@inproceedings{aaf05bf9964945ac8d82eb11245e7a11,
title = "Vibro-acoustic analysis of auxetic hexagonal and anti-tetrachiral stepped cantilever beams",
abstract = "This research develops lightweight stepped cantilever beams using two auxetic hexagonal and anti-tetrachiral designs to reduce sound radiation from vibrating modes of attached structures. A finite element analysis (FEA) is employed to investigate the equivalent radiated power level (ERPL) of the proposed beams subjected to different excitations. A computational parametric study is performed to minimize the ERPL for two in-plane and out-of-plane configurations of the beams over a frequency range of 0 Hz to 1200 Hz. The vibro-acoustic responses of the beams are validated by two acoustic techniques of the radiated sound pressure level (RSPL) and far-field sound pressure level (FFSPL). Numerical results demonstrate an excellent vibro-acoustic performance in reducing the radiated sound power level for the beams. The proposed beams can be utilized for high-tech devices where the radiated noise control is desired. This paper opens up a great potential of using auxetic stepped cantilever beams for various engineering applications in Acoustics, Civil, Aerospace, Biomedical, and Mechanical Engineering.",
author = "Saman Farhangdoust and \{Adetola Adediran\}, Ibrahim and Mostafa Ranjbar and Krushynska, \{Anastasiia Oleksandrivna\}",
year = "2021",
month = mar,
day = "22",
doi = "10.1117/12.2583341",
language = "English",
isbn = "9781510640153",
series = "Proceedings of SPIE",
publisher = "SPIE",
number = "11593",
editor = "Fromme, \{Paul \} and Zhongqing Su",
booktitle = "Health Monitoring of Structural and Biological Systems XV",
note = " SPIE Smart Structures + Nondestructive Evaluation, 2021 ; Conference date: 22-03-2021 Through 26-03-2021",
}