Logarithmic Decrement - CE 573: Structural Dynamics...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CE 573: Structural Dynamics Logarithmic Decrement – Matlab Example >> u1 = udata(2) (Located from the plot.) u1 = 96.5749 >> u2 = udata(10) (Located from the plot.) u2 = 83.9971 >> delta = log(u1/u2) 1 log , 1. k k u k u + ⎛⎞ == ⎜⎟ ⎝⎠ delta = 0.1395
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
>> xi = delta/sqrt(delta^2 + 4*pi^2) xi = 0.0222 >> Td = (10-2)*0.25 (Recall that t for each sample is 0.25.) Td = 2 >> w = (2*pi)/(Td*sqrt(1-xi^2)) w = 3.1424
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/09/2008 for the course CE 573 taught by Professor Whalen during the Fall '05 term at Purdue University-West Lafayette.

Page1 / 2

Logarithmic Decrement - CE 573: Structural Dynamics...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online