Introduction to Harmonic Motion

Simple Harmonic Motion

Damped Harmonic Oscillators

Under damped systems

Over damped systems

Critically damped systems

Equations of motion for a damped pendulum

Applet

Introduction

Any stable system when disturbed from its equilibrium position will experience a force, which will act to restore the equilibrium. If the restoring force is greater than that which is required to restore the system to its equilibrium position, then the system is said to be oscillatory.

If the restoring force is proportional to the displacement from the equilibrium position then the system is said to be a Simple Harmonic Oscillator (SHO) and undergoes Simple Harmonic Motion (SHM).

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