Question

Properties of a car:
ms=800kg
wheelbase L=2.2m
CG is L1=1.3m behind front axle
mass moment of inertia of cars body about y axis is Iy=780kg-m^2
combined front spring stiffness is kf=18.4kN/m
combine rear spring stiffness is kr=21.8kN/m
car is traveling with speed V=20m/s on sinusoidal road with wavelength lambda=5m and amplitude Zo=.01m

The undamped steady state bounce and pitch moments Zss(t) and thetass(t) are:
Zss(t)=1.73998e-4sin(25.1327t+1.3891899)
thetass(t)=9.6296e-4sin(25.1327t+3.3096)

Describe the undamper steady state motion of the body of the car at this speed

Answer 1