Results 31 to 40 of about 53,261 (170)

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

Stability for Receding-horizon Stochastic Model Predictive Control [PDF]

open access: yes, 2015
A stochastic model predictive control (SMPC) approach is presented for discrete-time linear systems with arbitrary time-invariant probabilistic uncertainties and additive Gaussian process noise.
Mesbah, Ali   +2 more
core   +1 more source

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

Uncertainty quantification for fat-tailed probability distributions in aircraft engine simulations [PDF]

open access: yes, 2017
Rare event simulation is vital for industrial design because some events, so-called black swans, can have fatal consequences despite their low probability of occurrence.
Ahlfeld, R   +3 more
core   +1 more source

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

Recent advances in polynomial chaos method for uncertainty propagation

open access: yesZhongguo Jianchuan Yanjiu, 2021
Uncertainty exists widely in engineering design. As one of the key components of engineering design, uncertainty propagation and quantification has always been an important research topic.
Fenfen XIONG   +4 more
doaj   +1 more source

Stochastic macromodeling of nonlinear systems via polynomial chaos expansion and transfer function trajectories [PDF]

open access: yes, 2014
A novel approach is presented to perform stochastic variability analysis of nonlinear systems. The versatility of the method makes it suitable for the analysis of complex nonlinear electronic systems. The proposed technique is a variation-aware extension
De Jonghe, Dimitri   +5 more
core   +2 more sources

Limitations of polynomial chaos expansions in the Bayesian solution of inverse problems

open access: yes, 2014
Polynomial chaos expansions are used to reduce the computational cost in the Bayesian solutions of inverse problems by creating a surrogate posterior that can be evaluated inexpensively.
Chorin, Alexandre J.   +3 more
core   +1 more source

Polynomial Chaos Expansion of random coefficients and the solution of stochastic partial differential equations in the Tensor Train format

open access: yes, 2015
We apply the Tensor Train (TT) decomposition to construct the tensor product Polynomial Chaos Expansion (PCE) of a random field, to solve the stochastic elliptic diffusion PDE with the stochastic Galerkin discretization, and to compute some quantities of
Dolgov, Sergey   +3 more
core   +1 more source

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