Review
Physics, Multidisciplinary
Zhenjing Zhu, Ning Hu, Junyi Wu, Wenxin Li, Jiabao Zhao, Maofa Wang, Fanzong Zeng, Huajie Dai, Yongju Zheng
Summary: This article reviews the basic characteristics and development history of underwater acoustic metamaterials, discusses the limitations of traditional underwater acoustic materials under low frequency and high hydrostatic pressure, and explores the application and future development direction of underwater acoustic metamaterials.
FRONTIERS IN PHYSICS
(2022)
Article
Physics, Applied
Ye Gu, Houyou Long, Ying Cheng, Mingxi Deng, Xiaojun Liu
Summary: The study introduces a thin composite metasurface for efficient suppression of low-frequency waterborne sound, showing promising potential for versatile applications.
PHYSICAL REVIEW APPLIED
(2021)
Article
Multidisciplinary Sciences
Xindong Zhou, Xiaochen Wang, Fengxian Xin
Summary: In this research, an ultrathin acoustic metamaterial composed of space-coiled water channels with a rubber coating is proposed for underwater sound absorption. The proposed metamaterial achieves perfect sound absorption at 181 Hz with a deep subwavelength thickness. The introduction of a rubber coating leads to slow-sound propagation, which is crucial for achieving perfect low-frequency sound absorption.Parametric studies are conducted to investigate the effects of specific structural and material parameters on sound absorption. By tailoring key geometric parameters, an ultra-broadband underwater sound absorber is constructed, paving a new way for designing underwater acoustic metamaterials and controlling underwater acoustic waves.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Electrical & Electronic
Ahmed Mehaney, Ashour M. Ahmed, Hussein A. Elsayed, Arafa H. Aly, Walied Sabra
Summary: We have demonstrated and explored the effects of hydrostatic pressure on a one-dimensional phononic crystal. The proposed structure consists of a stack of polycrystalline silicon and polymethyl methacrylate (PMMA) for four unit cells. By using the transfer matrix method, we investigated the transmittance spectrum of the phononic crystal under different hydrostatic pressure. The results show that the phononic band gap (PnBG) can be controlled and tuned by adjusting the applied hydrostatic pressure.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Physics, Applied
Zhaoxi Li, Shenghui Yang, Danfeng Wang, Han Shan, Dongdong Chen, Chunlong Fei, Meng Xiao, Yintang Yang
Summary: This study proposes a 3D printed gradient-index phononic crystal (GRIN PC) lens that can achieve beam focusing at high frequencies in water. The integration and miniaturization of ultrasound transducers and lenses enables convenient particle capture in medical applications.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
Haofeng Liang, Xiao Liang, Jiaming Chu, Zhuo Zhou
Summary: This paper designs a phononic crystal with acoustic black hole (ABH) characteristics and discusses the mechanism of bandgap expansion and the factors influencing ABH. The results show that the phononic crystal with ABH has improved bandgap width and limits compared to the one without ABH.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Review
Chemistry, Multidisciplinary
Mourad Oudich, Nikhil J. R. K. Gerard, Yuanchen Deng, Yun Jing
Summary: In solid state physics, a bandgap refers to a range of energies where no electronic states can exist. This concept has been extended to classical waves, giving rise to photonic and phononic crystals. In elastic waves, bandgaps are found in materials with periodic alternating mechanical properties, leading to the development of elastic metamaterials and phononic crystals. The rise of topological insulators and the advancement of additive manufacturing have further expanded the functionalities of these manmade materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Mechanical
Huilan Wu, Han Zhang, Chengpeng Hao
Summary: A well-designed coiled metasurface can be used for extraordinary underwater sound isolation, as proposed in this letter with a quasi-perfect sound-absorbing metasurface in spiral shape form. The metasurface meets the conditions for perfect absorption and can flexibly tune the peak frequency of sound absorption, showing a quasi-prefect sound absorption coefficient of up to almost 0.998.
EXTREME MECHANICS LETTERS
(2021)
Article
Physics, Applied
Yingjian Sun, Xujin Yuan, Zhongkun Jin, Guangfu Hong, Mingji Chen, Mengjing Zhou, Weiduan Li, Daining Fang
Summary: This study reports a method to broaden the frequency band of underwater sound absorption structure (USAS) by embedding a membrane-type resonator, forming a membrane-type underwater acoustic absorption metamaterial. The mechanism of the membrane-type metamaterial is explained through theory and validated through simulation and experiment. The experimental results show significant improvement in sound absorption coefficient in the specified frequency range, indicating the potential application in acoustic wave communication and device compatibility design technologies.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Review
Materials Science, Multidisciplinary
Christabel Choi, Shubhi Bansal, Niko Munzenrieder, Sriram Subramanian
Summary: Acoustic metamaterials and phononic crystals have the potential to revolutionize human interactions and sensory communications. Understanding the fundamental theory and design principles alone is not enough; physical realization of these structures through fabrication and assembly is equally important. The paper critically examines fabrication and assembly approaches, addressing crucial parameters for efficient structural implementation. Various assembly techniques are proposed, uncovering innovative designs and supporting a fresh paradigm for innovation.
ADVANCED ENGINEERING MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Xianmei Chen, Lei Meng, Zibo Liu, Feiran Yang, Xin Jiang, Jun Yang
Summary: Rapid advancements in underwater vehicle technology have created a higher demand for sound absorption materials that can withstand the unique underwater conditions. Developing innovative composite materials with multifunctional properties, such as high hydrostatic pressure resistance and corrosion prevention, presents challenges for researchers. This comprehensive review provides an in-depth analysis of the mechanisms governing underwater sound absorption and explores potential solutions and challenges for multifunctional integrated sound-absorbing materials. It serves as a valuable resource for future research in underwater vehicle technology development and optimization.
APPLIED SCIENCES-BASEL
(2023)
Article
Acoustics
Haibin Yang, Honggang Zhao, Jihong Wen
Summary: This study proposes a linearization theory for the acoustic scattering process of underwater structure coatings. The theory is validated using finite element analysis and the results show that hydrostatic pressure not only affects cavity deformation but also alters the value of the incremental constitutive tensor, thus influencing the acoustic absorption of the coating.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Crystallography
Jianning Han, Guodong Hao, Wenying Yang, Xinsa Zhao
Summary: In the field of industrial structure detection, acoustic signals play a pivotal role. This study proposes a structure (PC-Mie) that couples phononic crystal (PC) point defects and Mie resonance structures (Mies) to enhance weak effective signals from complex environments. Numerical and experimental studies demonstrate that the PC-Mie can effectively enhance the energy of specific sound frequencies in complex air environments, making it suitable for collecting high-sensitivity acoustic signals. This research has significant implications for the development of weak acoustic signal detection technology and the application of self-powered sensors.
Article
Physics, Applied
Fuyin Ma, Zhen Huang, Chongrui Liu, Jiu Hui Wu
Summary: This tutorial provides a comprehensive overview of the basic principles and traditional methods of acoustic focusing and imaging. It further discusses the progress in sub-wavelength focusing and super-resolution imaging achieved through artificial acoustic devices such as phononic crystals and acoustic metamaterials. The tutorial also explores the potential future trends and practical application prospects in this field.
JOURNAL OF APPLIED PHYSICS
(2022)
