Mech Leads Design Challenge

Owned by Minqian Lu
Last updated: Nov 28, 2021
1 min read

Brainstorming

  • Bellcrank and bellcrank clevis from an inboard suspension

  • Need to define

    • Min:

      • shock specs

      • chassis weight/load cases - SOV

      • Goals of the project in writing

      • Reach out to advisors/previous leads

    • Aidan:

      • chassis (and chassis member) geometry

        • distance between bottom wishbone and shock “plane”

      • packaging constraints (bounding envelope)

  • Given components are red (shock, chassis, bottom wishbone)

Other ideas

  • Trailing arm from MSXIV with mock chassis weight, defined motor, rims, mounting points etc.

Timeline/Checkpoints

  • Kev’s list

    • Force analysis (hand calcs), OTS part selection

    • material and manufacturing selection,

    • FEA

    • Drafting

Resources

  • Reading list

    • Materials

    • Intro to Stress and Strain

    • Understanding Young’s Modulus

    • True Stress and True Strain

    • Poisson’s Ratio

    • Material Strength, Ductility, and Toughness

    • Understanding Metals

    • Solid Mechanics

    • Understanding Plane Stress

    • Stress Transformations

    • Area Moment of Inertia

    • Shear force and Bending Moment Diagrams

    • Torsion

    • Trusses

    • Stresses in Beams

    • Deflection of Beams

    • Buckling

    • Mechanical Design

    • Failure Theories (Von mises and Tresca)

    • Fatigue Failure & SN Curves

    • Finite Element Method

    • Manufacturing Processes

    • How things are made (animated video on manufacturing processes)