Finding damping coefficient of material

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SUMMARY

The discussion focuses on determining the damping coefficient of a material using the log decrement method. The log decrement method involves displacing a plate, releasing it, and measuring the displacement over time to observe logarithmic damping behavior. This technique provides a straightforward approach to calculate the damping coefficient effectively. For further details, the Wikipedia page on logarithmic decrement is referenced.

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  • Understanding of vibration analysis principles
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  • Basic knowledge of material properties and damping
  • Ability to conduct experimental measurements of displacement
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srchandran
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i have found the damping factor of a plate from experimental vibration.

how can i find the damping coefficient of the material of the plate
 
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One of the more easy methods is the log decrement method. Basically, you displace the plate, release and measure the displacement as a function of time. The displacement should damp logarithmically which can give you the damping coefficient.

http://en.wikipedia.org/wiki/Logarithmic_decrement
 

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