Trees as large-scale natural phononic crystals: Simulation and experimental verification
International Soil and Water Conservation Research, 2019 Urban trees are usually planted on a periodic layout in the spatial configuration. We regard urban trees as large-scale natural phononic crystals. The entire forest is reduced to a reasonable “tree-soil” unit cell based on the phononic crystal theory and
Jiankun Huang, Yifan Liu, Yaguang Li
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Two-Dimensional Phononic Crystal Simulation and Analysis
, 2008 I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public.
Ryan Christopher Norris
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Plane Wave-Perturbative Method for Evaluating the Effective Speed of Sound in 1D Phononic Crystals
Advances in Materials Science and Engineering, 2016 A method for calculating the effective sound velocities for a 1D phononic crystal is presented; it is valid when the lattice constant is much smaller than the acoustic wave length; therefore, the periodic medium could be regarded as a homogeneous one ...
J. Flores Méndez +5 more
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Study on Blast Mitigation Protection of Underground Station Structures Using Phononic Crystals
BuildingsUrban subways, as critical strategic spaces, require underground structures with sufficient blast-resistant capabilities. To evaluate the blast resistance performance of underground station structures under ground-level nuclear explosion air shock waves,
Jihu Wu +5 more
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Verification of Total Band Gap in 2D Si-based Phononic Crystal
, 2007 In recent years, there are studies aimed at phononic crystals, both experimentally and theoretically. However, the smallest scale of the phononic structures considered is in the millimeter scale and the frequency is limited in the MHz range.
梁秉鈞, Liang, Bing-Giun
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Phononic crystal slabs: fundamentals and applications
, 2012 International audienceWe present in this paper theoretical and experimental studies of guided acoustic wave propagating in phononic crystal slabs.
Khelif, Abdelkrim
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Active wave-guiding of the piezoelectric phononic crystal
, 2011 Wave-guiding in phononic crystal has been typically achieved by imposing a crystal defect having different geometry or material. This paper presents active wave-guiding of piezoelectric phononic crystal by external electrical control.
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Vibrational properties of the phononic crystal structural cavity [PDF]
, 2015 This paper discusses the construction of a model of phononic crystals and the calculation of the band gap by the finite element method. The physical parameters on the band structure are studied in order to find the proper material suitable for a low ...
Yuyang He, Xiaoxiong Jin
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Octane Number Determination of Gasoline with a Phononic Crystal Sensor
, 2012 The wide range of fuels supplied nowadays has different composition. In order to optimize the combustion process, engine performance and meeting the EPA emissions standards, information about the properties of gasoline should be gained in real time. This
Oseev, A. +5 more
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Integrated phononic crystal resonators based on adiabatically-terminated phononic crystal waveguides
AIP Advances, 2016 In this letter, we demonstrate a new design for integrated phononic crystal (PnC) resonators based on confining acoustic waves in a heterogeneous waveguide-based PnC structure.
Razi Dehghannasiri +3 more
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