Results 21 to 30 of about 8,042 (262)

Numerical solution of the Duffing equation with random coefficients [PDF]

open access: yes, 2015
The main aim of this work is numerical solution of the nonlinear vibrations of micro-resonators exhibiting bounded and Gaussian uncertainty in their parameters. The mechanical response in deterministic situation is described by the Duffing equation,
Alberto Corigliano   +3 more
core   +1 more source

Homogenization of fiber-reinforced composites with random properties using the weighted least squares response function approach

open access: yesArchives of Mechanics, 2011
The main aim of the paper is a determination of the basic probabilistic characteristics for the effective elasticity tensor of the periodic fiber-reinforced composites, using the generalized stochastic perturbation technique.
M. Kamiński
doaj   +1 more source

Numerical Approximation of Higher-Order Solutions of the Quadratic Nonlinear Stochastic Oscillatory Equation Using WHEP Technique

open access: yesJournal of Applied Mathematics, 2013
This paper introduces higher-order solutions of the stochastic nonlinear differential equations with the Wiener-Hermite expansion and perturbation (WHEP) technique.
Mohamed A. El-Beltagy   +1 more
doaj   +1 more source

Stochastic Analysis of Cylindrical Shell

open access: yesTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2014
The paper deals with some chosen aspects of stochastic structural analysis and its application in the engineering practice. The main aim of the study is to apply the generalized stochastic perturbation techniques based on classical Taylor expansion with ...
Grzywiński Maksym, Pokorska Iwona
doaj   +1 more source

Shift of bifurcation point due to noise induced parameter

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
The object of the paper is to see the effect of small stochastic parametric perturbation on a nonlinear interacting system exhibiting Hopf bifurcation. The method is based on the technique of Markov diffusion approximation.
Sandip Banerjee   +2 more
doaj   +1 more source

Spectral analysis of the stochastic time-fractional-KdV equation

open access: yesAlexandria Engineering Journal, 2018
A numerical solution of the stochastic fractional order Korteweg-de Vries equation arising in oceanography and plasma physics is approximated using a novel spectral/finite difference tool.
Ayesha Sohail, Farid Chighoub, ZhiWu Li
doaj   +1 more source

Power allocation in cooperative sensor networks: a stochastic approximation approach

open access: yesThe Journal of Engineering, 2015
A power allocation technique based on simultaneous perturbation stochastic approximation is devised for wireless sensor networks. Power is such allocated in source and relay that at receiver the desired combined signal strength is attained. The behaviour
Mohammad Abdul Azim, Zeyar Aung
doaj   +1 more source

Antenna array calibration methods based on simultaneous perturbation

open access: yesIET Microwaves, Antennas & Propagation, 2022
Antenna arrays have gained significant interest in millimetre‐wave communication systems as an enabling technology to achieve higher capacity and mitigate the high propagation loss.
Huijuan Xing   +8 more
doaj   +1 more source

Structural Safety of the Steel Hall under Dynamic Excitation Using the Relative Probabilistic Entropy Concept

open access: yes, 2022
This work aimed to analyze the reliability of a steel hall that was recently erected in central Poland subjected to dynamic wind excitation using the stochastic finite element method.
Kamiński, Marcin   +3 more
core   +1 more source

Stochastic finite element analysis of the free vibration of non-uniform beams with uncertain material

open access: yesJournal of Materials and Engineering Structures, 2022
This paper deal with the stochastic finite element method for investigating the eigenvalues of free vibration of non-uniform beams due to a random field of elastic modulus.
Nhung Thi NGUYEN   +3 more
doaj  

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