Arbitrary Angle Waveguide Bends Made of a New Heterostructure Phononic Crystal
Publish place: Journal of Solid Mechanics، Vol: 15، Issue: 2
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JSMA-15-2_007
تاریخ نمایه سازی: 28 خرداد 1402
Abstract:
In this paper, an arbitrary angle waveguide bend made of a new heterostructure phononic crystal has been studied. By creation of line defects in the proposed heterostructure which is composed of square and rhombus phononic crystals, a simple structure waveguide bend with arbitrary angles is made. Analyzing the proposed bend showed that by creating line defects in the composition of the square and equilateral triangle lattices, ۳۰˚ waveguide bend can be realized. Also the study showed that by creating line defects in the composition of the square and rhombus lattices, ۴۰˚ (۲۰˚) waveguide bend could be obtained if the angular constant of the rhombus lattice is ۸۰˚ (۴۰˚). The ۴۰˚ and ۲۰˚ waveguide bends have a narrow pass band which can be utilized as a filter to separate a specific frequency and guide it along a defined pass. Also the study shows that by incorporation of ۹۰˚ bend within the presented heterostructure bends, waveguide bends can be realized that guide elastic waves in the arbitrary angles greater than ۹۰˚.
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Authors
M Bagherinouri
Faculty of Engineering, Arak University, Arak, Iran
M Moradi
Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran
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