2024-09-30 Mechanical Meeting

Announcements

• Action items I set from last week’s meeting:

  • Have week-by-week timelines in the daybreak gantt chart

  • Have material ready to set a track width, wheelbase, and CoG location

  • Have draft research proposal by EOD 9/28 - Advait

  • Create a more detailed plan (roughly in general detail, doesn’t have to be hyper-specific) for onboarding over the next 5 weeks

• SRR is THIS SUNDAY starting @ 12pm

  • trial run for dynamics, aeroshell, and emech is on Friday evening

Machine Shop Certification

Please fill this excel sheet out with all members that need to be machine shop certified. Only include people that are priority

https://utexas.sharepoint.com/:x:/r/sites/ENGR-LonghornRacing/_layouts/15/Doc.aspx?sourcedoc=%7BD88CEAD1-E993-46BF-B9AF-D0F19DE82301%7D&file=Machine%20Shop%20Cert%20Initial%20Count.xlsx&action=default&mobileredirect=true

Ansys

Please ask members who need access to Ansys to fill this form out:

https://forms.office.com/r/cmPNL0fC8M

SRR Takeaways

• Body did an exceptional job with their SRR practice. Here are a fewkey takeaways and tips I had:

  • Rename “Big rules” to “relevant regulations”

  • Include diagrams and images wherever possible to increase clarity and break up long periods of talking

  • Daybreak retrospective should be system specific

  • Go into the how and why when discussing mistakes made in the past

  • Be specific with your metrics when discussing improvement

  • Discuss how system goals tie into team goals

  • Break up long slides with text for clarity

    • Don’t be afraid to have information in the presenter notes

  • Be able to understand and explain any technical assertions you make (ex: explain why it is desirable when possible to have a larger tube with thinner walls than a smaller tube with thicker walls)

  • If you have validation plans for you metrics please include. Important to show how you will prove you met your goals

  • Be descriptive about operational processes (ie, what will you outsource)

  • When making comparisons between architecture decisions, use a decision matrix with weighted categories to explain your choice

What is something you struggled with this week? What is something you are proud of this week?

• SRR Deadlines

• Plan for workday was good and people liked it (even though one person felt like it was a bit repatatvie)

•  finishing all our work

• workday wasnt planned out as well as we wanted

• still proud of how we managed to get people involved

• doing work with 3 finals incoming
  

• first workday went hard

Workday Review

everyone seems to be engaged

got feedback form our form from one person saying that it was interesting and engaging and another person said it was repetitive and a boring presentation what an asshole

• aerodynamics didnt have as clear of an outline as it should have for the first half of the day

• composites was maybe too technical and we’re not sure all the members understood everything

new recruits were excited and engaged (literally couldn’t get them to go to lunch, they were locked into SolidWorks)

real work starts next week, hopefully they’ll still be excited and engaged

Next Workday Plan

Suspension:

Steerin: Draw the bicycle model for using the previous cars dimensions in solidworks, correlate model with ackerman calculations and correlate ackerman angles with physical steering geometry (4 bar probably, maybe 6 bar)

Unsprun: Spend 3 hours on just going through unsprung together dimensions and finding out all the dependencies. Then go about who needs to do what design.

Aerodynamics:

• Keep building up solidworks knowledge, at least half the day spent teaching them how to do 3D parts, refining splines and relations(give them different parts to make on their own)

• Give them timeline for making the shell, design constraints and everything, find something they can do that helps forward the shell design w/o solidworks, maybe aerodynamics research?

Composites:

• continue research

• kevlar battery box layup

New Members:

Old Members:

New Members:

Old Members:

New Member Projects

suspension: reference sketch from vsusp control arm outputs using parameters

1 member : Rear trailing arm x unsprung member

1 member : Composite components collab w composites, > interest in load analysis, 

1 member :  Daybreak

1 member : Daybreak

Unsprung:

1 person rear swing arm

Sami working on Hub + Spindle design

1 person working on hub and spindle separate

Steven + 1 person working on upright

steering: Draw the bicycle model for using the previous cars dimensions in solidworks, correlate model with ackerman calculations

Composites:

Aniq: Push rods and control arms
Akhilesh: Push rods and control arms
Sai: Composite frame
Jaden: Frame
Noya: mold prep
gaia: mold prepresin infusion: Medha, advait, sai

Aerodynamics:

• nose(3 members, 1 sim, 1 research, 1 CAD, or all go)

• tail(same)

• canopy(same)s

Frame:

• Frame Jig

• 1st Frame Prototype

Daybreak Progress?

nun.

N/A

huh

Questions subsystems want to ask:

can one of my members work w composites as a main task this sem? @advait

at some point can we / do we want to do a mech joint lecture practice on FEA on a part or some shit - maybe noah led or smth

same for master modeling from esther perhaps?

nah