Results 11 to 20 of about 11,091,462 (126)

THE APPROXIMATE SOLUTION FOR PLATES USING MODIFIED RAYLEIGH-RITZ METHOD

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2017
For thin elastic plates of arbitrary shape with a smooth pinched or hinged contour based on the modified Rayleigh-Ritz method, explicit expressions are obtained for the approximate values of the maximum deflection from a uniformly distributed load, the ...
Gaik A. Manuylov
doaj   +3 more sources

Free Vibration Analysis of Arbitrary-Shaped Plates Based on the Improved Rayleigh–Ritz Method

open access: yesAdvances in Civil Engineering, 2019
In this investigation, an improved Rayleigh–Ritz method is put forward to analyze the free vibration characteristics of arbitrary-shaped plates for the traditional Rayleigh–Ritz method which is difficult to solve.
Wenjie Guo, Qingsong Feng
doaj   +2 more sources

Vibration analysis of nanorods by the Rayleigh-Ritz method and truncated Fourier series

open access: yesResults in Physics, 2019
A solution procedure applicable for analyzing the free longitudinal vibration of nanorods is presented in this study. The longitudinal displacement of the nanorod is sought as a linear combination of a Fourier series and auxiliary trigonometric functions.
Siyuan Bao, Jinrui Cao, Shuodao Wang
doaj   +2 more sources

On the Rayleigh-Ritz variational method [PDF]

open access: yes, 2023
We give a simple proof of the well known fact that the approximate eigenvalues provided by the Rayleigh-Ritz variational method are increasingly accurate upper bounds to the exact ones.
Fernández, Francisco M.
core   +1 more source

The Rayleigh–Ritz method, refinement and Arnoldi process for periodic matrix pairs [PDF]

open access: yes, 2011
We extend the Rayleigh–Ritz method to the eigen-problem of periodic matrix pairs. Assuming that the deviations of the desired periodic eigenvectors from the corresponding periodic subspaces tend to zero, we show that there exist periodic Ritz values that
Zhongxiao Jia   +9 more
core   +1 more source

Energy methods for curved composite beams with partial shear interaction

open access: yesCurved and Layered Structures, 2015
This paper presents a derivation of the Rayleigh- Betti reciprocity relation for layered curved composite beams with interlayer slip. The principle of minimum of potential energy is also formulated for two-layer curved composite beams and its ...
Ecsedi István, Lengyel Ákos József
doaj   +1 more source

On the plastic buckling of curved carbon nanotubes

open access: yesTheoretical and Applied Mechanics Letters, 2020
This research, for the first time, predicts theoretically static stability response of a curved carbon nanotube (CCNT) under an elastoplastic behavior with several boundary conditions. The CCNT is exposed to axial compressive loads.
Mohammad Malikan
doaj   +1 more source

Sound-vibration behaviors of the thin orthotropic rectangular fluid–structure coupled system resting on varying elastic Winkler and Pasternak foundations

open access: yesResults in Physics, 2018
This paper establishes a thin orthotropic rectangular fluid–structure coupled system which effectively studies the sound-vibration behaviors. The established coupled system is made up of an acoustic enclosure filled with air or water and a single ...
Hong Zhang   +3 more
doaj   +1 more source

Independent coordinate coupling method for vibration analysis of a functionally graded carbon nanotube–reinforced plate with central hole

open access: yesAdvances in Mechanical Engineering, 2019
In this article, the free vibration of a functionally graded carbon nanotube–reinforced plate with central hole is investigated by means of the independent coordinates-based Rayleigh–Ritz method.
Yan Guo, Yanan Jiang, Bin Huang
doaj   +1 more source

Free vibration of arbitrary-shaped laminated triangular thin plates with elastic boundary conditions

open access: yesResults in Physics, 2018
This paper studies the free vibration of arbitrary shaped laminated triangular thin plates based on a modified Fourier series method. An arbitrary shaped triangular plate is mapped into a right-angled isosceles triangular plate with unit length by the ...
Xiuhai Lv, Dongyan Shi
doaj   +1 more source

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