横揺れの跳躍について(第l報) : ナビペンデュラーによる実験

抄録

The non-linear rolling, especially the jump phenomena and its motion from a stationary mode of rolling, is still one of the problems to be sufficiently studied. A navipendular was made to study this non-linear phenomena. Experiments on symmetric rolling of a cylindrical model was carried out on the navipendular. The present report describes mainly stationary rollings after and before jump. It is confirmed that even the rolling with a very large amplitude can be sufficiently assumed to be harmonic and the jump is caused by disturbances such as a sudden change of wave height. It is also shown that the energy balance is held through the change of the phase difference between the rolling and the waves even for the heavy rolling after a jump from the light rolling.