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Artykuły w czasopismach na temat "Acoustic-elastic coupling"
Shin, Ye Jeong, Hong Min Seung i Joo Hwan Oh. "Fluid-like elastic metasurface". Applied Physics Letters 122, nr 10 (6.03.2023): 101701. http://dx.doi.org/10.1063/5.0139336.
Pełny tekst źródłaChaplain, Gregory J., Dan Moore, Ian Hooper, Alastair Hibbins, John Sambles i Timothy Starkey. "Beyond-nearest-neighbour metamaterials". Journal of the Acoustical Society of America 154, nr 4_supplement (1.10.2023): A156. http://dx.doi.org/10.1121/10.0023108.
Pełny tekst źródłaGao, Longfei, i David Keyes. "Explicit coupling of acoustic and elastic wave propagation in finite-difference simulations". GEOPHYSICS 85, nr 5 (1.09.2020): T293—T308. http://dx.doi.org/10.1190/geo2019-0566.1.
Pełny tekst źródłaCui, Huaifeng, Rufu Hu i Nan Chen. "Modelling and analysis of acoustic field in a rectangular enclosure bounded by elastic plates under the excitation of different point force". Journal of Low Frequency Noise, Vibration and Active Control 36, nr 1 (marzec 2017): 43–55. http://dx.doi.org/10.1177/0263092317693488.
Pełny tekst źródłaDong, Kaiyuan, Yiwen Lv, Peng Wang, Wei Cheng i Han Li. "Acoustic properties of underwater acoustic metamaterials based on multi-physical field coupling model". Journal of Physics: Conference Series 2713, nr 1 (1.02.2024): 012006. http://dx.doi.org/10.1088/1742-6596/2713/1/012006.
Pełny tekst źródłaNorris, Andrew N., i Douglas A. Rebinsky. "Acoustic coupling to membrane waves on elastic shells". Journal of the Acoustical Society of America 95, nr 4 (kwiecień 1994): 1809–29. http://dx.doi.org/10.1121/1.408688.
Pełny tekst źródłaYoon, Gil Ho. "Unified Analysis with Mixed Finite Element Formulation for Acoustic-Porous-Structure Multiphysics System". Journal of Computational Acoustics 23, nr 01 (16.02.2015): 1550002. http://dx.doi.org/10.1142/s0218396x15500022.
Pełny tekst źródłaDi Bartolo, Leandro, Rosário Romão Manhisse i Cleberson Dors. "Efficient acoustic-elastic FD coupling method for anisotropic media". Journal of Applied Geophysics 174 (marzec 2020): 103934. http://dx.doi.org/10.1016/j.jappgeo.2019.103934.
Pełny tekst źródłaHsiao, Fu-Li, Ying-Pin Tsai, Wei-Shan Chang, Chien-Chang Chiu, Bor-Shyh Lin i Chi-Tsung Chiang. "Photo-Elastic Enhanced Optomechanic One Dimensional Phoxonic Fishbone Nanobeam". Crystals 12, nr 7 (23.06.2022): 890. http://dx.doi.org/10.3390/cryst12070890.
Pełny tekst źródłaMAR-OR, ASSAF, i DAN GIVOLI. "A FINITE ELEMENT STRUCTURAL-ACOUSTIC MODEL OF COUPLED MEMBRANES". Journal of Computational Acoustics 12, nr 04 (grudzień 2004): 605–18. http://dx.doi.org/10.1142/s0218396x04002407.
Pełny tekst źródłaRozprawy doktorskie na temat "Acoustic-elastic coupling"
Nassor, Alice. "Domain decomposition method for acoustic-elastic coupled problems in time-domain. Application to underwater explosions". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAE015.
Pełny tekst źródłaThis work addresses global-in-time domain decomposition approaches for the numerical solution of transient fluid-structure interaction problems. To determine an optimal algorithm, we first study the solvability for the transient acoustic and elastodynamic problems with Robin and Neumann boundary conditions. We state solvability results along with the different space-time regularities of the solutions. We also study the solvability for the transient coupled elastodynamic-acoustic problem. Using on these mathematical results we then propose a global-in-time iterative algorithm based on Robin boundary conditions for the coupled elastodynamicacoustic problem and we prove its convergence.These results are leveraged to design a computational methodology by coupling two efficient numerical methods. The fluid response is formulated in the discrete-time domain, using a Z-BEM approach that combines (i) a boundary element method (BEM) accelerated with hierarchical matrix implemented in the Laplace domain and (ii) a convolution quadrature method. The structure response is modelled using the finite elements method. We thus propose a global-in-time iterative coupling with guaranteed convergence, which enables the use of two distinct numerical methods in a non-intrusive manner.Several improvements are then explored: an acceleration method is implemented and a high-frequency approximation is proposed to improved the Z-BEM efficiency. A second iterative global-in-time coupling based on an acoustic-acoustic interface is then proposed and its convergence is also proved. This coupling enables the addition of non linear effects due to the cavitation phenomenon to derive a more realistic fluid model. The Z-BEM is lastly adapted using the method of images to take a free surface into account.This method is applied on fast-time problems of acoustic shock wave scattering by submerged elastic structures and enables to simulate realistic configurations from naval industry
Hepburn, Carolyna. "Dynamic interplay between the magnetization and surface acoustic waves in magnetostrictive Fe1-xGax thin films". Electronic Thesis or Diss., Paris 6, 2017. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2017PA066622.pdf.
