Results 41 to 50 of about 79,973 (227)

Estimates for the errors in the Rayleigh-Ritz method [PDF]

Pacific Journal of Mathematics, 1953
with homogeneous linear boundary conditions, denoted by (C). It is assumed that the parameter λ does not appear in the boundary conditions. The region R of the problem may be of any number of dimensions; the symbol ff(P)dP will mean an integral over /?, dP standing for the Euclidean volume element; (/, g) will stand for ff(P)g{P)dP; and ||/||, for (f ...
openaire   +2 more sources

Experimental validation of Lagrange-Rayleigh-Ritz modeling technique for mass loaded actively controlled panels [PDF]

, 2020
This paper describes the validation of a Lagrange-Rayleigh-Ritz technique for the mathematical modeling of mass loaded panels for active control studies.
Rogers, E, Aglietti, GS
core   +1 more source

Traveling wave analysis of rotating functionally graded graphene platelet reinforced nanocomposite cylindrical shells with general boundary conditions

Results in Physics, 2019
This paper studies traveling wave motions of rotating multi-layered functionally graded graphene platelet reinforced composite (FG-GPLRC) cylindrical shell under general boundary conditions.
Zhaoye Qin, Babak Safaei, Xuejia Pang, Fulei Chu   +3 more
doaj   +1 more source

Cluster robust error estimates for the Rayleigh–Ritz approximation I: Estimates for invariant subspaces [PDF]

, 2006
This is the first part of a paper that deals with error estimates for the Rayleigh–Ritz approximations to the spectrum and invariant subspaces of a bounded Hermitian operator in a Hilbert or Euclidean space.
Ovtchinnikov, E.
core   +1 more source

Talent Management: Überblick und konzeptionelle Grundlagen [PDF]

, 2018
Adrian Ritz und Peter Sinelli widmen sich den definitorischen und konzeptionellen Grundlagen des Talent Managements sowie seiner Bezüge zum Prozessmodell des Human Resources Managements.
Sinelli, Peter, Adrian Ritz, Peter Sinelli, Ritz, Adrian   +3 more
core   +1 more source

Effect of End Mass Rotation on the Dynamic Characteristics of a Cantilever Beam Using the Rayleigh-Ritz Principle

NTU Journal of Engineering and Technology
The energy form of the Rayleigh-Ritz Principle was used to investigate the effect of rotating a mass at the free end on the dynamic characteristics of the cantilever beam.
Tahseen Taha Othman
doaj   +1 more source

Approximation of eigenvalues of some unbounded self-adjoint discrete Jacobi matrices by eigenvalues of finite submatrices [PDF]

Opuscula Mathematica, 2007
We investigate the problem of approximation of eigenvalues of some self-adjoint operator in the Hilbert space \(l^2(\mathbb{N})\) by eigenvalues of suitably chosen principal finite submatrices of an infinite Jacobi matrix that defines the operator ...
Maria Malejki
doaj  

Free Transverse Vibration of Circular Plate of Stepped Thickness with General Boundary Conditions by an Improved Fourier–Ritz Method

Shock and Vibration, 2022
In this investigation, free vibration of stepped circular Mindlin plate with arbitrary boundary conditions is presented by an improved Fourier–Ritz method.
Qingjun Hao, Zhaobo Chen, Wenjie Zhai
doaj   +1 more source

On Natural Oscillations of a Thin Elastic Wavy Shell of an Open Profile

Journal of Architectural and Engineering Research, 2021
The article touches upon the problem of natural oscillations of a thin elastic wavy shell of an open profile. The proposed method for determining the numerical values of the lowest frequencies and the corresponding forms of natural oscillations of shells
Victor Dmitriy Eryomin
doaj   +1 more source

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

Advances 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