2024-11-11 Mechanical Meeting

Announcements

• There are two workdays left until the end of the semester

  • Remember that PDR is January 18, the first Saturday right after we return from winter break

  • Preliminary Design Review Guidelines

• Please follow the Bild naming convention

  • if your members are working on the same part and have competing designs, those should not go on Bild. Only parts that are selected to go through the iteration process should be on Bild

Highlights

Suspension

• Suspension Type Selected
• Hardpoints Finalized
• Shock Selected
• Shock-Pot Mounting
• Motion Ratio, Spring Rate determined

Frame

• Bounding Boxes Finalized
• Roll Cage Finalized
• Passing Frame Sim
• Preliminary Tab Placements

Battery

• Battery Layout Finalized

Aerodynamics

• Top Shell Finalized
• Initial Shell to Frame
• Shell-to-Shell Options
• Preliminary CFD Results
• Pitot Tube Mounting

Unsprung

• Brake Calipers Selected
• Wheel Bearing Selected
• IMU, Hall Effect Mounting

Enclosures

• Enclosure Mounting Locations
• Number of Enclosures Fixed
• Waterproofing Plan

Steering

• Rack Selected
• Ackerman Geometry Finalized
• Upper Steering Linkage Power Transmission Chosen
• Pot Mounting

Ergo

• Preliminary Pedal Box
• Driver Position Fixed
• Preliminary Brake Routing Diagram
• Steering Wheel Design
• Ballast Location

Cooling

• Cooling Strategy Selected
• Rough Routing Scheme
• Battery Thermal Testing Results

Composites

• Research Results (short presentation)
• Mold Reference Scheme Selected
• Manufacturing Plan

Wire Harnessing

• Preliminary Wiring Diagram

Updates/Blockers

Please update me on the progress you’ve made the past week. Do you have any blockers?

Workday Review

• Unsprung ran sims on diameters, tried out SKF Sim Quick Pro for bearing and trailing arm geometry began development

• Suspension

• drivers sized → driver model can be finalized this week

• first frame iteration finished → simming to begin

• initial composite research finished → sandwich panel design and mount design next

• steering wheel designs (daybreak and nextgen started)

• critical hardware back in car and harnessed

• mock cooling intake to send to regs

Next Workday Plan - please break tasks down into sub-tasks

• start simulating frame → get initial data for first iteration

• create initial design ideas for frame jig

• continue working on steering wheel designs

• finish up daybreak pedal box changes (test pedal jig, finish design)

• start work on next gen seat

• manufacture mock module

• characterize a few battery cells and bin

• have all battery box panel cutouts finished and dxfs created for waterjet

  • only layups will be a blocker then

Daybreak Progress?

• Created a preliminary design (CAD model) of the radial tubular intermediate steering shaft constraint

nah

• made intake mock before finalizing to get checked by steve and dan

• car can drive theoretically

  • need to pump tires

Questions people want to ask:

• for daybreak → need master cylinders from car to test new pedal ratios and setup, so when can we take them off daybreak?

What do you need from me this week?