Results 11 to 20 of about 308,109 (309)
Uncertainties on modal parameters by operational modal analysis [PDF]
Mechanics & Industry, 2014 Lorsqu’on fait une analyse modale opérationnelle sur des structures en fonctionnement, sans connaître les forces de perturbation, ni le nombre de fréquences importantes qui excitent le système mécanique, on doit se poser la question sur la validité de l’estimation des paramètres modaux (notamment le taux d’amortissement) et sur la précision des ...
Vu, Viet-Hung, Thomas, Marc
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Modal control based on direct modal parameters estimation [PDF]
Journal of Vibration and Control, 2017 Modal active control is based on a state model that requires the identification of modal parameters. This identification can typically be done through a rational fraction polynomial algorithm applied in the frequency domain. This method generates numerical problems when estimating high-order models, particularly when moving from the basis of ...
Chomette, Baptiste, Mamou-Mani, Adrien
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Modal parameter identification of a MEMS gyroscope [PDF]
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000 This paper reports the experimental system identification of the Jet Propulsion Laboratory microelectromechanical (MEMS) vibrational rate gyroscope. A high-order two-input/two-output transfer function for the microgyroscope is identified and mapped to a three-mode rigid plate model that reveals the orientation of important vibrational modes.
Robert T. M'Closkey +2 more
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Rules with parameters in modal logic I [PDF]
Annals of Pure and Applied Logic, 2015 67 ...
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Some issues when using Fourier analysis for the extraction of modal parameters [PDF]
, 2009 It is sometimes necessary to determine the manner in which structures deteriorate with respect to time; for instance when quantifying a material's ability to withstand sustained dynamic loads. In such cases, it is well established that loss of structural
Andreas +14 more
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Automation of Experimental Modal Analysis Using Bayesian Optimization
Applied Sciences, 2023 The dynamic characterization of structures by means of modal parameters offers many valuable insights into the vibrational behavior of these structures. However, modal parameter estimation has traditionally required expert knowledge and cumbersome manual
Johannes Ellinger +4 more
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Ambient vibration re-testing and operational modal analysis of the Humber Bridge [PDF]
, 2010 An ambient vibration survey of the Humber Bridge was carried out in July 2008 by a combined team from the UK, Portugal and Hong Kong. The exercise had several purposes that included the evaluation of the current technology for instrumentation and system ...
Abdel-Ghaffar +43 more
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Spatial Information in Autonomous Modal Parameter Estimation
Shock and Vibration, 2014 Recent work with autonomous modal parameter estimation has shown great promise in the quality of the modal parameter estimation results when compared to results from traditional methods by experienced users.
Randall J. Allemang, Allyn W. Phillips
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Shock and Vibration, 2015 Real-time estimation of modal parameters of time-varying structures can conduct an obvious contribution to some specific applications in structural dynamic area, such as health monitoring, damage detection, and vibration control; the recursive algorithm ...
Si-Da Zhou, Li Liu, Wu Yang, Zhi-Sai Ma
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IEEE Access, 2018 In order to facilitate the performance prediction of solar array drive system (SADS) using the scaled-down model approach, a non-proportionally scaled-down model of an SADS is proposed in this paper.
Hong Guo, Tong Zhou, Jinquan Xu
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