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Category > Management Posted 28 Sep 2017 My Price 5.00

damping coefficient

Consider the system of Problem 1.128 part (a), and compute a new damping coefficient, c, that will cause the vibration to die out after one oscillation.

Problem 1.128 

A mass moves in a fluid against sliding friction as illustrated in Figure P1.128. Model the damping force as a slow fluid (i.e., linear-viscous damping) plus Coulomb friction because of the sliding, with the following parameters: m = 250 kg, μ = 0.01, c = 25 kg/s, and k = 3000 N/m. (a) Compute and plot the response to the initial conditions: x0 = 0.1 m, v0 = 0.1 m/s. (b) Compute and plot the response to the initial conditions: x0 = 0.1 m, 0 = 1 m/s. How long does it take for the vibration to die out in each case?

 

 

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Maurice Tutor
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Status NEW Posted 28 Sep 2017 11:09 PM My Price 5.00

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