Results 41 to 50 of about 53,557 (225)

MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS

open access: yesJixie qiangdu, 2022
Reliability is one of important index in the analysis and evaluation of mechanical structure. Aiming at the problems of various failure modes and low efficiency of reliability evaluation for complex mechanical structures, the reliability analysis method ...
WANG ZhiMing   +4 more
doaj  

From wind to loads: wind turbine site-specific load estimation with surrogate models trained on high-fidelity load databases [PDF]

open access: yesWind Energy Science, 2018
We define and demonstrate a procedure for quick assessment of site-specific lifetime fatigue loads using simplified load mapping functions (surrogate models), trained by means of a database with high-fidelity load simulations.
N. Dimitrov   +3 more
doaj   +1 more source

Numerical approximation of poroelasticity with random coefficients using Polynomial Chaos and Hybrid High-Order methods [PDF]

open access: yes, 2019
In this work, we consider the Biot problem with uncertain poroelastic coefficients. The uncertainty is modelled using a finite set of parameters with prescribed probability distribution.
Botti, Michele   +3 more
core   +3 more sources

Vehicle parameter sensitivity with polynomial chaos

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2015
It is interesting to analyze the parameter sensitivity of mathematical models that describe physical systems, and it deserves particular attention the sensitivity study of models with uncertainty in the parameter values.
Eduardo Haro   +2 more
doaj   +1 more source

Calculation of Generalized Polynomial-Chaos Basis Functions and Gauss Quadrature Rules in Hierarchical Uncertainty Quantification [PDF]

open access: yes, 2014
Stochastic spectral methods are efficient techniques for uncertainty quantification. Recently they have shown excellent performance in the statistical analysis of integrated circuits.
Daniel, Luca   +4 more
core   +2 more sources

A Flexible Polynomial Expansion Method for Response Analysis with Random Parameters

open access: yesComplexity, 2018
The generalized Polynomial Chaos Expansion Method (gPCEM), which is a random uncertainty analysis method by employing the orthogonal polynomial bases from the Askey scheme to represent the random space, has been widely used in engineering applications ...
Rugao Gao, Keping Zhou, Yun Lin
doaj   +1 more source

Sensitivity Analysis of Random and Interval Uncertain Variables Based on Polynomial Chaos Expansion Method

open access: yesIEEE Access, 2019
The problem of characterizing the sensitivity indices of structural performance considering random and interval uncertainty variables simultaneously is analyzed.
Chan Qiu   +3 more
doaj   +1 more source

Eigenstates of Operating Quantum Computer: Hypersensitivity to Static Imperfections [PDF]

open access: yes, 2001
We study the properties of eigenstates of an operating quantum computer which simulates the dynamical evolution in the regime of quantum chaos. Even if the quantum algorithm is polynomial in number of qubits $n_q$, it is shown that the ideal eigenstates ...
Benenti, Giuliano   +3 more
core   +2 more sources

Asymptotic expansion for some local volatility models arising in finance [PDF]

open access: yes, 2018
In this paper we study the small noise asymptotic expansions for certain classes of local volatility models arising in finance. We provide explicit expressions for the involved coefficients as well as accurate estimates on the remainders.
ALbeverio, Sergio   +3 more
core   +2 more sources

Identification of ground anchors reliability based on acceptance tests and the polynomial chaos expansion method [PDF]

open access: yesArchives of Civil Engineering
The paper presents a reliability analysis of ground anchors based on acceptance tests and the polynomial chaos expansion method. First of all, it was estimated the probability of meeting the requirements of acceptance tests based on anchor tests realised
Marek Wyjadłowski   +3 more
doaj   +1 more source

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