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System response with random imperfections in coefficients on the space of realizations
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SYSNO ASEP 0510730 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title System response with random imperfections in coefficients on the space of realizations Author(s) Náprstek, Jiří (UTAM-F) RID, ORCID, SAI
Fischer, Cyril (UTAM-F) RID, SAI, ORCIDNumber of authors 2 Source Title Proceedings of Computational mechanics 2019. - Plzeň : University of West Bohemia, 2019 / Adámek V. ; Jonášová A. ; Plánička S. ; Zajíček M. - ISBN 978-80-261-0889-4 Pages s. 138-141 Number of pages 4 s. Publication form Medium - C Action Conference with international participation Computational mechanics 2019 Event date 04.11.2019 - 06.11.2019 VEvent location Srní Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords noisy signal ; filtration ; random imperfections Subject RIV JM - Building Engineering OECD category Civil engineering R&D Projects GA19-21817S GA ČR - Czech Science Foundation (CSF) Institutional support UTAM-F - RVO:68378297 Annotation The contribution is concerned with the analysis of the simultaneous effect of a random perturbation and a white noise in the coefficient of the system. The excitation of the system of the 1-st order is described by the sum of a deterministic signal and an additive white noise which is partly correlated with the parametric noise. The random perturbation in the parameter is considered as a statistics in a set of realizations. It reveals that the density of probability of perturbations must be limited in the phase space, otherwise the system would lose the stochastic stability in probability. The width of the permissible zone depends heavily on the intensity of the parametric noise, the extent of correlation with the additive excitation noise and the type of probability density. The general explanation is demonstrated on cases of normal, uniform and truncated normal densities of probability. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2020
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