Calculator tool

cycle: T ² = 4 * PI ² * I/MDGS

T = cycle

I = Moment of inertia

M = Quality

g = gravity acceleration

D = Central axis length

Simple Pendulum, also called math pendulum, pendulum Quality is concentrated on the object (regarded as a particle), Pendulum length does not change.

Complex pendulum, also known as physical pendulum, pendulum magnitude arbitrarily, shape magnitude can not be ignored.