*156B Week 10

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

• Met with Jules and decided on which design to focus on and decided on a reduction ratio to recommend for the Flat Geared Motor. All testing for analysis completed.

Accomplishments from Previous Week

• Draft Poster completed

• CAD of motor plates and battery plates for both LG & FG

• Machined motor plates and battery plates

• Aluminum hydrophone plate testing & analysis - might not fit underneath controller board :(

• SW model complete with 4 configurations (original, FG, LG, sandwich mounts)

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

• Final Report (Hannah, team)

  • SW Drawings (Myles, Hannah, Devin)

  • Recent test data analysis (Myles)

• Final Website (Ilija, Hannah, team)

• User Manual (Hurby, Ilija)

• Complete any last minute machining (Myles)

• Final Assembly (Devin, Hurby)

• Final Poster (Everyone)

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

• From meeting with Jules & Rob (5/31):

  • For noise recording, usually measure intensity, not amplitude

  • If hydrophone is not saturated, can filter motor noise out

  • For PID (currently unknown): how fast do you the piston to move? Want it to go as slow as possible to reduce noise

  • "Final Design" is Flat Geared motor, but recommend a better gear ratio for internal gearbox

    • Overall: quieter is better

    • Can't be totally final design, because dependent on PID control

  • Find max load FG can take; equate to depth of FG design. Then find smallest gear ratio that still has enough torque--this will increase piston speed

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

• For 2 solutions, give recommendation with pros/cons list. Final design will be the recommended one, and the other design will be explained in detail in Appendix

• Should contact Jules on what design he prefers

• Email Dr. T Paul's email address; Paul might help Jules complete evaluations

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

• Got many helpful comments regarding our report and website from Team 12

Risks and Areas of Concern

• N/A

Resources or Information Required but not Available

• N/A

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• Spent $1170.13

• Remaining: $1829.87

Progress on Report and Webpage

• Webpage and report edits from Team 12 completed. This week will do finishing touches.