Results 111 to 120 of about 13,645 (194)

On-demand tunable metamaterials design for noise attenuation with machine learning

Materials & Design
Metamaterials with structure-dominated properties provide a new way to design structures to obtain desired performance. To achieve a wide range of applications, on-demand tunable metamaterials would fulfill various and changing needs.
Lige Chang, Xiaowen Li, Zengrong Guo, Yajun Cao, Yuyang Lu, Rinaldo Garziera, Hanqing Jiang   +6 more
doaj   +1 more source

Advancements in ship acoustic stealth technology based on acoustic absorbing and insulating metamaterials

Zhongguo Jianchuan Yanjiu
With the rapid advancement of modern underwater detection technologies, both detection accuracy and frequency coverage, particularly in the low-frequency range, have improved significantly.
Wei LI, Zhiwei SONG, Zhiyuan HE, Jiuhui WU   +3 more
doaj   +1 more source

Review of Underwater Acoustic Communication Based on Metamaterials

水下无人系统学报
In recent years, acoustic metamaterials, as a sort of novel artificial composite materials, have demonstrated the ability to surpass the limitations of traditional materials through their exceptional acoustic parameter manipulation capabilities.
Ping ZHOU, Han JIA, Jun YANG
doaj   +1 more source

Effective Parameters of Acoustic Metamaterials

Russian Physics Journal, 2018
Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility.
openaire   +2 more sources

Vibration Reduction Method for Power Cabin of Torpedoes Based on Acoustic Metamaterials

水下无人系统学报
The acoustic stealth performance of torpedoes directly affects the safety of the launching platform, the concealment of the torpedo attack, and the effectiveness of wire-guided guidance.
Xuyang SUN, Jingjun ZHOU, Qian WANG, Zhimin ZHANG   +3 more
doaj   +1 more source

An Investigation of Modular Composable Acoustic Metamaterials with Multiple Nonunique Chambers. [PDF]

Materials (Basel), 2023
Yang X, Shen X, Hu D, Wang X, Song H, Zhao R, Zhang C, Shen C, Yang M.   +8 more
europepmc   +1 more source

Multi-Order Asymmetric Acoustic Metamaterials with Broad Bandgaps at Subwavelength Scales. [PDF]

Materials (Basel), 2023
Wang X, Chen W, Li S.
europepmc   +1 more source

An adjustable acoustic metamaterial cell using a magnetic membrane for tunable resonance

Scientific Reports
Acoustic metamaterials are growing in popularity for sound applications including noise control. Despite this, there remain significant challenges associated with the fabrication of these materials for the sub-100 Hz regime, because acoustic ...
Alicia Gardiner, Roger Domingo-Roca, James F. C. Windmill, Andrew Feeney   +3 more
doaj   +1 more source

Phonon Engineering of Micro- and Nanophononic Crystals and Acoustic Metamaterials: A Review. [PDF]

Small Sci, 2023
Ma J.
europepmc   +1 more source

Synthetic Pseudo-Spin-Hall effect in acoustic metamaterials. [PDF]

Nat Commun, 2022
Weiner M, Ni X, Alù A, Khanikaev AB.
europepmc   +1 more source