Bibliografías temáticas / Vibrations non-linéaire de plaque

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Literatura académica sobre el tema "Vibrations non-linéaire de plaque"

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Publicado: 1 de febrero de 2025
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Vibrations non-linéaire de plaque"

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Nakai, Kumiko, Hideki Tanaka, Kyoko Fukuzawa, et al. "Effects of Electric-Toothbrush Vibrations on the Expression of Collagen and Non-Collagen Proteins through the Focal Adhesion Kinase Signaling Pathway in Gingival Fibroblasts." Biomolecules 12, no. 6 (2022): 771. http://dx.doi.org/10.3390/biom12060771.

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Electric-toothbrush vibrations, which remove plaque, are transmitted to the gingival connective tissue via epithelial cells. Physical energy affects cell function; however, the effects of electric-toothbrush vibrations on gingival extracellular matrix (ECM) protein expression remain unknown. We aimed to examine the effects of these vibrations on the expression of ECM proteins—type I collagen (col I), type III collagen (col III), elastin, and fibronectin (FN)—using human gingival fibroblasts (HGnFs). HGnFs were seeded for 5 days in a six-well plate with a hydrophilic surface, exposed to electri
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Thomas, Olivier, Liviu Nicu, and Cyril Touzé. "Flambage et vibrations non-linéaires d'une plaque stratifiée piézoélectrique. Application à un capteur de masse MEMS." Mécanique & Industries 10, no. 3-4 (2009): 311–16. http://dx.doi.org/10.1051/meca/2009057.

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MacRitchie, Neil, Gianluca Grassia, Jonathan Noonan, Paul Garside, Duncan Graham, and Pasquale Maffia. "Molecular imaging of atherosclerosis: spotlight on Raman spectroscopy and surface-enhanced Raman scattering." Heart 104, no. 6 (2017): 460–67. http://dx.doi.org/10.1136/heartjnl-2017-311447.

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To accurately predict atherosclerotic plaque progression, a detailed phenotype of the lesion at the molecular level is required. Here, we assess the respective merits and limitations of molecular imaging tools. Clinical imaging includes contrast-enhanced ultrasound, an inexpensive and non-toxic technique but with poor sensitivity. CT benefits from high spatial resolution but poor sensitivity coupled with an increasing radiation burden that limits multiplexing. Despite high sensitivity, positron emission tomography and single-photon emission tomography have disadvantages when applied to multipl
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Cimetière, Alain, Aziz Hamdouni, and Olivier Millet. "Le modèle linéaire usuel de plaque déduit de l'élasticité non linéaire tridimensionnelle." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy 326, no. 3 (1998): 159–62. http://dx.doi.org/10.1016/s1251-8069(99)89002-2.

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WATZKY, A. "VIBRATIONS LIBRES DES CORDES EN RÉGIME NON-LINÉAIRE : MODÈLE BIDIMENSIONNEL." Le Journal de Physique Colloques 51, no. C2 (1990): C2–857—C2–860. http://dx.doi.org/10.1051/jphyscol:19902199.

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Rahmani, Leila. "Conditions aux limites approchées pour une plaque mince non linéaire." Comptes Rendus Mathematique 343, no. 1 (2006): 57–62. http://dx.doi.org/10.1016/j.crma.2006.04.013.

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Millet, Olivier, Aziz Hamdouni, and Alain Cimetière. "Justification du modèle bidimensionnel non linéaire de plaque par développement asymptotique des équations d'équilibre." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy 324, no. 6 (1997): 349–54. http://dx.doi.org/10.1016/s1251-8069(99)80045-1.

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Himpens, F. X., P. Aguettaz, C. Gautier, J. P. Pruvo, and X. Leclerc. "Quantification de la néovascularisation intra-plaque par échographie non linéaire avec injection d’un agent de contraste échographique : une nouvelle approche de la plaque vulnérable." Journal of Neuroradiology 39, no. 1 (2012): 41. http://dx.doi.org/10.1016/j.neurad.2012.01.123.

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Daya, El Mostafa, Lahcen Azrar, and Michel Potier-Ferry. "Modélisation par éléments finis des vibrations non-linéaires des plaques sandwich viscoélastiques." Mécanique & Industries 6, no. 1 (2005): 13–20. http://dx.doi.org/10.1051/meca:2005002.

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Azeem, Muhammad, Ambreen Afzal, Saqib Ali Jawa, Arfan Ul Haq, Mahwish Khan, and Husnain Akram. "Effectiveness of electric toothbrush as vibration method on orthodontic tooth movement: a split-mouth study." Dental Press Journal of Orthodontics 24, no. 2 (2019): 49–55. http://dx.doi.org/10.1590/2177-6709.24.2.049-055.oar.

