چکیده مقاله
The attenuation of low frequency elastic waves using lightweight structures remains a critical challenge in engineering To address this, this paper proposes an innovative honeycomb metamaterial featuring walls designed with cubic Bezier curves BHM The dynamic behavior and wave propagation characteristics of this structure are analyzed using the finite element method combined with Bloch's theorem The initial results revealed that BHM can open four band gaps below 2 kHz with 66 7% spectral coverage A subsequent parametric optimization of the geometric designs led to a lowest band gap at 242 Hz, enhancing the spectral coverage to 77 1% A comprehensive analysis of the structure's wave propagation characteristics using dispersion surfaces, group velocity, and phase velocity is presented to provide a deeper insight into its attenuation properties These findings underscore the effectiveness of parametrically controlled curved designs for designing next generation metamaterials for targeted low frequency attenuation
کلیدواژهها
نویسندگان
Amir Mohammad Balizadeh
Mechanical Engineering Department, Chamran University of Ahaz, Ahvaz, Iran
Amin Yaghootian
Mechanical Engineering Department, Chamran University of Ahaz, Ahvaz, Iran
Hamid M. Sedighi
Mechanical Engineering Department, Chamran University of Ahaz, Ahvaz, Iran
شیوه ارجاع
Balizadeh, Amir Mohammad and Yaghootian, Amin and Sedighi, Hamid M.,1404,Tailoring low-frequency wave attenuation in metamaterials with cubic Bezier curves,The First National Conference on Applied Technologies in Mechanical Engineering (ATME2025),Ahvaz
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مجموعه مقالات اولین کنفرانس ملی فناوری های کاربردی در مهندسی مکانیک27 آبان 1404 · اهواز