Results 71 to 80 of about 53,281 (190)

Probability’s uncertainty in stochastic dynamical control systems

open access: yesRUDN Journal of Engineering Research, 2014
This study applies generalized polynomial chaos theory to dynamic systems with uncertainties.
K A Pupkov, E A Smetanina
doaj  

Local/global non-intrusive coupling strategy for robust design: a first attempt

open access: yesAdvanced Modeling and Simulation in Engineering Sciences
This work investigates how non-intrusive local/global coupling strategies can be applied in the context of robust design. The objective is to propagate uncertainties from the local to the global scale using non-intrusive techniques, in order to estimate ...
Léa Karaouni   +3 more
doaj   +1 more source

Sparse bayesian polynomial chaos approximations of elasto-plastic material models [PDF]

open access: yes, 2017
In this paper we studied the uncertainty quantification in a functional approximation form of elastoplastic models parameterised by material uncertainties.
Matthies, Hermann G., Rosic, Bojana
core  

Multifidelity Uncertainty Quantification of a Commercial Supersonic Transport [PDF]

open access: yes
The objective of this work was to develop a multifidelity uncertainty quantification approach for efficient analysis of a commercial supersonic transport.
Phillips, Ben D., West, Thomas K., IV
core   +1 more source

On the semiclassical expansion for 1-dim $x^N$ potentials

open access: yes, 2000
In the present paper we study the structure of the WKB series for the polynomial potential $V(x)=x^N$ ($N$ even). In particular, we obtain relatively simple recurrence formula of the coefficients $\s'_k$ of the semiclassical approximation and of the WKB ...
Robnik, Marko, Romanovski, Valery
core   +1 more source

Reliability polynomial chaos metamodel for the dynamic behaviour of reinforced concrete bridges

open access: yesAdvances in Bridge Engineering
The approximation of complex engineering problems and mathematical regressions serves as the authentic inspiration behind the artificial intelligence metamodeling methods.
Hicham Lamouri   +2 more
doaj   +1 more source

Stability of Real Parametric Polynomial Discrete Dynamical Systems

open access: yesDiscrete Dynamics in Nature and Society, 2015
We extend and improve the existing characterization of the dynamics of general quadratic real polynomial maps with coefficients that depend on a single parameter λ and generalize this characterization to cubic real polynomial maps, in a consistent theory
Fermin Franco-Medrano   +1 more
doaj   +1 more source

Time- and Frequency-Domain Evaluation of Stochastic Parameters on Signal Lines

open access: yesAdvanced Electromagnetics, 2012
This paper focuses on the derivation of enhanced transmission-line models allowing to describe, in time and frequency domain, a realistic interconnect with the inclusion of external uncertainties, like process variations or routing and layout ...
P. Manfredi   +2 more
doaj   +1 more source

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