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Abstract Objective: To investigate the effects of application of vibratory stimuli, using an electric toothbrush, on the rate of orthodontic tooth movement during maxillary canine retraction. Methods: A split-mouth study was conducted in 28 subjects (mean age = 20.8 years; ranging from 18 to 24 years) whose bilateral maxillary first premolars were extracted with subsequent canine retraction. On the Vibration side, light force (100 g) was applied to the canine for 90 days, in combination with vibratory stimuli provided by an electric toothbrush; only orthodontic force was applied to the canine
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Tesis sobre el tema "Vibrations non-linéaire de plaque"

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Pennetier, Olivier. "Interaction structures - détonations atténuation des efforts retransmis et étude de la réponse dynamique non linéaire de voiles minces." Orléans, 1998. http://www.theses.fr/1998ORLE2061.

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Ce travail, articule autour de trois axes principaux - étude théorique, numérique et expérimentale - concerne la réponse dynamique non linéaire de plaques circulaires métalliques minces face a une sollicitation agressive : la détonation. Ce mode d'explosion est déterministe et le champ de pression engendre, transitoire et de très forte intensité, est fonction de l'espace et du temps. Sous cet impact, la structure évolue rapidement vers les domaines particuliers de la non-livraison géométrique ou de la non-linearite matérielle (plasticité, viscoplasticité). La phase de modélisation numérique fa
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2

Humbert, Thomas. "Turbulence d'ondes dans les plaques minces en vibration : étude expérimentale et numérique de l'effet de l'amortissement." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066512/document.

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Turbulence d’ondes dans les plaques minces en vibration : étude expérimentale et numérique de l’effet de l’amortissement La théorie de turbulence d'ondes a pour but de décrire le comportement à long terme de systèmes faiblement non linéaires hors équilibre. Pour les plaques minces en vibration, ce formalisme permet de prédire un spectre de Kolmogorov-Zakharov (KZ) avec un flux d'énergie transféré des échelles d'injection à celles de dissipation le long d’une fenêtre de transparence. Les études expérimentales antérieures à cette thèse ont mis en lumière des différences notables entre les spectr
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Couineaux, Audrey. "Modélisation vibro-acoustique du cristal Bashet : jouabilité et timbre du son produit par frottement." Electronic Thesis or Diss., Le Mans, 2024. https://cyberdoc-int.univ-lemans.fr/Theses/2024/2024LEMA1036.pdf.

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Le cristal Baschet est un instrument de musique conçu par les frères Baschet dans les années1950. Les sons émis par cet instrument résultent de vibrations induites par le frottement,causées par l’interaction entre les doigts humides du musicien et des tiges de verre. Chaquetige est reliée à un résonateur constitué d’un assemblage de poutres, dont les caractéristiquesdynamiques fixent la hauteur de la note. Les vibrations sont ensuite transmises à de grandes etfines plaques métalliques qui jouent le rôle d’éléments rayonnants. La fabrication et le réglage del’instrument s’appuient principalemen
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Salem, Amgad Mohamed. "Amortissement visqueux et non linéaire au sein des assemblages structuraux métaliques et composites : essais en flexion sous vide." Toulouse 3, 2002. http://www.theses.fr/2002TOU30086.

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Xiang, Yan. "Un modèle de plaque en élasticité linéaire et non linéaire : convergence du développement asymptotique de la plaque élastique non linéaire." Paris 6, 1989. http://www.theses.fr/1989PA066519.

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On décrit, en général, par plaque encastrée un modèle de plaque qui a les cotes latéraux fixes. Or, dans la réalité, une plaque encastrée a toujours une partie voisine près de la cote qui est fixée aussi. D'ou l'idée de plaque réellement encastrée. Nous établissons tels modèles de plaque dans le cadre de l'élasticité linéaire et non linéaire en utilisant la méthode de développement asymptotique appliquée à la formulation variationnelle. Nous verrons alors que les difficultés résident au calcul de la troisième colonne du tenseur des contraintes de piola-kirchhoff. Apres avoir établi de tels mod
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Pantz, Olivier. "Quelques problèmes de modélisation en élasticité non linéaire." Paris 6, 2001. http://www.theses.fr/2001PA066190.

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Faiz, Adil. "Amortissement vibratoire et anéchoïsme par traitement non-linéaire d'éléments piézoélectriques." Lyon, INSA, 2006. http://theses.insa-lyon.fr/publication/2006ISAL0027/these.pdf.

