Forced Vibration

Forced vibration occurs when a system experiences a continuous, external periodic force that causes it to oscillate at a specific frequency. Imagine pushing a swing at regular intervals—the swing responds by moving back and forth. When the force's frequency matches the natural frequency of the system, the vibrations can amplify significantly, leading to large oscillations. This phenomenon is relevant in engineering and physics, affecting everything from building stability to machinery operation. Proper understanding and control of forced vibrations are essential to prevent damage or failure due to resonance effects.