Roll angular inertia (Automobile handling)


Automobile handling and vehicle handling are descriptions of the way wheeled vehicles perform transverse to their direction of motion, particularly during cornering and swerving. It also includes their directional stability when moving in steady state condition. Moment of inertia is the mass property of a rigid body that determines the torque needed for a desired angular acceleration about an axis of rotation. Automobiles, using wheels and tires of different sizes (proportional to the weight carried by each end), increase the time it takes to settle down and follow the steering. Roll angular inertia (for a uniform mass distribution) depends on the (square of the) height and width. Greater width, though it counteracts center of gravity height, hurts handling by increasing angular inertia.

Related formulas


IRoll angular inertia (kg*m2)
MUniform mass of the automobile (kg)
hHeigth of the automobile (m)
wWidth of the automobile (m)