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Les thématiques du LGEF englobent le développement des matériaux adaptatifs et de systèmes électroactifs. Les amortisseurs semi-passifs piézoélectriques constituent à ce titre l'une des déclinaisons les plus récentes de ces travaux. Dans ce cadre, une technique originale appelée SSD (Synchronized Switch Damping) a été développée en s'articulant sur un traitement non linéaire de la tension générée par les éléments piézoélectriques. Cette technique d'une grande universalité permet d'augmenter significativement les performances de systèmes d'amortissement de structures, de concevoir des éléments
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Monteil, Mélodie. "Comportement vibratoire du steelpan : effet des procédés de fabrication et dynamique non linéaire." Phd thesis, Palaiseau, École nationale supérieure de techniques avancées, 2013. http://pastel.archives-ouvertes.fr/pastel-00913650.

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Cette étude porte sur le steeldrum, aussi appelé steelpan, percussion mélodique de Trinidad et Tobago, fabriquée à partir de bidons métalliques dont une des faces subit un ensemble de déformations irréversibles afin d'obtenir une cuve principale à l'intérieur de laquelle sont façonnées les différentes notes de l'instrument. Cette thèse s'organise autour de deux axes. D'une part les processus de fabrication sont étudiés afin de mieux comprendre le travail du facteur et de proposer une modélisation de la première étape de fabrication. D'autre part, des études vibratoires sont menées sur l'instru
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Meurdefroid, Anthony. "Dynamique des structures assemblées - Amortissement non linéaire." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST029.

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Cette thèse s'inscrit dans des travaux liés aux problématiques des structures assemblées. Après une analyse et une synthèse des différentes échelles de modélisation mises en jeu afin de déterminer l'amortissement dans les liaisons, le manuscrit met en évidence les changements d'échelles, soient les réductions de modèle. La résolution des problèmes de vibration non-linéaire mettent en jeu de nombreuses méthodes numériques. Le cadre de la thèse étant le régime permanent, l'équilibrage harmonique est la méthode clé, couplée à une résolution originale de type point fixe. En fonction du cas d'étude
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Watzky, Alexandre. "Sur la vibration non linéaire des fils précontraints (cordes, verges tendues)." Paris 6, 1992. http://www.theses.fr/1992PA066369.

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L'étude des vibrations des verges (ou des cordes) tendues est particulièrement riche par la multitude de phénomènes mis en jeu (non-linéarités, couplages de modes, amortissements. . . ). Partant d'une revue historique rappelant les diverses contributions depuis le traité de Rayleigh et permettant de préciser les phénomènes expliqués ainsi que les limites des modèles existants, on établit un modèle dynamique de verge plus général. Ce modèle non linéaire est construit à partir des équations locales de la mécanique des milieux continus, dans le cadre général des rotations et déplacements finis, s
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Capítulos de libros sobre el tema "Vibrations non-linéaire de plaque"

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Smirnov, Andrei L., and Grigory P. Vasiliev. "Vibration Control of a Non-homogeneous Circular Thin Plate." In Recent Approaches in the Theory of Plates and Plate-Like Structures. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-87185-7_20.

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Tonetti, Agata, and Massimo Rossetti. "Wood Snoezelen. Multisensory Wooden Environments for the Care and Rehabilitation of People with Severe and Very Severe Cognitive Disabilities." In The Urban Book Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-29515-7_89.

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AbstractThe paper wants to present the progress of a research project focused on the study and design of a Snoezelen room made with wooden components. “Snoezelen” refers to closed environments capable of stimulating the senses in people with severe intellectual disabilities and non-self-sufficient people. Within these environments, multisensory stimulation takes place through various equipment and instruments such as optical fibers, water-powered light columns, systems for the reproduction of sounds or vibrations, and materials with different surface treatments. Many studies and researches hav
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Onitsuka, Seita, Ayato Endo, Jumpei Kuroda, et al. "Fundamental Consideration of Stiffness Switching Control for Suppressing Vibration of Flexible Steel Plates During Magnetic Levitation." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2025. https://doi.org/10.3233/saem250030.

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Flexible steel plates used in home appliances and other products are conveyed using rollers, which deteriorates the surface of the plates. One way of solving this problem is non-contact gripping and conveying using magnetic levitation. In the proposed magnetic levitation system, electromagnets are placed only at the edges of the flexible steel plates. Levitation is possible using this system. However, vertical vibrations are generated owing to various vibration modes caused by the deflection of the flexible steel plate. Consequently, the flexible steel plate may fall off. Therefore, we propose
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Cao, Fulai, Xiaomei You, Long Cui, and Zhaoming Liu. "Research on Automatic Liquid Level Measurement System for Nonferrous Metal Ingot Line." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220499.

