Results 1 to 10 of about 3,846 (183)

Small Sample-Based Fatigue Reliability Analysis Using Non-Intrusive Polynomial Chaos [PDF]

open access: yesIEEE Access, 2020
Based on small sample of fatigue test data, a new method to obtain p-S-N curve for fatigue reliability analysis using non-intrusive polynomial chaos (NIPC) is proposed to lower test cost.
Xiaoran Liu, Qin Sun
doaj   +4 more sources

Non intrusive polynomial chaos-based stochastic macromodeling of multiport systems [PDF]

open access: yes2014 IEEE 18th Workshop on Signal and Power Integrity (SPI), 2014
We present a novel technique to efficiently perform the variability analysis of electromagnetic systems. The proposed method calculates a Polynomial Chaos-based macromodel of the system transfer function that includes its statistical properties.
Antonini, G   +4 more
core   +3 more sources

Surrogate models for the blade element momentum aerodynamic model using non-intrusive polynomial chaos expansions [PDF]

open access: yesWind Energy Science, 2022
In typical industrial practice based on IEC standards, wind turbine simulations are computed in the time domain for each mean wind speed bin using a few unsteady wind seeds.
R. Haghi, C. Crawford
doaj   +4 more sources

Data fusion for Uncertainty Quantification with Non-Intrusive Polynomial Chaos

open access: yesComputer Methods in Applied Mechanics and Engineering, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nick Pepper   +2 more
openaire   +6 more sources

Uncertainty quantification of computational fluid dynamics-based predictions for fractional flow reserve and wall shear stress of the idealized stenotic coronary [PDF]

open access: yesFrontiers in Cardiovascular Medicine, 2023
IntroductionIn clinical practice, hemodynamics-based functional indices, such as fractional flow reserve (FFR) and wall shear stress (WSS), are useful in assessing the severity and risk of rupture of atherosclerotic lesions. Computational fluid dynamics (
Nghia Nguyen Ho   +3 more
doaj   +2 more sources

Study on precision reliability evaluation method of harmonic drive based on NIPCE considering wear [PDF]

open access: yesScientific Reports
A dynamic reliability evaluation method for precision of harmonic drive considering wear is proposed to estimate the precision reliability of harmonic drive precisely for precision degradation failure prediction and proactive maintenance.
Xian Zhang   +4 more
doaj   +2 more sources

Non-intrusive uncertainty quantification in structural-acoustic systems using polynomial chaos expansion method [PDF]

open access: yesMATEC Web of Conferences, 2017
A framework of non-intrusive polynomial chaos expansion method (PC) was proposed to investigate the statistic characteristics of the response of structural-acoustic system containing random uncertainty.
Wang Mingjie   +4 more
doaj   +2 more sources

Data-Based Prediction and Stochastic Analysis of Entrained Flow Coal Gasification under Uncertainty [PDF]

open access: yesSensors, 2019
Entrained flow gasification is a commonly used method for conversion of coal into syngas. A stable and efficient operation of entrained flow coal gasification is always desired to reduce consumption of raw materials and utilities, and achieve higher ...
Iftikhar Ahmad   +3 more
doaj   +2 more sources

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

Empirical Assessment of Non-Intrusive Polynomial Chaos Expansions for High-Dimensional Stochastic CFD Problems

open access: yesAerospace, 2023
Uncertainties in the atmosphere and flight conditions can drastically impact the performance of an aircraft and result in certification delays. However, uncertainty propagation in high-fidelity simulations, which have become integral to the design ...
Nikhil Iyengar   +2 more
doaj   +1 more source

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