Stochastic Dynamics of Structures by El Hami Abdelkhalak; Radi Bouchaib; & Bouchaib Radi

Author:El Hami, Abdelkhalak; Radi, Bouchaib; & Bouchaib Radi
Language: eng
Format: epub
Publisher: John Wiley & Sons, Incorporated
Published: 2016-11-30T19:58:22+00:00

Figure 5.3. Average FRF for the paired problem. For a color version of the figure, see www.iste.co.uk/elhami/stochasticdynamics.zip

Figure 5.4. Standard deviation of FRF for the paired problem. For a color version of the figure, see www.iste.co.uk/elhami/stochasticdynamics.zip

Table 5.10. Calculation time of moments of FRF for the paired problem

Approach 1 Approach 2 Approach 3

CPU time 14 min 425 ms 1 s

In light of this last test, it is notable that the Muscolino distortion method is more effective and above all it better reaches the reference solution.

EXAMPLE 5.3.–

This test [BEN 08] is dedicated to the reliable stochastic modal study of a paired system composed of a block of steel with dimension (l×b×h), clamped on one side and submerged in a bowl of water with dimension (L×B×H) and whose surface is assumed free. The diagram and data of the problem are presented in Figure 5.5 and Table 5.11, respectively. The finite element calculation was done using ANSYS®, while statistical treatment was carried out using MATLAB®.

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