Page 357 - MATLAB an introduction with applications

342 ——— MATLAB: An Introduction with Applications

0.250000 0.050000 0.816027 –5.408013
0.300000 0.084041 –0.246914 –37.109594
0.350000 0.025309 –1.042791 5.274482
0.400000 –0.020238 –0.006097 36.193308
0.450000 0.024699 0.770130 –5.144248
0.500000 0.056775 –0.240967 –35.299646
0.550000 0.000602 –0.998028 5.017230
0.600000 –0.043028 –0.011896 34.428050
0.650000 –0.000587 0.849928 0.044924
0.700000 0.041965 0.011602 –33.577975
0.750000 0.000573 –0.828943 –0.043815
0.800000 –0.040929 –0.011316 32.748889
0.850000 –0.000559 0.808475 0.042733
0.900000 0.039918 0.011036 –31.940274
0.950000 0.000545 –0.788513 –0.041678
1.000000 –0.038933 –0.010764 31.151626

Figure E6.2(a) shows the response history.

0.1

0.08

0.06
Displacement(m) 0.04

0.02

0

–0.02

–0.04

–0.06
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Time(s)
Fig. E6.2 (a) MATLAB output for ∆∆ ∆∆ ∆t = 0.05s