On the Characterization of Dynamic Properties of Random Processes by Spectral Parameters

[+] Author and Article Information
G. Petrucci

Dipartimento di Meccanica e Aeronautica

M. Di Paola

Dipartimento di Ingegneria Strutturale e Geotecnica,e-mail: dipaola@stru.diseg.unipa.it

B. Zuccarello

Dipartimento di Meccanica e Aeronautica, Universita degli Studi di Palermo, 90128 Palermo, Italye-mail: zuccarello@dima.unipa.it

J. Appl. Mech 67(3), 519-526 (May 05, 2000) (8 pages) doi:10.1115/1.1312805 History: Received July 28, 1998; Revised May 05, 2000
Copyright © 2000 by ASME
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PSD of type (a) and PSD of type (b) used in the numerical simulations
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Two-degree-of freedom system considered in the practical example
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PSD of the output displacement process Xw (a) and relative range distribution (b)
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Sample functions of the processes Θ̇X1,Θ̇X2,ȦX1/AX1 coincident with ȦX2/AX2 (a) and Θ̇1 and Θ̇2 (b)
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Power spectral density (PSD) functions SX1 and SX2 (a) and corresponding sample functions y1(t),y2(t),AX1 and AX2 (b).
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Sample functions and range distributions of the process A1 with PSD of type (a) and of the process B1 with PSD of type (b) having both the same parameters αX=0.15 and qX=0.74
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PSDs of the processes A2 and B2 having both αX≈.76,qX≈.47α≈.97 and q≈.20
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Sample functions and range distributions of the process A2 and B2 having the same parameters αX≈.76,qX≈.47,α≈.97 and q≈.20




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