Results 231 to 240 of about 8,042 (262)

Stochastic thermal buckling analysis of laminated plates using perturbation technique

Composite Structures, 2016
Abstract Composites are known to display a considerable amount of scatter in their material properties due to large number of parameters involved with the manufacturing and fabrication processes. This paper is concerned with the effect of random system properties on critical thermal buckling temperature of composite laminated plates with temperature ...
Jinqiang Li, Xinpeng Tian, Zhijun Han
exaly   +2 more sources

The stochastic second-order perturbation technique in the finite difference method

Communications in Numerical Methods in Engineering, 2001
AbstractThe main idea of the paper is to introduce the second‐order perturbation second probabilistic moment extension of the finite difference method (FDM). The approach can be successfully applied to all these engineering analyses where FDM modelling is still useful and some structural parameters are treated as random variables or fields.
Marcin Kaminski
exaly   +2 more sources

Response Probability Analysis of Random Acoustic Field Based on Perturbation Stochastic Method and Change-of-Variable Technique

Journal of Vibration and Acoustics, Transactions of the ASME, 2013
To calculate the probability density function of the response of a random acoustic field, a change-of-variable perturbation stochastic finite element method (CVPSFEM), which integrates the perturbation stochastic finite element method (PSFEM) and the change-of-variable technique in a unified form, is proposed.
Baizhan Xia, Dejie Yu, Xia Baizhan
exaly   +2 more sources

Optimization of a smooth flat plate solar air heater using stochastic iterative perturbation technique

Solar Energy, 2011
Abstract Due to low heat transfer capability, the thermal efficiency of solar collectors is very low and various techniques are implemented to increase the performance of solar air heaters. There is a need for optimization of design and operating parameters for maximizing the thermal gain from the solar air heating systems. In this paper a stochastic
Naveen Sharma, D Grover
exaly   +2 more sources

Random Eigenvibrations of Elastic Structures by the Response Function Method and the Generalized Stochastic Perturbation Technique

Archives of Civil and Mechanical Engineering, 2009
This paper addresses the important question in structural analysis how to efficiently model the eigenvibrations of the spatial structures with random physical and/or geometrical parameters. The entire computational methodology is based on the traditional Finite Element Method enriched with the stochastic perturbation technique in its generalized nth ...
M.M. Kamiński, J. Szafran
exaly   +2 more sources

Stochastic hybrid perturbation technique-based smoothed finite element-statistical energy method for mid-frequency analysis of structure–acoustic systems with parametric and nonparametric uncertainties

Computer Methods in Applied Mechanics and Engineering, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
F Wu, T Y Wang, Lingyun Yao
exaly   +2 more sources

Reliability of some axisymmetric shell structure by the response function method and the generalized stochastic perturbation technique

, 2016
M Kamiński, B Pokusiński
openaire   +2 more sources

Uncertainty Analysis for Overhead Powerlines by the Generalized Stochastic Perturbation Technique

Journal of Aerospace Engineering, 2021
AbstractThe main aim of this work is to investigate some design uncertainties on the static response of powerline cables.
Marcin Kamiński, Rafał Bredow
openaire   +1 more source

A simulation technique for estimation in perturbed stochastic activity networks

SIMULATION, 1992
We are concerned with what-if analysis in estimating the expected value and the distribution function of completion time in stochastic activity networks. Widely used Monte Carlo simulation models of stochastic networks are often subject to errors caused by the estitnated parameter(s) of underlying input distribution function.
Veena G. Adlakha, Hossein Arsham
openaire   +1 more source

Using Stochastically Perturbed Parameterizations to Represent Model Uncertainty. Part II: Comparison with Existing Techniques in an Operational Ensemble

Monthly Weather Review, 2022
Abstract The ability of a stochastically perturbed parameterization (SPP) approach to represent uncertainties in the model component of the Canadian Global Ensemble Prediction System was demonstrated in Part I of this investigation. The goal of this second step in SPP evaluation is to determine whether the scheme represents a viable alternative to the ...
Ron McTaggart-Cowan, Leo Separovic, Martin Charron, Xingxiu Deng, Normand Gagnon, Pieter L. Houtekamer, Alain Patoine   +6 more
openaire   +1 more source