Chapter1_introduction n Free Vibration
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Transcript of Chapter1_introduction n Free Vibration
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MEC521: Vibration
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What is Vibration?
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What is Vibration?
Scientific Definition Any motion that repeats itself after an
interval of time
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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
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Introduction to Vibration
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Wind induced Vibration
November 7, 1940
The Tacoma Narrows Bridge Disaster
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Turbomachinery
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Other Examples
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What was the cause?
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Desirable Vibrations
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Basic Concepts
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MDOF
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Continuous Media
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Classification of Vibrations
Free
Undamped
Damped
Forced
Undamped
Damped
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Spring elements
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Damping Elements