Fast computing techniques for Bayesian uncertainty quantification in structural dynamics
Fecha
2013Materia
Resumen
A Bayesian probabilistic framework for uncertainty quantification and propagation in structural dynamics is reviewed. Fast computing techniques are integrated with the Bayesian framework to efficiently handle large-order models of hundreds of thousands or millions degrees of freedom and localized nonlinear actions activated during system operation. Fast and accurate component mode synthesis (CMS) techniques are proposed, consistent with the finite element (FE) model parameterization, to achieve drastic reductions in computational effort when performing a system analysis. Additional substantial computational savings are also obtained by adopting surrogate models to drastically reduce the number of full system re-analyses and parallel computing algorithms to efficiently distribute the computations in available multi-core CPUs. The computational efficiency of the proposed approach is demonstrated by updating a high-fidelity finite element model of a bridge involving hundreds of thousands of degrees of freedom. © The Society for Experimental Mechanics, Inc. 2013.
Colecciones
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Position paper of the EACVI and EANM on artificial intelligence applications in multimodality cardiovascular imaging using SPECT/CT, PET/CT, and cardiac CT
Slart R.H.J.A., Williams M.C., Juarez-Orozco L.E., Rischpler C., Dweck M.R., Glaudemans A.W.J.M., Gimelli A., Georgoulias P., Gheysens O., Gaemperli O., Habib G., Hustinx R., Cosyns B., Verberne H.J., Hyafil F., Erba P.A., Lubberink M., Slomka P., Išgum I., Visvikis D., Kolossváry M., Saraste A. (2021)In daily clinical practice, clinicians integrate available data to ascertain the diagnostic and prognostic probability of a disease or clinical outcome for their patients. For patients with suspected or known cardiovascular ... -
Incidental non-cardiac findings of a coronary angiography with a 128-slice multi-detector CT scanner: Should we only concentrate on the heart?
Lazoura, O.; Vassiou, K.; Kanavou, T.; Vlychou, M.; Arvanitis, D. L.; Fezoulidis, I. V. (2010)Objective: To evaluate the spectrum, prevalence, and significance of incidental non-cardiac findings (INCF) in patients referred for a non-invasive coronary angiography using a 128-slice multi-detector CT (MDCT). Materials ... -
Shortening design time through multiplatform simulations with a portable OpenCL golden-model: The LDPC decoder case
Falcao, G.; Owaida, M.; Novo, D.; Purnaprajna, M.; Bellas, N.; Antonopoulos, C. D.; Karakonstantis, G.; Burg, A.; Ienne, P. (2012)Hardware designers and engineers typically need to explore a multi-parametric design space in order to find the best configuration for their designs using simulations that can take weeks to months to complete. For example, ...