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A frequency domain blind identification method for operational modal analysis using a limited number of sensors
(Sage Publications Ltd, 2020-01-14)
Operational modal analysis is an experimental modal analysis approach, which uses vibration data collected when the structure is under operating conditions. Amongst the methods for operational modal analysis, blind source ...
Simplified computational routine to correct the modal decoupling in transmission lines and power systems modelling
(2013-07-31)
Modal analysis is widely approached in the classic theory of power systems modelling. This technique is also applied to model multiconductor transmission lines and their self and mutual electrical parameters. However, this ...
Potential Application in Energy Harvesting of Intermodal Energy Exchange in a Frame: FEM Analysis
(World Scientific Publ Co Pte Ltd, 2014-12-01)
This paper presents a Finite Element Analysis (FEA) of modal energy exchange and harvesting in a simple portal frame structure. We consider both horizontal and vertical support excitations resonant first with the first ...
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 ...
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 ...
Complex modal analysis of a vertical rotor through finite element method
(2012)
Natural frequencies were analyzed (axial, torsional and flexural) and frequency response of a vertical rotor with a hard disk at the edge through the classical and complex modal analysis. The mathematical modeling was based ...
Data compression for the modal analysis of spatially dense laser Doppler vibrometer measurements
(Soc Experimental MechanicsBethel, 1996)
Decomposição modal de linhas de transmissão a partir do uso de duas matrizes de transformação
(Sociedade Brasileira de Automática, 2007)
MODALITY, ETHOS AND STEREOTYPES IN WOMEN'S FINANCE ADVICE
(Univ Estadual Campinas, Inst Estudos Linguagem, 2019-01-01)
In this work, we analyze the ethos of a self-help book on finances directed specifically to the female audience, in order to reveal the image that the enunciator of the book projects of herself by its mode of enunciation. ...