Results 271 to 280 of about 308,109 (309)
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FINITE DIFFERENCE FORMULATION FOR MODAL PARAMETER ESTIMATION
Journal of Sound and Vibration, 2000Summary: We deal with a new finite difference method for modal parameter estimation. This method uses formulas which involve differences between the frequency response data at three frequencies in the vicinity of a natural frequency to estimate this natural frequency together with the damping and the residue.
Yin, H. P., Duhamel, D.
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ON THE UNIQUENESS OF MODAL PARAMETER ESTIMATION
Journal of Sound and Vibration, 1996We examine the question of uniqueness of solution to the modal parameter problem by applying a least-squares output error estimator to a six-degree-of-freedom shear building using both a two- and a six-parameter model. Multiple solutions are located by initiating the iterative parameter estimation algorithm from random starting points.
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Extraction of Normal Modes and Full Modal Damping from Complex Modal Parameters
AIAA Journal, 1997The objective is a general damping correction procedure for determining the undamped modal parameters from damped system realization parameters. A discrete-time state-space realization of model test data is obtained using the eigensystem realization algorithm and polyreference, resulting in a set of difference equations. The realization is converted to
Alvin, K. F. +2 more
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Modal parameter estimation using synchrophasors
2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM), 2015The development and diversification of the Uruguayan power electric infrastructure, with the significant incorporation of renewable sources is leading to changes in the operation criteria.With all these efforts to make the power system more efficient and smarter, real-time analysis are becoming more required and necessary.
Agustin Fraschini, Celia Sena
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Modal Parameter Estimation on Automotive Development
SAE Technical Paper Series, 2012<div class="section abstract"><div class="htmlview paragraph">Modal parameter identification is used to identify those parameters of the model which describe the dynamic properties of a vibration system. Structural dynamic methods and technologies have been used with great success by the automotive industry.
Valdinei Sczibor +2 more
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Identification of Modal Parameters of Rotors
1984The occurence of instability in rotating machinery may be caused by different effects: oil film in journal bearings, sealings, internal damping etc.
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Parameter Identifiability Analysis by Modal Methods
IFAC Proceedings Volumes, 1982Abstract Several techniques are available for a priori existence and uniqueness analysis (testing system and parameter identiflability) in the identification of linear models of specified structure from experiments with restricted input and observations.
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Method for determining modal parameters
2019The present invention relates to a method for determining modal parameters of a system under test. The method comprises the steps of - taking a first set of values of output signals obtained under a first loading condition of the system, - determining for said first loading condition a parametric matrix model for the system, said parametric matrix ...
Guillaume, Patrick +3 more
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When CLIP meets cross-modal hashing retrieval: A new strong baseline
Information Fusion, 2023Guohua Dong +2 more
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