Bayesian estimation of spatially varying soil parameters with spatiotemporal monitoring data

HQ Yang, L Zhang, Q Pan, KK Phoon, Z Shen - Acta Geotechnica, 2021 - Springer
The characterization of in situ ground conditions is essential for geotechnical practice. The
probabilistic estimation of soil parameters can be achieved via updating with monitoring …

Surrogate models for oscillatory systems using sparse polynomial chaos expansions and stochastic time warping

CV Mai, B Sudret - SIAM/ASA Journal on Uncertainty Quantification, 2017 - SIAM
Polynomial chaos expansions (PCEs) have proven efficiency in a number of fields for
propagating parametric uncertainties through computational models of complex systems …

Surrogate modeling for stochastic dynamical systems by combining nonlinear autoregressive with exogenous input models and polynomial chaos expansions

CV Mai, MD Spiridonakos, EN Chatzi… - … Journal for Uncertainty …, 2016 - dl.begellhouse.com
The application of polynomial chaos expansions (PCEs) to the propagation of uncertainties
in stochastic dynamical models is well-known to face challenging issues. The accuracy of …

Probabilistic analysis of highly nonlinear models by adaptive sparse polynomial chaos: Transient infiltration in unsaturated soil

HQ Yang, Y Yan, X Wei, Z Shen… - International Journal of …, 2023 - World Scientific
Polynomial chaos expansion (PCE) is widely adopted in geotechnical engineering as a
surrogate model for probabilistic analysis. However, the traditional low-order PCE may be …

A hybrid anchored-ANOVA–POD/Kriging method for uncertainty quantification in unsteady high-fidelity CFD simulations

L Margheri, P Sagaut - Journal of Computational Physics, 2016 - Elsevier
To significantly increase the contribution of numerical computational fluid dynamics (CFD)
simulation for risk assessment and decision making, it is important to quantitatively measure …

On the extension of a Fourier descriptor based method for planar four-bar linkage synthesis for generation of open and closed paths

J Wu, QJ Ge, F Gao, WZ Guo - 2011 - asmedigitalcollection.asme.org
In an earlier work, we have presented an efficient method for synthesizing crank-rocker
mechanisms that are capable of generating perceptually simple and smooth low harmonic …

[PDF][PDF] Polynomial chaos expansions for uncertain dynamical systems. Applications in earthquake engineering

CV Mai - IBK Bericht, 2018 - research-collection.ethz.ch
In modern science and engineering, the consideration of uncertainties has become
indispensable. The framework of uncertainty quantification, which aims at identifying …

Modelling uncertainty in incompressible flow simulation using Galerkin based generalized ANOVA

S Chakraborty, R Chowdhury - Computer Physics Communications, 2016 - Elsevier
This paper presents a new algorithm, referred to here as Galerkin based generalized
analysis of variance decomposition (GG-ANOVA) for modelling input uncertainties and its …

Numerical method and bifurcation analysis of Jeffcott rotor system supported in gas journal bearings

J Zhang, W Kang, Y Liu - 2009 - asmedigitalcollection.asme.org
From the viewpoint of nonlinear dynamics, the stability and bifurcation of the rotor dynamical
system supported in gas bearings are investigated. First, the dynamical model of gas …

Dynamic behaviour of a wind turbine gear system with uncertainties

M Beyaoui, M Tounsi… - Comptes …, 2016 - comptes-rendus.academie-sciences …
Wind energy is one of the most efficient renewable energies. Wind turbines harvest the
kinetic energy of air and convert it into a usable power such as electricity power. For this, the …