156B Week 2

Status: Finalizing two critical design decisions regarding the spar base and ADV-housing/probe fastening. The primary component anchoring down the spar is a large railroad wheel and the spar base is to attach to the wheel, but it may not lay flat on the seafloor. Thus, two degrees of freedom are needed so that the spar stands vertically. Design involves having a swivel and a hinge. A probe holder is needed and is being developed on Solidworks and may be fabricated using 3D printing, while simpler materials and approaches are being explored such as using small pipe channels, PVC cement, and hose clamps

Accomplishments from Previous Week

• Adjustments were made to the design of the spar

• Changes were made to the website. Theme was added to the website as well.

• Biography of each student was added to the website

• Gantt chart was updated

• Team meeting to discuss the presentation

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

• Begin presentation for design(Team)

• Find better suppliers and proper materials(Erik Zamarripa, Ayesha Riaz)

• Fabricate full sized prototype(Erik Zamarripa, Ayesha Riaz)

• Render better simulations and finalize design of the spar base (Horim Yu)

• Full mechanical design in solid works(Eliran Lenard)

• Numerical values from our equations of motion(Erik Zamarripa, Horim Yu)

• Discuss the final design with the sponsor (Eliran Lenard, Ayesha Riaz,Erik Zamarripa, Horim Yu)

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

• The sponsor was unable to meet last week with the team. Team meets the sponsor every Tuesday at 1pm.

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

• Discussed PVC Cement and provided useful information for more reinforcement of spar

• Use principal stresses for analysis of PVC pipe instead of Von Mises

• The current design was shown to the instructor to get some feedback.

Comments from Other Students in the Class .

Few comments from the Risk Reduction Presentation.

• Talk about costs a bit more?

• Images used and details provided can be organized in a more interesting manner.

• Could have reorganized the wave dynamics into the background information.

• I think they can explain more about the picture.

Risks and Areas of Concern

• Show TA, Professor, and Sponsor our FEA results. See what can be done to get better results.

Schedule

• • Describe upcoming milestone

    • • Finish Design and FEA simulation (1/20/2021)

      • Begin design proposal presentation

      • Finish website

      • Buy parts of the spar

      • Prototype critical areas (1/25/2021)
        Base of the spar, connectors, threads, e.t.s

  • Update Gantt chart.
    Finish Design and FEA simulation (1/20/2021)
    Prototype critical areas (1/25/2021)
    Base of the spar, connectors, threads, e.t.s
    Perform all the tests on the prototype (1/30/2021)

Budget (list amount spent and amount remaining)

• Team spent - prototype ($15)

Progress on Report and Webpage

• Theme was added to the webpage

• Team and biography was added to webpage