Simple Harmonic Motion

A term describing the motion which occurs when a vibrating structure is displaced and experiences a restoring force proportional to its displacement e.g. a pendulum. In the absence external forces and damping, the variation of displacement with time is sinusoidal.

The equations of motion are:

See also: Lissajou′s Figures, Pendulums, Simple Harmonic Quantity.

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Acoustics and Vibrations Animations A collection of animations produced by Daniel A. Russell, Ph.D., Associate Professor of Applied Physics at Kettering University.