Question

In a viscous damped vibration the logarithmic decrement value over the five cycle is found tobe 8.11.what is the viscous damping factor for vibratory system

Answer 1

Answer:

25%

Explanation:

Answer 2

Answer:

The logarithmic decrement of viscous damped vibration is given as,

where, ωn = natural frequency and we can write and

Calculation:

Given:

n = 5, δ = 8.11

Therefore,

∴ ξ = 0.25 = 25%

Explanation:

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