Suspension Peter Morabito Michael Paliga Brian Ross Drivetrain Kenny Elliot Patrick Mooney Dylan Quinn Frame Dan D’Amico Curtis May Greg Schafran

To design a vehicle for the SAE Baja Competition

[Veh. wt]*[Sin(incline angle)] = Repelling Weight [650 lbs]*[Sin(40 degrees)] = 418 lbs Rep wt = (tire rad)*(CVT ratio)*(engine tq)*(X min) 418 lbs = (1.0 ft)*(3.85)*(14 lb-ft)*(X min) ----->Xmin= Gear Ratio Calculations

Stage :1 Size: 20/40 teeth Pitch: 12 Face Width: 1.0 in Stage :1 Size: 20/80 teeth Pitch: 12 Face Width: 1.5 in 6.5 inch diameter output gear allows room for differential mounting to increase vehicle handling.

Front Suspension Basic Double A-arm setup Same overall design as previous years car No significant changes, just modifying to fit newly designed frame Rear Suspension Using a rear trailing arm set up similar to the 2012 car Eliminating the dynamic toe aspect, but maintaining the dynamic camber Improving wheel travel and reliability

ASSEMBLYFRONT REAR

Steering wheel angle vs. steering angle (front left) Motion is of a body roll

Camber angle (rear right) Motion is of a body roll

Camber Angle (rear right) Motion is of a jump

Camber angle (front right) Motion is of a jump

FEA - Stress FEA - Displacement TRAILING ARM 1’’ X 0.065’’ 4130 STEEL

UPPER A-ARM FEA - Stress FEA - Displacement 1’’ X 0.065’’ 4130 STEEL

LOWER A-ARM FEA - Stress FEA - Displacement 1’’ X 0.065’’ 4130 STEEL

Fox Float Racing Shocks:  Adjustable air spring, velocity damping control, and light weight.  Reduced Cost - $ per pair versus $859 per pair for Custom Works Shocks.  Comparable performance

Frame- Methods SAE standards SAE standards Firewall Firewall Front end Front end Roll cage Roll cage Rear end Rear end Finite Element Analysis Finite Element Analysis

The 2012 ODU Mini Baja (55 th place) weighed 479 pounds The 2012 ODU Mini Baja (55 th place) weighed 479 pounds Cornell’s car (3 rd place) weighed only 306 pounds Cornell’s car (3 rd place) weighed only 306 pounds Reduce frame size and weight Reduce frame size and weight Eliminate redundant members Eliminate redundant members Frame- Analysis

Material-4130 steel tubing: primary members: 1.25”x.065 secondary members: 1”x.065 Shorter overall length Lighter than previous ODU cars: 63.7 lbs. Frame- Results