Results 11 to 20 of about 62,230 (267)
Applied Mechanics, 2022 Modal parameter identification can be a valuable tool in mechanical engineering to predict vibrational behaviour and avoid machine damage during operation.
Mona Amer +2 more
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Applied Sciences, 2022 In order to obtain better vibration response data and improve the accuracy of results in large-span steel beam modal tests, this paper proposes an optimization strategy for the arrangement of measurement points on large-span steel beams.
Jian Zhao +4 more
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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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A New Maximum Likelihood Estimator Formulated in Pole-Residue Modal Model
Applied Sciences, 2019 Recently, a lot of efforts have been devoted to developing more precise Modal Parameter Estimation (MPE) techniques. This is explained by the necessity in civil, mechanical and aerospace engineering of obtaining accurate estimates for the modal ...
Sandro Amador +3 more
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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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Numerical Assessment of Building Vibration Techniques Using Laboratory Models [PDF]
Port Said Engineering Research Journal, 2022 Experimental Modal Analysis (EMA) is one of the most attractive engineering fields nowadays, which specifies in the studies of modal parameters of existing small buildings under forced vibrations.
moataz Elrayes +2 more
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Sensors, 2015 The measurement of the internal deformations occurring in real-life composite components is a very challenging task, especially for those components that are rather difficult to access. Optical fiber sensors can overcome such a problem, since they can be
Alfredo Lamberti +5 more
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Structural Damage Identification Using a Modified Directional Bat Algorithm
Applied Sciences, 2021 Bat algorithm (BA) has been widely used to solve optimization problems in different fields. However, there are still some shortcomings of standard BA, such as premature convergence and lack of diversity.
Yonghui Su, Lijun Liu, Ying Lei
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Experimental research on the vibration characteristics of canvas and primed canvas of paintings [PDF]
Archive of Mechanical Engineering, 2023 Paintings inevitably bear severe mechanical loads during transportation.Understanding the dynamic characteristics of paintings helps to avoid damage during transportation and to effectively slow down their aging.In this contribution, the vibration ...
Yulong Gao +4 more
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Distributed Parameter Modal Sensors.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1996 This paper deals with distributed parameter sensors designed with a view to extracting a vibration mode. Compared to conventional point-type sensors such as acceleration pickups, displacement sensors etc., the distributed parameter sensors have many benefits provided that they are properly designed.
Nobuo TANAKA +3 more
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