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Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)

International Association of Computer Science and Information Technology (IACSIT)
International Association of Computer Science and Information Technology (IACSIT)
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ASME Press
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A new two-factor method based on the probability and the fuzzy sets theory is used for the analysis of the dynamic response of fuzzy-random truss under the stationary stochastic excitation, in which the structural parameters are considered as fuzzy-random variables and the excitation adopted is a stationary random process ground acceleration in horizontal direction. After the fuzzy-random correlation function matrix of structural displacement response in time domain and the fuzzy-random mean square values of structural dynamic response in frequency domain are developed by using the two-factor method, fuzzy numerical characteristics of structural dynamic responses are finally derived. The effects of the uncertainty of the structural parameters on dynamic response are illustrated via an engineering example.

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