Week 8

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

Finished manufacturing Design 1. Vertical Stabilization with human intervention was achieved. New motors/servo have been purchased. Design 2 almost finished manufacturing.

Accomplishments from Previous Week

Final Report draft updated
Open loop hybrid control achieved- vertical stabilization without disturbances.
Issue of bearings popping out solved by clamping down with screws- device ran without failure 10+ times in a row for ~ 1-2 mins each
Design 2 made progress with manufacturing, frame & rails constructed, motor mounts all that is left. Parts assembled.
Servo Arduino Code Updated
Encoder processing code created.

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

Manufacture motor mounts for Scotch Yoke: Jack, Paul
Get IMU working on crank mechanism: Allyson
Combine rpm and servo angle code to automate stabilization: Allyson, Wei
Improve arduino wiring: Jack, Wei
Safety box: Jack

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

Was excited about the open loop hybrid control- instructed us to now implement closed loop control. To do this, we began working on the IMU mounting.
Reiterated desire for increasing the frequency as much as we can (without breaking the structure). Tests up to ~ 1200 RPMs (double original value) were carried out. (all comments on 5/19)

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

In-Person, 5/14:

Had comments on the final report draft. These were addressed and fixed in the revised version of the draft.
Recommended loctite for screws which were walking out. We were able to find some in the machine shop, but we have not used it yet as we have been continuously servicing and modifying the system.
Recommended that metal clamps were used such as c clamps, as we mentioned our plastic clamps weren’t working great. We used metal c clamps from the shop which worked great, so we will order some.

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

No Presentations feedback received.

Risks and Areas of Concern

Vibration of the mechanism could cause fatigue and noise. Screws also walked out of the design, and will likely need loctite.
IMU may be difficult to attach and provide proper data feedback. Wires may also get tangled when spinning around

Resources or Information Required but not Available

Schedule

Describe upcoming milestone, Update Gantt chart, Budget (list amount spent and amount remaining)