The anti-roll bars connect the left and right side of the car in order to prevent excessive body roll. They also allow for easy tuning of the oversteer/understeer behavior of a car during steady state cornering.
I designed the front anti-roll bar for the 2018 car. It incorporates a titanium flexure bar that provides the roll stiffness. This bar can be twisted by pulling a cable from the driver’s seat in order to adjust the roll stiffness. This design allowed for a tighter packaging of the front shocks compared to previous years and incorporated shared fasteners in order to reduce the overall weight. The total mass of the new Z anti-roll bar assembly was less than 20% of the previous U-bar style design. I machined all of the components except the titanium flexure blade myself in the student machine shop.
The roll bars must be easy to adjust for on track tuning
Weight is a key consideration, as the mass of any moving components adds to the unsprung mass of the car.
Fatigue of the flexure components must be considered as it endures high strain rates