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Structural Engineering and Mechanics Volume 18, Number 1, July 2004 , pages 125-135 DOI: https://doi.org/10.12989/sem.2004.18.1.125 |
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Dynamic and reliability analysis of stochastic structure system using probabilistic finite element method |
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Byung-Young Moon, Gyung-Ju Kang, Beom-Soo Kang and Dae-Seung Cho
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| Abstract | ||
| Industrial structure systems may have nonlinearity, and are also sometimes exposed to the danger of random excitation. This paper proposes a method to analyze response and reliability design of a complex nonlinear structure system under random excitation. The nonlinear structure system which is subjected to random process is modeled by finite element method. The nonlinear equations are expanded sequentially using the perturbation theory. Then, the perturbed equations are solved in probabilistic methods. Several statistical properties of random process that are of interest in random vibration applications are reviewed in accordance with the nonlinear stochastic problem. | ||
| Key Words | ||
| response analysis; modal analysis; multi-DOF system; mdeling of complex system; finite element method; structural vibration. | ||
| Address | ||
| Byung-Young Moo, Gyung-Ju Kang and Beom-Soo Kang; Department of Aerospace Engineering, Pusan National University, Gumjung-ku, Busan 609-735, Korea Dae-Seung Cho; Department of Naval Architecture and Ocean Engineering, Pusan National University, Gumjung-ku, Busan 609-735, Korea | ||