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Non-ferrous metals play an important role in the national economy, and more and more attention has been paid to their efficient large-scale production. However, the non-ferrous metal production plant environment is bad, the ingot line vibration is violent, the surface of the metal solution also has strong reflective, these adverse factors lead to the automatic detection of the level measurement process in the non-ferrous metal production is very difficult, have to retain a large number of manual links. In order to solve the above problems, an automatic measurement system of non-ferrous metal s
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Mukhopadhyay, Premangshu. "Analysis of Performance Characteristics by Firefly Algorithm-Based Electro Discharge Machining of SS 316." In Machine Learning Applications in Non-Conventional Machining Processes. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3624-7.ch004.

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The process of combining two or more non-conventional machining processes to obtain the required machining performance is known as hybridisation. Hybrid electro discharge machining came into the picture of macro machining due to the requirement of more rapid machining process with improved efficiency of non-conventional machining process. The technique of vibration assisted EDM process did not prove to be successful due to some disadvantages like increase in tool wear for low melting and comparatively softer tool material. Therefore, a need for more advanced hybridised process has been realize
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Bose, Tanmoy, N. S. V. N. Hanuman, and Subhankar Roy. "Non-Destructive Testing of Carbon Fibre Reinforced Polymer (CFRP) Composite Using Thermosonic Technique." In Handbook of Research on Developments and Trends in Industrial and Materials Engineering. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1831-1.ch015.

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Composite materials are often subjected to low velocity impacts which leads to delamination in subsequent layers. Linear ultrasound-based approaches are not accurate enough to detect it properly. The local defect resonance (LDR) based thermosonic is proved to be an efficient candidate for detection of such defects. LDR frequency excitation leads to high amplitude vibration which raises defect temperature drastically, detectable by an infrared camera. In this chapter, a numerical investigation of LDR frequency excited ultrasound thermography is carried out on delaminated carbon fibre reinforced
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Lohar, Hareram, Anirban Mitra, and Sarmila Sahoo. "Effect of Boundary Conditions and Taper Patterns on Geometrically Nonlinear Frequency Response of Axially Graded Beams on Elastic Foundation." In Handbook of Research on Advancements in Manufacturing, Materials, and Mechanical Engineering. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4939-1.ch006.

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Forced vibration analysis is performed on a tapered axially functionally graded beam resting on elastic foundation under externally applied harmonic excitations to present the effect of boundary conditions and taper patterns on the frequency response. The elastic foundation is modelled in the present analysis as Winkler foundation. A displacement based semi-analytical method is adopted for mathematical formulation and the derivation of governing equations is carried out following Hamilton's principle. Von Karman nonlinear strain-displacement relation employed to incorporate geometric nonlinear
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Actas de conferencias sobre el tema "Vibrations non-linéaire de plaque"

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Brown, Avery, Ben Beck, Micah Shepherd, et al. "Circular Acoustic Black Holes Integrated into Carbon/Epoxy Stiffened Panels for Noise Control." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1245.

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Carbon fiber reinforced epoxy composite stiffened panels are increasingly being used for structural components in large transport rotorcraft. However, problems are arising with high levels of vibration and interior noise due to the increased stiffness-to-density ratio of composites. The current investigation explores the potential of reducing vibrations in carbon/epoxy stiffened panels with the integration of acoustic black holes (ABH), namely features that incorporate a power law thickness taper. The proposed approach involves designing a taper into the thickness of the blade stiffeners as we
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Niwa, S., Y. Gao, and Y. Gotoh. "Non-Contact Measurement of Defect in the Backside of Steel Plate by Electromagnetic Force Vibration." In 2024 27th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2024. https://doi.org/10.23919/icems60997.2024.10920962.

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Kotek, Lubos, Michal Holub, Jan Vetiska, Zdenek Hadas, and Petr Blecha. "Non-Invasive Displacement Measurement of Lightweight Structures Under Dynamic Excitations." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37559.

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The present article deals with the processing of data obtained by non-invasive measurement methods of instantaneous displacement of lightweight structures. This data is necessary to evaluate tuning-up of characteristics of an electro-magnetic vibration energy harvester, which is used for energy harvesting from these ambient mechanical vibrations. The electro-magnetic vibration energy harvester is device for powering of low power consumption wireless sensors without any external source of energy. The primary source of energy is only mechanical vibrations in place of wireless sensor and the oper
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Batista, F. B., A. T. Fabro, L. F. Cóser, J. R. F. Arruda, E. L. Albuquerque, and E. P. Tomasini. "IN-PLANE MODAL TESTING OF A FREE ISOTROPIC PLATE USING LASER DOPPLER VIBROMETER MEASUREMENTS." In 9TH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER AND NON-CONTACT TECHNIQUES AND SHORT COURSE. AIP, 2010. http://dx.doi.org/10.1063/1.3455475.

