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An exact series solution for the vibration analysis of cylindrical shells with arbitrary boundary conditions
(2013-03-01)
In this paper, an exact series solution for the vibration analysis of circular cylindrical shells with arbitrary boundary conditions is obtained, using the elastic equations based on Flügge's theory. Each of the three ...
An exact series solution for the vibration analysis of cylindrical shells with arbitrary boundary conditions
(2013-03-01)
In this paper, an exact series solution for the vibration analysis of circular cylindrical shells with arbitrary boundary conditions is obtained, using the elastic equations based on Flügge's theory. Each of the three ...
Modal decoupling of overhead transmission lines using real and constant matrices: Influence of the line length
(2017-11-01)
The Clarke's matrix is a well-known real and constant transformation matrix used for modal transformation in three-phase transmission lines modeling. Although modal analysis has been widely discussed in the technical ...
Alternative Phase-domain Model for Multi-conductor Transmission Lines Using Two Modal Transformation Matrices
(2016-02-07)
A new model for multi-conductor transmission lines is proposed based on an alternative modal decoupling technique. The line decoupling is accomplished using two modal transformation matrices: the real and constant Clarke's ...
An alternative procedure to decrease the dimension of the frequency dependent modal transformation matrices: Application in three-phase transmission lines with a vertical symmetry plane
(2006-12-01)
The objective of this paper is to show an alternative representation in time domain of a non-transposed three-phase transmission line decomposed in its exact modes by using two transformation matrices. The first matrix is ...
An alternative procedure to decrease the dimension of the frequency dependent modal transformation matrices: Application in three-phase transmission lines with a vertical symmetry plane
(2006-12-01)
The objective of this paper is to show an alternative representation in time domain of a non-transposed three-phase transmission line decomposed in its exact modes by using two transformation matrices. The first matrix is ...
Power Secant Method applied to natural frequency extraction of Timoshenko beam structures
(LATIN AMER J SOLIDS STRUCTURES, 2010)
This work deals with an improved plane frame formulation whose exact dynamic stiffness matrix (DSM) presents, uniquely, null determinant for the natural frequencies. In comparison with the classical DSM, the formulation ...
Decomposição modal de linhas de transmissão a partir do uso de duas matrizes de transformação
(Sociedade Brasileira de Automática, 2007-09-01)
Este artigo mostra um processo alternativo de decomposição modal de linhas de transmissão trifásicas, não idealmente transpostas, que possuem um plano de simetria vertical. O processo baseia-se no uso de duas matrizes de ...
Decomposição modal de linhas de transmissão a partir do uso de duas matrizes de transformação
(Sociedade Brasileira de Automática, 2007-09-01)
Este artigo mostra um processo alternativo de decomposição modal de linhas de transmissão trifásicas, não idealmente transpostas, que possuem um plano de simetria vertical. O processo baseia-se no uso de duas matrizes de ...