Propagation of flexural wave in periodic beam on elastic foundations |
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| Authors: | Dianlong Yu Jihong Wen Huijie Shen Yong Xiao Xisen Wen |
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| Affiliation: | a Institute of Mechatronical Engineering, National University of Defense Technology, Changsha 410073, China
b Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | The propagation properties of flexural wave in the periodic beam on elastic foundations are studied theoretically. The wavenumbers and traveling wave characteristics in the beam on elastic foundations are analyzed. Basing on the equations of motion, the complex band structures and frequency response function are calculated by the transfer matrix method. And the Bragg and locally resonant gaps properties and the effects are researched. A gap with low frequency and wide range can exist in a beam on elastic foundations. |
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| Keywords: | Phononic crystal Beam Band gap Elastic foundation |
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