim, Cameron) 

    • Update code for new LCD, fan and pressure transducer. (Cameron)

  • Vacuum System

    • Buy 3 way valve and adapters for hoses and flow meters (Heja)

  • Report

    • Organize CAD drawings for report (Cameron)

    • Abstract (Heja)

    • Executive Summary (Heja)

    • Chapter 2: Description of Final Design Solution (Tim)

      • Final Design Solution with brief review of requirements (Tim)

      • Figures/Drawings (Cameron/Tim)

    • Chapter 3: Design of Key Components

      • Internal Frame (Scott)

        • CAD Figures (Cameron)

      • Fabric (Scott)

      • Flow meter/pressure transducer (Cameron)

        • CAD Figures

    • Chapter 4: Prototype Performance (Tim/Cameron) 

      • Hold pressure test? Postpone until week 7.

    • Chapter 5: Design Recommendations and Conclusions (Tim)

      • Changes to zipper for production design 

    • Format Report (Cameron/Heja)

    • Upload Report (Cameron)

  • Proof of Concept Presentation

    • Add Catenary simulation to proof of concept presentation (Scott)

  • Website

    • First draft of website (Cameron)

      • Home Page

        • Sponsors

        • "How it works" summary

        • Photos of current frame

        • List of Deliverables

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

• • In Progress / Done

    • • • • Flow meter/pressure transducer 

          • Calibrate pressure transducer (Cameron)

          • Create OP-Amp circuit (Cameron)

          • Integrate new circuit with Arduino (Cameron)

          • Sewing

          • Nylon strap mesh (Scott) 

          • Neoprene seal (Scott) 

          • Sew everything (Scott)

          • Moral Support (Everyone)

          • Material stress test with sewn fabric samples (Heja)

• • • • • Frame

          • Cut two more support poles (Tim)

          • Cut notches in arches for extra poles (Heja)

          • Website

          • Report

          • Start poster (Heja)

          • Revise report from notes (Cameron, Tim)

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

• • Spoke with sponsor about forces. Asked about distributing forces across internal frame and bed frame. We are adjusting the design to accommodate both a lower internal platform and also work with the lower design by redistributing forces around top of frame. The proposed redesign is very close to existing designs and sponsor would rather have our initial design built. 

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

• • Suggested adjustments to solid works FEA assumptions from fixed to simply supported. Updated analysis to match.

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

• • N/A

Risks and Areas of Concern

• • New forces on upper frame. 

Resources or Information Required but not Available

• • Simulate/calculate strap forces distributed to frame. 

Schedule

• • Finish sewing complete structure (5/15)

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $984.21 Spent

  • $4515.79 Remaining

Progress on Report and Webpage

• • First draft of report turned in

  • Updated website to match

  • Final poster started