2021-10-07 Meeting Minutes - Drivetrain

2021-10-07 Meeting Minutes - Drivetrain

7 Days until First Draft CAD Due!!!

Goals

  • Review selections for actuators, encoders, and carbon fibre/aluminum

  • Check-in on CAD

Discussion

  1. CF tubes thoughts

  2. Rigidity thoughts?

Additional Tasks

  • CF testing plan → find out deformation tools/machines we have access to, come up with a test plan

  • Continue wheel tread investigation



Update & Action Items

Member

Update

Action Items

Member

Update

Action Items

@Former user (Deleted) (Chassis)

  • Still debating extrusion VS CF

  • CAD both ideas for chassis, get opinions before review

@Former user (Deleted) (Wheel connections)

  • Feedback from Composites Canada!

    • Constraints for adhesive and adhering techniques is temperature-dependent (aluminum expands and contracts more at extreme temperatures, compared to CF)

      • The decision to bond aluminum on the inside VS outside should be based on what's easier for us

      • Leaning towards bonding aluminum on the inside. Easier to make the OD precise vs the ID

    • Recommended bond gap for ambient temperature is 1mm

    • Glue beads to maintain minimum adhesion thickness

  • Rough calculations for 32mm diameter

    • Conclusion: seems to be okay! Supporting the entire rover will still be weaker than CC's weakest tube



  • CAD integration

    • Verify wheel CAD

@Former user (Deleted)

  • Finished Wheelez CAD



@Emily Adam (Deactivated) (Differential bar)

  • Motor selection, encoder selection

  • Send Asha information about motors and encoder

  • CAD differential

  • Order tubes, gearboxes, encoders

    • Investigation tools that we have access to: 3-point bending test, load testing, impact test (abuse it until it breaks), drop test

  • Read some rocker bogie papers

@Former user (Deleted) (Frame/structure)

  • Floating & fixed bearings investigation

  • CAD rocker-bogie structure, considering opportunities to integrated fixed-floating bearings

@Thomas Valer (Deactivated) 







New Tasks

General Notes