Abstract
This report describes the effect of vertical position of traction links and anti-yaw dampers (traction devices) upon vertical vibration of railway vehicle carbody. In case that the traction devices have offsets from the truck-pitching center, the carbody suffers bending moment through them. Therefore, it is important to decrease such offsets. An objective function concerning strain energies stored in the rubber bushes of traction devices is defined, and the vertical positions of the traction devices are determined to minimize the objective function. By numerical calculation, it is shown that this method is effective to reduce excitation due to truck pitching, especially when the rigidity of traction devices is increased.
