156B Week 4

Weekly Progress Reports

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

• • Risk reduction test completed Thursday the 14th at Fiesta Island

    • Preliminary analysis demonstrated that the water jet helped significantly

  • Cheek plates will be mounted to front tow shackle to deflect obstacles

Accomplishments from Previous Week

• • Completed prototype blade fabrication

  • Conducted test with new plow style blade and water jet

  • Got new/more test materials from sponsor

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

• • Order material/start fabrication of actual sled (Zak)

  • Analyze data from test (Zak)

  • Order materials/start fabrication of steel blade (Joe)

  • Look into a stronger pump so that water jet can cut quicker (Joe)

  • Order materials/ start fabrication for reel to trough system (Paulina)

  • Call DeepSea Power and Light and get information/cost of battery cells (Paulina)

  • Order and get materials from the sponsor and start fabricating the cable reel (Hanh)

  • Integrate reel into test sled so cable laying can be a part of next test (Hanh and Paulina)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • New design of plow blade may be too thin to provide enough downward drag

    • Adding wider cutting teeth

  • Deep sea batteries do not hold charge

    • Going to replace internal battery packs

    • Using regular sea battery for risk reduction test

  • Polycarbonate prototype blade may have stress cracks near mounting locations

    • Adding inserts for bolts

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

• • Use a rod with pivot point that is pulled to push brush into reel

    • Will work better than spring method and will not have as much play so that pressure from the brush is even

Risks and Areas of Concern

• None    

Resources or Information Required but not Available

• • Remind Professor T. to talk to Mark about how the donation to pay for project will work and what the timeline will look like for it

Schedule

• • Get materials for new sled and blade design

  • Begin manufacturing and assembly of new designs

  • Begin integration of reel onto test sled

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent $300

  • Remaining $3700

  • Progress on Report and Webpage

  • Report has been started

    • Title and Background have been added

    • Statement of Requirements, Deliverables, and Review of Existing Solutions are done

    • Impact on Society has been added

  • Webpage has been started.

    • Initial files and presentation  uploaded

    • Cover page executive summary added