Abstract
he body of a two-wheeled trailer with a swing-axle suspension exhibits steady-state bounce and roll motions when excited periodically by vertical inputs at the wheels. Graphical constructions are presented for the determination of (a) the frequency-response amplitudes of the body support points, and (b) the effect of roll stiffness on roll amplitudes. Damping of the anti-roll torsion bars is favoured by the results of the studies. The theory may be applied to motor car suspensions if the coupling of the front and rear suspensions through the body is neglected.