Uncertainty propagation analysis using sparse grid technique and saddlepoint approximation based on parameterized p-box representation
Sign Up to like & getrecommendations! Published in 2019 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-018-2049-5
Abstract: Uncertainty propagation analysis, which assesses the impact of the uncertainty of input variables on responses, is an important component in risk assessment or reliability analysis of structures. This paper proposes an uncertainty propagation analysis method… read more here.
Keywords: saddlepoint approximation; uncertainty; propagation analysis; analysis ... See more keywords
An interval uncertainty propagation method using polynomial chaos expansion and its application in complicated multibody dynamic systems
Sign Up to like & getrecommendations! Published in 2021 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-021-06512-1
Abstract: This paper is devoted to the construction of a nonintrusive interval uncertainty propagation approach for the response bounds evaluation of multibody systems. The motivation for this effort is twofold. First, the traditional methods using the… read more here.
Keywords: method; complicated multibody; uncertainty propagation; multibody ... See more keywords
Multi-fidelity orbit uncertainty propagation
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2018.10.023
Abstract: Abstract To reduce computation time while limiting loss in accuracy when propagating an orbit state probability density function, this work seeks to develop an adaptive approach to multi-fidelity uncertainty propagation for applications in astrodynamics. Using… read more here.
Keywords: orbit; uncertainty propagation; multi fidelity; fidelity ... See more keywords
Uncertainty propagation analysis for control rod worth of PWR based on the statistical sampling method
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2019.107054
Abstract: Abstract Based on the idea of uncertainty propagation, global relative covariance matrices of few-group cross sections representing the uncertainties propagated from the basic nuclear data and manufacturing tolerance were built by using statistical method. Then… read more here.
Keywords: uncertainty propagation; control rod; uncertainty; sampling method ... See more keywords
A non-intrusive B-splines Bézier elements-based method for uncertainty propagation
Sign Up to like & getrecommendations! Published in 2019 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2018.10.047
Abstract: Abstract A non-intrusive B-Splines Bezier Elements based Method (BSBEM) is proposed as an efficient tool for uncertainty propagation analysis in physical hyperbolic problems. The model’s output response is approximated using a surrogate model whose coefficients… read more here.
Keywords: non intrusive; elements based; intrusive splines; uncertainty ... See more keywords
An image segmentation based algorithm for imaging of slow slip earthquakes
Sign Up to like & getrecommendations! Published in 2018 at "Geodesy and Geodynamics"
DOI: 10.1016/j.geog.2018.04.001
Abstract: Abstract Laboratory experiments next to a variety of observations, especially in subduction zones, have explored the existence of a premonitory stable slow slip growth phase preceding large earthquakes. These phenomena play an important role in… read more here.
Keywords: uncertainty propagation; slip; slow slip; image segmentation ... See more keywords
Model-based prognosis using an explicit degradation model and Inverse FORM for uncertainty propagation
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.1815
Abstract: Abstract In this paper, an analytical method issued from the field of reliability analysis is used for prognosis. The inverse first-order reliability method (Inverse FORM) is an uncertainty propagation method that can be adapted to… read more here.
Keywords: degradation; inverse form; form uncertainty; model ... See more keywords
Modeling, quantification, and mitigation of uncertainty propagation in two-step roundness measurements
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.107530
Abstract: Abstract Error separation (ES) techniques can eliminate the systematic error caused by the rotary table, and thus, overcome the accuracy limit of state-of-the-art roundness instruments. However, up to now, no rigorous and effective approaches are… read more here.
Keywords: propagation; uncertainty; two step; step roundness ... See more keywords
A review of uncertainty propagation in orbital mechanics
Sign Up to like & getrecommendations! Published in 2017 at "Progress in Aerospace Sciences"
DOI: 10.1016/j.paerosci.2016.12.002
Abstract: Abstract Orbital uncertainty propagation plays an important role in space situational awareness related missions such as tracking and data association, conjunction assessment, sensor resource management and anomaly detection. Linear models and Monte Carlo simulation were… read more here.
Keywords: uncertainty; mechanics; orbital mechanics; orbital uncertainty ... See more keywords
Filtering and Uncertainty Propagation Methods for Model-Based Prognosis of Fatigue Crack Growth in Unidirectional Fiber-Reinforced Composites
Sign Up to like & getrecommendations! Published in 2018 at "ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering"
DOI: 10.1061/ajrua6.0000991
Abstract: AbstractPrognosis aims at calculating the remaining useful life (RUL) of a system by estimating its current health state and then predicting its future behavior. In this paper, the prediction of fa... read more here.
Keywords: model based; propagation methods; uncertainty; filtering uncertainty ... See more keywords
Advanced Methodology for Uncertainty Propagation in Computer Experiments with Large Number of Inputs
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Technology"
DOI: 10.1080/00295450.2019.1573617
Abstract: Abstract In the framework of the estimation of safety margins in nuclear accident analysis, a quantitative assessment of the uncertainties tainting the results of computer simulations is essential. Accurate uncertainty propagation (estimation of high probabilities… read more here.
Keywords: methodology; metamodel; large number; computer ... See more keywords