2024-09-09 Mechanical Meeting

Division/System Requirements

High Level Flowchart:

• https://lucid.app/lucidchart/0b7a6450-7f18-44b1-a9f3-90d0421b3f96/edit?viewport_loc=-256%2C291%2C2539%2C1128%2C0_0&invitationId=inv_4979a893-bb88-4897-99a6-8a473a5401f9

2024-2026 Requirements Sheet

• https://utexas.sharepoint.com/:x:/r/sites/ENGR-LonghornRacing/_layouts/15/Doc.aspx?sourcedoc=%7B0BE91788-A3F5-403E-BD0D-335539E3212F%7D&file=2025-2026%20Requirements%20Sheet.xlsx&action=default&mobileredirect=true

Research/testing Update

3 wheel or 4 wheel

• 3 Wheel is better but the only concern is tipping

Design Architecture Options

For a 3 wheel car:

Driver and battery position

• Driver in the middle/front - battery box is behind the driver

  • advantageous since driver contributes the most mass

• Driver is in the middle/rear - battery box is in the front or sides of driver

  • on sides of driver will increase width

Aeroshell - find optimal shell profiles (front and side) for the above options

• Seat bottom shell into top shell

Dynamics

• Front double wishbone suspension

  • external or internal

    • for internal suspension - top control arm mounted on top of frame

  • determine lengths of wishbones and ideal suspension travel

• Rear suspension

  • Trailing arm (with two arms/one shock)

Design Philosophy

• Skeleton model/reference sketches

• Naming convention

  • 26-SYS-XXXX-RX-(Description)

• Use of global variables and equations

Aeroshell

What is broken/insufficient?:

What repair options exist?:

How much time do you believe each option will take?:

What level of involvement could new members have in these processes?:

What is your overall outlook on the feasibility of us repairing daybreak with such a capacity that we could pass scrutineering in FSGP 2025?:

Fergo

What is broken/insufficient?:

• Fix some of the roll cage welds (if possible)

• Roll cage needs to be painted

• Brake light broken

• Steering wheel (controls buttons and wiring is fucked)

• Seat?

What repair options exist?:

• weld frame : (

• paint frame : (

• get new brake light

• Make new steering wheel

• Idfk about seat, need to look into it

How much time do you believe each option will take?:

What level of involvement could new members have in these processes?:

What is your overall outlook on the feasibility of us repairing daybreak with such a capacity that we could pass scrutineering in FSGP 2025?:

Dynamics

What is broken/insufficient?:

• Upper and lower steering column

• Wishbone lengths

• Shock extender

What repair options exist?:

• Remake wishbones

How much time do you believe each option will take?:

What level of involvement could new members have in these processes?:

What is your overall outlook on the feasibility of us repairing daybreak with such a capacity that we could pass scrutineering in FSGP 2025?:

Emech

What is broken/insufficient?:

What repair options exist?:

How much time do you believe each option will take?:

What level of involvement could new members have in these processes?:

What is your overall outlook on the feasibility of us repairing daybreak with such a capacity that we could pass scrutineering in FSGP 2025?:

Aeroshell

Fergo

Dynamics

Meth

Emech