FSAE Mobile Workstation INSERT SUBSYTEM Preliminary Design Review

FSAE Mobile Workstation INSERT SUBSYTEM Preliminary Design Review Name Date P 19223 FSAE Mobile Workstation

GOALS AND IMPROVEMENTS • Support the weight of the cart • Provide steering • Mount brakes system • Minimize rolling friction P 19223 FSAE Mobile Workstation

ALTERNATIVE DESIGNS • Purchase steering hubs with brakes already included • Simpler to integrate into cart • More expensive option – would put project over budget • Unknown dimensions and integration • Attach bought hub to custom knuckle • Less parts to manufacture • More expensive for us • No way to integrate brake caliper P 19223 FSAE Mobile Workstation

GEOMETRY P 19223 FSAE Mobile Workstation

GEOMETRY P 19223 FSAE Mobile Workstation

INTERFACES/CLEARANCES • Frame • Brakes • Knuckle P 19223 FSAE Mobile Workstation

LOAD CASES/CONSTRAINTS • 715 lbs input at tire • Load capacity of selected tires • 500 lb lateral force • Side load from hitting curb P 19223 FSAE Mobile Workstation

DATA • N/A P 19223 FSAE Mobile Workstation

ALLOWABLES • 4140 Steel P 19223 FSAE Mobile Workstation

ANALYSIS • Hand Calculations for bolts P 19223 FSAE Mobile Workstation

SIMULATION SETUP • N/A P 19223 FSAE Mobile Workstation

SIMULATION RESULTS • N/A P 19223 FSAE Mobile Workstation

TESTING PLANNED • Steering Angles Achieved • Rolling resistance on Flat ground P 19223 FSAE Mobile Workstation

WEIGHT REVIEW • For CDR P 19223 FSAE Mobile Workstation

MANUFACTURING AND SERVICEABILITY CONCERNS • Making Hubs and spindles will be difficult • Welding jig will be required for spindle assembly • Will need to integrate caliper and rotor into the assembly P 19223 FSAE Mobile Workstation

FMEA P 19223 FSAE Mobile Workstation

MATERIAL NEEDS • Steel stock - round 2” x 16” • Steel stock - round 6” x 16 • SKF bearings P 19223 FSAE Mobile Workstation

PARTS/MATERIAL TO ACQUIRE • SKF Bearings • Will Be included in team SKF order • AN bolts • Will get from Aircraft Spruce P 19223 FSAE Mobile Workstation

WHAT I LEARNED? • How to use different size bearings to make press fits easier • SKF bearing Selection tool P 19223 FSAE Mobile Workstation

THANK YOU! QUESTIONS? P 19223 FSAE Mobile Workstation