Pełny tekst źródłaRecently, lot of efforts have been devoted to control the magnetization in nanostructures by means other than external magnetic field to achieve device miniaturization, as it is difficult to handle the magnetic field at low lateral dimensions. On the other hand, a new road emerged towards the wave based computing by employing spin waves (SWs). The advantages, that SWs offer for the data processing are nm wavelength as compared to the electromagnetic waves in the same frequency range (GHz-THz) and the absence of Joule heating. A possibility exists to use Surface Acoustic Waves (SAWs), in other words, dynamic strain, to induce magnetization dynamics or to control spin waves. This is possible due to a very fundamental property of magnetic bodies, the magneto-elastic coupling, that is when magnetization orientation and strain are coupled. This thesis focuses on the phenomenology of the magneto-elastic interaction in thin epitaxied films of magnetostrictive Fe0.8Ga0.2. We performed a systematic experimental study of the magneto-elastic interactions in thin films of different thicknesses and magnetic structures. We also developed two phenomenological models in order to interpret our results. An important result of this study is that we are able to extract the magneto-elastic and the magnetic anisotropy constants by acoustic means. The thesis has also a strong technological component. One aim was to efficiently excite surface acoustic waves in GHz frequency range (1-5 GHz) on GaAs piezoelectric substrates in order to observe the resonant interaction with thermal spin waves. We also managed to excite spin waves in thin epitaxied magnetostrictive layers, using RF antennas. We report preliminary measurements on this interaction that were performed with Brillouin light scattering (BLS) and micro BLS techniques in collaboration with the GHOST laboratory in Perugia, Italy
Hepburn, Carolyna. "Dynamic interplay between the magnetization and surface acoustic waves in magnetostrictive Fe1-xGax thin films". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066622/document.
Pełny tekst źródłaRecently, lot of efforts have been devoted to control the magnetization in nanostructures by means other than external magnetic field to achieve device miniaturization, as it is difficult to handle the magnetic field at low lateral dimensions. On the other hand, a new road emerged towards the wave based computing by employing spin waves (SWs). The advantages, that SWs offer for the data processing are nm wavelength as compared to the electromagnetic waves in the same frequency range (GHz-THz) and the absence of Joule heating. A possibility exists to use Surface Acoustic Waves (SAWs), in other words, dynamic strain, to induce magnetization dynamics or to control spin waves. This is possible due to a very fundamental property of magnetic bodies, the magneto-elastic coupling, that is when magnetization orientation and strain are coupled. This thesis focuses on the phenomenology of the magneto-elastic interaction in thin epitaxied films of magnetostrictive Fe0.8Ga0.2. We performed a systematic experimental study of the magneto-elastic interactions in thin films of different thicknesses and magnetic structures. We also developed two phenomenological models in order to interpret our results. An important result of this study is that we are able to extract the magneto-elastic and the magnetic anisotropy constants by acoustic means. The thesis has also a strong technological component. One aim was to efficiently excite surface acoustic waves in GHz frequency range (1-5 GHz) on GaAs piezoelectric substrates in order to observe the resonant interaction with thermal spin waves. We also managed to excite spin waves in thin epitaxied magnetostrictive layers, using RF antennas. We report preliminary measurements on this interaction that were performed with Brillouin light scattering (BLS) and micro BLS techniques in collaboration with the GHOST laboratory in Perugia, Italy
Parpiiev, Tymur. "Ultrafast magneto-acoustics in magnetostrictive materials". Thesis, Le Mans, 2017. http://www.theses.fr/2017LEMA1044/document.
Pełny tekst źródłaWith the advent of femtosecond lasers it became possible to measure how femtosecond optical demagnetization can probe the exchange interaction in ferromagnetic metals. Laser-induced demagnetization of materials with strong magneto-elastic coupling should lead to the release of its build-in strains, thus to the generation of both longitudinal (L) and shear (S) acoustic waves. In this thesis, generation of shear picosecond acoustic pulses in strongly magnetostrictive materials such as Terfenol is processed analytically and shown experimentally. In case of Terfenol with strong magneto-crystalline anisotropy, laser induced demagnetostriction is responsible for S excitation. First, the phenomenological model of direct magnetostriction in a Terfenol monocrystalline film is developed. The shear strain generation efficiency strongly depends on the orientation of the film magnetization. Time-resolved linear MOKE pump-probe experiments show that transient laser-induced release of the magnetoelastic strains lead to the excitation of GHz L and S acoustic waves. These results are the first experimental observation of picosecond shear acoustic wave excitation by laser-induced demagnetostriction mechanism. Second, the interaction of an optically generated L acoustic pulse with the magnetization of a Terfenol thin film is reported. Arrival of the picosecond strain wave alters a change of its magnetization and leads to acoustic mode conversion, which is another pathway of shear acoustic wave generation. The frequency bandwidth of the generated acoustic pulses matches the demagnetization timescale and lies in the range of several hundreds of GHz, close to 1 THz
Yevstafyev, Oleksandr. "Instabilité explosive des ondes magneto-élastiques". Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00607191.