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Ashour, Osama N., and Ali H. Nayfeh. "Nonlinear Adaptive Vibration Absorber for the Control of Plate Vibrations." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/vib-21470.

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Abstract A nonlinear adaptive vibration absorber to control the vibrations of flexible structures is investigated. The absorber is based on the saturation phenomenon associated with dynamical systems possessing quadratic nonlinearities and a two-to-one internal resonance. The technique is implemented by coupling a second-order controller with the structure’s response through a sensor and an actuator. Energy is exchanged between the structure and the controller and, near resonance, the structure’s response saturates to a small value. Experimental results are presented for the control of a recta
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Okada, Kenji, Ken-ichi Nagai, Shinichi Maruyama, and Takao Yamaguchi. "Effects of a Concentrated Mass on Chaotic Vibrations of a Clamped Circular Plate With Initial Deformation." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48271.

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Experimental results are presented on effects of a concentrated mass on chaotic vibrations of a clamped circular plate. The plate has initial deformation due to initial deflection and initial in-plane compressive constraint at the boundary. The concentrated mass is attached on the center of the plate. Under periodic excitation, non-periodic responses with dynamic snap-through are generated on the plates. The responses are inspected by the Fourier spectrum, the Poincare´ projection, the maximum Lyapunov exponents and the principal component analysis. The non-periodic responses are found to be c
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Dreier, Florian, Thorsten Pfister, and Jürgen Czarske. "Monitoring of Blade Vibrations and Tip Clearance at Non-Metallic Rotors in Turbo Machines." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69540.

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In order to improve the safety, the lifetime and the energy efficiency of turbo machines, the dynamic behaviour of the rotor has to be analysed and optimized. Thus, rotor unbalances, dynamic deformations and blade vibrations as well as blade tip clearance changes have to be monitored during operation to optimize the rotor design and to validate numerical models. However, these are great challenges for metrology, since small, robust and non-contact measurement techniques are required offering both micrometer accuracy and microsecond temporal resolution which is not fulfilled with currently avai
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Rothberg, Steven J., and Neil A. Halliwell. "Application of Laser Vibrometry to Vibration Measurement on Rotating Components." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0720.

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Abstract This paper describes the application of Laser Doppler Vibrometry to vibration measurements on rotating targets. The noise generating mechanism of the laser speckle phenomenon is first explained before confirmation of the insensitivity of measurements to target shape. The principal focus of the paper is on the fundamental limitation associated with the use of Laser Vibrometers for radial vibration measurements directly on rotating components. In such measurements significant cross-sensitivities to speed fluctuations, including torsional vibrations, and in-plane vibrations are evident,
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Ramachandran, Maya, Shashank Bezgam, Lonny L. Thompson, John C. Ziegert, Timothy B. Rhyne, and Steven M. Cron. "On the Effects of Edge Scalloping for Collapsible Spokes in a Non-Pneumatic Wheel During High Speed Rolling." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11342.

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The acoustic signature produced by non-pneumatic wheels with collapsible spokes is a critical design criterion for automotive and other mobility applications. During high speed rolling, acoustic noise may be produced by the interaction of vibrating spokes with a shear deformable ring as they enter the contact region, buckle and then snap back into a state of tension. In order to identify and help understand the causes of acoustic noise for a rolling non-pneumatic wheel, a two-dimensional finite element model with geometric nonlinearity has been utilized. The model consists of a shear ring mode
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Emamgholizadeh, Mohammad Javad, Ahmad Reza Mostafa Gharabaghi, Karim Abedi, and Mohammad Hossein Sedaaghi. "An Experimental Study on the Effect of Splitter Plate Angle on the VIV Behavior of Submarine Pipeline on an Erodible Bed Under Clear Water Condition." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10636.

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Pipeline is an appropriate method for transmission of oil and gas from seabed hydrocarbon reservoir to the land and platform or any other place where it is needed. Free spans in the line may occur initially by an uneven seabed or be created later due to under-scouring. Vortex Induced Vibration (VIV) may occur in these free spans at high Reynolds’ numbers. Resonance can occur if the frequency of vortex shedding is close to the pipeline’s natural frequency. Otherwise, it can cause pipeline’s fatigue leading to its breakage and consequently economical and environmental losses. In literature, diff
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