Vibratory Motions: Periodic VS. Non-Periodic

Vibration Time History

Basic of Vibrations

  Trigonometric Notation

  Complex Notation

Vibratory Motions:
■Periodic – repeat at regular intervals (e.g., simple harmonic motions, - engines

■Non-periodic – do not repeat at regular intervals (e.g., impulses - blasting;  and long duration transient loads - traffic and earthquakes)