Pełny tekst źródłaCzęści książek na temat "Acoustic-elastic coupling"
deGroot-Hedlin, Catherine, i John Orcutt. "T-phase Observations in Northern California: Acoustic to Seismic Coupling at a Weakly Elastic Boundary". W Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Hydroacoustics, 513–30. Basel: Birkhäuser Basel, 2001. http://dx.doi.org/10.1007/978-3-0348-8270-5_5.
Pełny tekst źródłaEberle, Sarah. "FEM-BEM Coupling of Wave-Type Equations: From the Acoustic to the Elastic Wave Equation". W Trends in Mathematics, 109–24. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47174-3_7.
Pełny tekst źródłaBentarki, Houda, Abdelkader Makhoute i Tőkési Karoly. "Signatures of the Mode Symmetries in Sapphire PhoXonic Cavities". W Advances in Systems Analysis, Software Engineering, and High Performance Computing, 108–17. IGI Global, 2023. http://dx.doi.org/10.4018/979-8-3693-0497-6.ch007.
Pełny tekst źródła"8. Coupling of acoustic and elastic waves in phononic crystals". W Phononic Crystals, 255–71. De Gruyter, 2020. http://dx.doi.org/10.1515/9783110641189-008.
Pełny tekst źródłaStreszczenia konferencji na temat "Acoustic-elastic coupling"
Krenz, Lukas, Carsten Uphoff, Thomas Ulrich, Alice-Agnes Gabriel, Lauren S. Abrahams, Eric M. Dunham i Michael Bader. "3D acoustic-elastic coupling with gravity". W SC '21: The International Conference for High Performance Computing, Networking, Storage and Analysis. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3458817.3476173.
Pełny tekst źródłaNesemann, L. "Numerical Acoustic-elastic Coupling and Curved Boundaries for RTM". W 76th EAGE Conference and Exhibition 2014. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20141185.
Pełny tekst źródłaBartolo*, Leandro Di, Ana Paula Gomes Vieira, Cleberson Dors i Webe João Mansur. "Memory optimized acoustic-elastic FD coupling for offshore seismic simulations". W SEG Technical Program Expanded Abstracts 2015. Society of Exploration Geophysicists, 2015. http://dx.doi.org/10.1190/segam2015-5905882.1.
Pełny tekst źródłaDi Bartolo, Leandro, Cleberson Dors i Webe João Mansur. "An efficient and simple acoustic-elastic FD coupling for offshore seismic simulations". W SEG Technical Program Expanded Abstracts 2012. Society of Exploration Geophysicists, 2012. http://dx.doi.org/10.1190/segam2012-1320.1.
Pełny tekst źródłaFilipe, M., i T. Ha-Duong. "A Coupling of FEM-BEM for Elastic Structure in a Transient Acoustic Field". W 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/detc1995-0393.
Pełny tekst źródłaShepard, W. Steve, Kenneth A. Cunefare i Jerry H. Ginsberg. "Identifying Critical Elastic Scales in Structural-Acoustic Models". W 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/detc1995-0415.
Pełny tekst źródłaWillemsen, Bram, i Alison Malcolm. "Coupling a local elastic solver to a background acoustic model to estimate phase variation". W SEG Technical Program Expanded Abstracts 2016. Society of Exploration Geophysicists, 2016. http://dx.doi.org/10.1190/segam2016-13867595.1.
Pełny tekst źródłaMuhlestein, Michael B., Benjamin M. Goldsberry, Caleb F. Sieck i Michael R. Haberman. "Analytical and Numerical Investigation of Scattering From Bianisotropic Acoustic Media". W ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72672.
Pełny tekst źródłaYang, Mingsui, Yanting Ai i Song Xiang. "Coupling of FEM and Exterior/Interior Acoustic Field with BEM and Numerical Simulation of Vibro-Acoustic Response of Elastic Target". W 2010 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA 2010). IEEE, 2010. http://dx.doi.org/10.1109/icmtma.2010.534.
Pełny tekst źródłaBotelho, Rui M. "Computing Resonant Frequencies and Coupled Mode-Shapes of Structural-Acoustic Systems Using the Finite Element Method". W ASME 2008 Noise Control and Acoustics Division Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ncad2008-73017.
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