156B Week 10

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

• • Final float was assembled and sealed. Waiting on a few last parts to arrive for the sensor housing attachment.

  • Static tests performed in fresh and saltwater to find bail position for horizontally trimmed float.

  • Leak check performed at Keck pool, no leaks found.

  • Final dynamic test is scheduled with SPAWAR on 3/24/17.

Accomplishments from Previous Week

• • Final float was assembled and sealed.

  • Static testing in salt and freshwater performed, bail position was determined for horizontal trim.

  • Leak test found no leaks.

  • Algorithm for velocity was proposed to Mark, he approved cubic fit to pressure data with analytical derivative of the fit for final velocity profile.

  • Final hardware was purchased.

  • Final SolidWorks assembly was constructed.

  • Poster draft was completed.

  • Confirmed older sensor software does not have the bug that current software has, SPAWAR will use this version.

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

• • Design small float to be added to sensor housing to make it slightly positively buoyant. (Alan)

  • Create excel algorithm for velocity profile deliverable. Create user guide for algorithm, as well as for the sensors. (Aaron)

  • Prepare hardware and updated test procedure for dynamic testing on 3/24. (Harry)

  • Edit report and website based on student feedback. (Kendra)

  • Add testing results and analysis to report. (All)

  • Work on presentation for sponsors on 3/16/17. (All)

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

• • Hardware looks great, one thing is to make the sensor housing slightly positively buoyant.

  • Final cubic algorithm approved, would be nice to make it in excel instead of MATLAB for final deliverable.

  • Weights for dynamic testing have been borrowed from Mr. Gillcrist.

  • Sponsor would prefer an older version of software without glitches.

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

• • Turn in weekly reports on time.

  • If there is a leak, use some sort of valves to seal and allow water to be drained between tests.

  • Make the sensor housing at least neutrally buoyant.

  • Next time leave more material on the fin attachment couplings so they don't crack.

  • Pedro said it would be ok to perform the final test after the final poster session. Just write all of the report up until that section and update the report for final grading. Confirmed with Dr. T.

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

• • N/A

Resources or Information Required but not Available

• • N/A

Schedule

• • Presentation to SPAWAR 3/16/17

  • Dynamic test 3/24/17

Budget (list amount spent and amount remaining)

• • $1,034 remaining of the $2500 budget

Progress on Report and Webpage

• • Update in progress. Waiting to finish the final SolidWorks assemblies to annotate.