Dynamics of a heavy pendulum of variable length with a movable suspension point
摘要
Dynamics of a pendulum of variable length with a movable suspension point performing a predetermined motion is considered. The laws of changing the length of the pendulum and the motion of the suspension point are indicated, at which the equation of motion can be reduced to the equation of motion of a mathematical pendulum of constant length. The result obtained is extended to the case of a spherical pendulum.