Results 81 to 90 of about 108,403 (183)

A Unified Spectro-Geometric-Ritz Method for Vibration Analysis of Open and Closed Shells with Arbitrary Boundary Conditions

open access: yesShock and Vibration, 2016
This paper presents free vibration analysis of open and closed shells with arbitrary boundary conditions using a spectro-geometric-Ritz method. In this method, regardless of the boundary conditions, each of the displacement components of open and closed ...
Dongyan Shi   +4 more
doaj   +1 more source

Quasicomparison Functions and Substructure Synthesis for Framed Structures Stability Analysis

open access: yesLatin 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
doaj   +1 more source

ACCURATE APPROXIMATIONS TO EIGENPAIRS USING THE HARMONIC RAYLEIGH-RITZ METHOD

open access: yes, 2008
Accurate approximations to eigenpairs using the harmonic Rayleigh-Ritz method by Gerard L.G.
Gerard L. G. Sleijpen
core  

On Rayleigh-Ritz Method in Three-Parameter Eigenvalue Problems

open access: yes, 2014
This paper deals with the computation of the eigenvalues of a three-parameter Sturm-Liouville problem in the form of ordinary differential equation using Rayleigh-Ritz Method, a method which is based on the principle of variational methods.
Surashmi Bhattacharyya   +1 more
core  

Optimal a priori error bounds for the Rayleigh-Ritz method [PDF]

open access: yes, 2000
We derive error bounds for the Rayleigh-Ritz method for the approximation to extremal eigenpairs of a symmetric matrix. The bounds are expressed in terms of the eigenvalues of the matrix and the angle between the subspace and the eigenvector.
Sleijpen, G.L.G.   +2 more
core   +1 more source

On the application of the Rayleigh-Ritz method to a projected Hamiltonian [PDF]

open access: yes
We apply the well known Rayleigh-Ritz method (RRM) to the projection of a Hamiltonian operator chosen recently for the extension of the Rayleigh-Ritz variational principle to ensemble states.
Fernández, Francisco M.
core   +1 more source

Optimization of vibration frequencies of rotors via Rayleigh-Ritz method and genetic algorithms

open access: yes, 2008
International audienceThis paper deals with the optimization of vibration frequencies of rotors using Rayleigh-Ritz function approximations in computationally intensive genetic design, in the dynamic field.
Marcelin, Jean-Luc
core  

On the Rayleigh-Ritz method

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

Free and Forced Vibration Analysis of Airtight Cylindrical Vessels with Doubly Curved Shells of Revolution by Using Jacobi-Ritz Method

open access: yesShock 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   +4 more
doaj   +1 more source

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

open access: yesМеханика 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  

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