| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Theoretical and Experimental Investigation of Flexural Wave Propagating in a Periodic Pipe with Fluid-Filled Loading |
| WEN Ji-Hong**, SHEN Hui-Jie, YU Dian-Long, WEN Xi-Sen
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Institute of Mechatronical Engineering, and Key Lab of Photonic and Phononic Crystals (MOE), National University of Defense Technology, Changsha 410073
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| Cite this article: |
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WEN Ji-Hong, SHEN Hui-Jie, YU Dian-Long et al 2010 Chin. Phys. Lett. 27 114301 |
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Abstract Based on the Bragg scattering mechanism of phononic crystals (PCs), a periodic composite material pipe with fluid loading is designed and studied. The band structure of the flexural wave in the periodic pipe is calculated with the transfer matrix (TM) method. A periodic piping experimental system is designed, and the vibration experiment is performed to validate the attenuation ability of the periodic pipe structure. Finally, a finite-element pipe model is constructed using the MSC-Actran software, and the calculated results match well with the vibration experiment. The errors between the theoretical calculation results and the vibration experimental results are analyzed.
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| Keywords:
43.40.+s
46.40.Cd
62.30.+d
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Received: 12 July 2010
Published: 22 October 2010
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| PACS: |
43.40.+s
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(Structural acoustics and vibration)
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46.40.Cd
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(Mechanical wave propagation (including diffraction, scattering, and dispersion))
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62.30.+d
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(Mechanical and elastic waves; vibrations)
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