抄録
Many researches on the longitudinal motion of locomotive while it is running, have already been reported. But the explanations on the velocity with which the locomotive moves longitudinally while running seem insufficient. In this paper, the longitudinal motion of locomotive is regarded as an oscillation which causes a periodical collision between the locomotive and tender. This is a forced oscillation caused by the unbalanced force of engine. Then the velocity of the oscillation can be calculated as a resonant velocity. The results obtained from the calculations concide fairly with practical measurements. Preventions of these oscillations are also discussed.
