Overview of Status of Analysis, Design, Fabrication, Tests, etc.
All fabrication done except:
hydrophone isolation plate (prelimnary tests done)
attaching POT
Rigorous testing underway to validate improvements
sandwich mount concerns
Accomplishments from Previous Week
2nd draft Final Report complete
Tested hydrophone isolation bracket with bushings for both Large motor & Flat geared
not final design but a step
Eliminated sandwich mounts from design: couldn't withstand load, made assembly more difficult
Eliminated lead screw from design: it jams with large motor, ball screw doesn't jam
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Make draft poster
Machine top battery plate
Arduino/pot for ball screw speed
Complete more cycle testing
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
N/A
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Dr. T: try to use potentiometer/Arduino with PWM to analyze ball screw/motor system.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
People preferred large motor over flat geared
Try testing large motor at lower voltages
"Under no load, there is no noise difference. Under load, the system becomes a bit quieter as you lower the voltage, but it is still relatively loud and saturates the hydrophone. And the piston speed also decreases as you lower the voltage, but is still pretty fast." - Hannah
Look into how temperature at depth affects battery life. Apparently very low depths affect the SOLO floats, but that's at 2000m, and we are only designing for 100m depth. Should be fine.
People loved the matching hawaiian shirts!!
Risks and Areas of Concern
Can the non-saturated audio from the flat geared be filtered out?
Where do you think we stand with sponsor satisfaction?
Resources or Information Required but not Available
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
Incorporated feedback to website, working on final report