Results 71 to 80 of about 749 (184)

Quasicomparison Functions and Substructure Synthesis for Framed Structures Stability Analysis

Latin American Journal of Solids and Structures
The Rayleigh-Ritz-Meirovitch substructure synthesis method (RRMSSM) is extended to buckling analysis in framed structures. The objective is a computational procedure capable of yielding very accurate critical loads through solution of very-low-order ...
J. I. Colombo, C. A. Morales
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On the application of the Rayleigh–Ritz method to a projected Hamiltonian

Journal of Mathematical Chemistry
We apply the well known Rayleigh-Ritz method (RRM) to the projection of a Hamiltonian operator chosen recently for the extension of the variational principle to ensemble states. By means of a toy model we show that the RRM eigenvalues approach to those of the projected Hamiltonian from below.
openaire   +2 more sources

Bending and Deformation of Sandwich Panels Due to Localized Pressure

ITB Journal of Engineering Science, 2005
Bending and deformation of sandwich panels due to localized pressure were analyzed using both Rayleigh-Ritz and finite element methods. The faces were made of laminated composite plates, while the core was a honeycomb material.
Bambang K. Hadi, A. Fajar
doaj  

An Analysis of Nonlinear Axisymmetric Structural Vibrations of Circular Plates with the Extended Rayleigh–Ritz Method

Mathematics
The nonlinear deformation and vibrations of elastic plates represent a fundamental problem in structural vibration analysis, frequently encountered in engineering applications and classical mathematical studies.
Jie Han, Xianglin Gong, Chencheng Lian, Huimin Jing, Bin Huang, Yangyang Zhang, Ji Wang   +6 more
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Free and Forced Vibration Analysis of Airtight Cylindrical Vessels with Doubly Curved Shells of Revolution by Using Jacobi-Ritz Method

Shock and Vibration, 2017
This paper presents free and forced vibration analysis of airtight cylindrical vessels consisting of elliptical, paraboloidal, and cylindrical shells by using Jacobi-Ritz Method.
Fuzhen Pang, Haichao Li, Kwangnam Choe, Dongyan Shi, Kwanghun Kim   +4 more
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AXISYMMETRIC FREE VIBRATION OF THIN PROLATE SPHEROIDAL SHELLS

Journal of Engineering, 2006
In this paper a detailed study of the theory of free axisymmetric vibration of thin isotropic prolate spheroidal shells is presented. The analysis is performed according to Rayleigh – Ritz method. This method as well as an approximate modeling technique
Ahmed A. Hassan, Ala M. Hussein, Mohammed J. Obaid   +2 more
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Elliptic Spline Functions and the Rayleigh-Ritz-Galerkin Method [PDF]

Mathematics of Computation, 1970
Error estimates for the Rayleigh-Ritz-Galerkin method, using finite-dimensional spline type spaces, for a class of nonlinear two-point boundary value problems are discussed. The results of this paper extend and improve recent corresponding results of B. L. Hulme, F. M. Perrin, H. S. Price, and R. S. Varga.
openaire   +2 more sources

Rayleigh-Ritz variational method in the complex plane

Physica Scripta
Abstract We present a systematic study of the Rayleigh–Ritz variational method for quantum oscillators in the Segal–Bargmann space. We rigorously derive the normalizability condition
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INFLUENCE OF THE LENGHTS RATIO TO THE STATIC ANSWER IN THE MOVEMENT OF A ROAD DECK [PDF]

Fiabilitate şi Durabilitate, 2017
The article presents a method to obtaining the static response bridge-vehicle system in displacements,and the influence of the lengths ratio of the deck bridge on this response.
Ovidiu GAVRIŞ
doaj  

Free Vibration Analysis of Cylindrical Shell from Fiberglass with Navier Boundary Conditions

Механика машин, механизмов и материалов, 2011
The analytical solution of approximate natural frequencies for the free vibration of cylindrical shells of GFRP (glass fiber reinforced plastic) with Navier boundary conditions is presented using the Rayleigh-Ritz method, while the winding angle varies ...
S.M. Bosiakov , W. Zhiwei
doaj