MEC521: Vibration

What is Vibration?

What is Vibration?

Scientific Definition Any motion that repeats itself after an

interval of time

What is Vibration?

Scientific Definition

Engineering Definition

Any motion that repeats itself after an

interval of time

Deals with the relationship between forces

and oscillatory motion of mechanical

systems

Introduction to Vibration

Wind induced Vibration

November 7, 1940

The Tacoma Narrows Bridge Disaster

Turbomachinery

Other Examples

What was the cause?

Desirable Vibrations

Basic Concepts

MDOF

Continuous Media

Classification of Vibrations

Free

Undamped

Damped

Forced

Undamped

Damped

Spring elements

Damping Elements