Results 21 to 30 of about 7,268 (236)

Polynomial Chaos-Based Tolerance Analysis of Microwave Planar Guiding Structures [PDF]

open access: yes, 2011
This paper focuses on the derivation of an enhanced transmission-line model allowing to describe a realistic microwave interconnect with the inclusion of external uncertainties, like tolerances or process variations. The proposed method, that is based on
Paolo Manfredi   +3 more
core   +1 more source

Comparison of Stochastic Methods for the Variability Assessment of Technology Parameters [PDF]

open access: yes, 2011
This paper provides and compares two alternative solutions for the simulation of cables and interconnects with the inclusion of the effects of parameter uncertainties, namely the Polynomial Chaos (PC) method and the Response Surface Modeling (RSM).
Stievano, Igor Simone   +7 more
core   +1 more source

Performance of non-intrusive uncertainty quantification in the aeroservoelastic simulation of wind turbines [PDF]

open access: yesWind Energy Science, 2019
The present paper characterizes the performance of non-intrusive uncertainty quantification methods for aeroservoelastic wind turbine analysis. Two different methods are considered, namely non-intrusive polynomial chaos expansion and Kriging.
P. Bortolotti   +4 more
doaj   +1 more source

Airfoil Robust Optimization Based on Convolutional Neural Network and Polynomial Chaos Method

open access: yesHangkong gongcheng jinzhan, 2021
In conventional airfoil optimization design method, the aerodynamic performance of the optimal airfoil can deteriorate at the non-design point, so it is necessary to study the airfoil robust optimization method.An airfoil robustness design method based ...
GAO Yuan   +4 more
doaj   +1 more source

Performance of Modal Signaling vs. medium dielectric variability [PDF]

open access: yes, 2012
This paper addresses the feasibility of the so-called Modal Signaling (MS) transmission scheme from a stochastic viewpoint. MS has been proposed for crosstalk mitigation over interconnects and is based on the encoding of signals onto fundamental ...
Stievano, Igor Simone   +5 more
core   +1 more source

Polynomial Chaos Expansion mit räumlich adaptiven Sparse Grids [PDF]

open access: yes, 2020
Die Polynomial Chaos Expansion (generalized Polynomial Chaos) ist eine Methode aus der Uncertainty Quantification. Mit ihr können die stochastischen Momente einer Funktion R, deren Parameter gemäß Verteilungsfunktionen verteilt sind, schnell berechnet ...
Albrecht, Thomas
core   +1 more source

UNCERTAINTY EVALUATION METHOD FOR NONLINEAR SYSTEM TEST BASED ON POLYNOMIAL CHAOS EXPANSION

open access: yesJixie qiangdu, 2022
The uncertainty analysis of test results of nonlinear system shows the dispersion of test results. In this paper, an evaluation method of test uncertainty of nonlinear system based on polynomial chaos expansion is suggested.
YU HuiJie   +5 more
doaj  

Optimized sparse polynomial chaos expansion with entropy regularization

open access: yesAdvances in Aerodynamics, 2022
Sparse Polynomial Chaos Expansion (PCE) is widely used in various engineering fields to quantitatively analyse the influence of uncertainty, while alleviating the problem of dimensionality curse.
Sijie Zeng   +3 more
doaj   +1 more source

A posteriori error estimation for stochastic static problems [PDF]

open access: yes, 2014
To solve stochastic static field problems, a discretization by the Finite Element Method can be used. A system of equations is obtained with the unknowns (scalar potential at nodes for example) being random variables. To solve this stochastic system, the
MAC, Hung, CLENET, Stephane
core   +1 more source

Data-driven sparse polynomial chaos expansion for models with dependent inputs

open access: yesJournal of Safety Science and Resilience, 2023
Polynomial chaos expansions (PCEs) have been used in many real-world engineering applications to quantify how the uncertainty of an output is propagated from inputs by decomposing the output in terms of polynomials of the inputs.
Zhanlin Liu, Youngjun Choe
doaj   +1 more source

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