Design of Passenger Car

A full car model with eight degrees of freedom is considered for analysis.

Full car (11DOF) model consisting of passengers seats and sprung mass referring to the part of the car that is supported on springs and unsprung mass which refers to the mass of wheel assembly. The tire has been replaced with its equivalent stiffness and tire damping is neglected. The suspension, tire, passenger seat are modeled by linear springs in parallel with dampers. In the vehicle model sprung mass is considered to have 3DOF i.e. bounce, pitch and roll while passenger seat and four unsprung mass have 1DOF each.