Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Fengxian Xin"'
Autor:
Chenlei Yu, Mingyu Duan, Fei Ti, Fengxian Xin, Guiping Zhao, Tian Jian Lu, Runpei Yu, Moxiao Li, Xin Chen
Publikováno v:
Advanced Science, Vol 11, Iss 22, Pp n/a-n/a (2024)
Abstract Porous materials with sound absorption and load‐bearing capabilities are in demand in engineering fields like aviation and rail transportation. However, achieving both properties simultaneously is challenging due to the trade‐off between
Externí odkaz:
https://doaj.org/article/a7c4fa73a53c43b9ab072c96177be825
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract In this work, an ultrathin acoustic metamaterial formed by space-coiled water channels with a rubber coating is proposed for underwater sound absorption. The proposed metamaterial achieves perfect sound absorption ( $$\alpha$$ α > 0.99) at
Externí odkaz:
https://doaj.org/article/eace5c7838dd4edbbb395153db54b377
Publikováno v:
International Journal of Mechanical System Dynamics, Vol 2, Iss 3, Pp 265-277 (2022)
Abstract To address the challenging task of effective sound absorption in the low and broad frequency band for underwater structures, we propose a novel grating‐like anechoic layer by filling rubber blocks and an air backing layer into metallic gra
Externí odkaz:
https://doaj.org/article/e57664669ab24032af0a8b1a4b4d1d3b
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025352-025352-9 (2023)
We proposed an acoustic metamaterial with deep subwavelength thickness for low-frequency underwater sound absorption. The proposed hybrid metamaterial has a perforated facesheet, a fluid-filled square honeycomb core with inside rubber coating, and a
Externí odkaz:
https://doaj.org/article/2b9df3effad84125b4c727e9dcda2749
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111437- (2023)
A high-temperature theoretical model is established to investigate the sound absorption performance of helically perforated porous metamaterials (HPPM) at high temperature. Finite element simulations are carried out to validate the theoretical model,
Externí odkaz:
https://doaj.org/article/ca0b4eda1f7b4266bea46718b7eb0f22
Autor:
Fengxian Xin, Tian Jian Lu
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract We demonstrate theoretically that an ultrasonic wave propagating in a hyperelastic medium can self-control its phase velocities. This phenomenon occurs because the propagation of the ultrasonic wave generates acoustic radiation stresses in t
Externí odkaz:
https://doaj.org/article/9df1849998d64d5c8f1b7e8a54ff4b70
Autor:
Fengxian Xin, Tianjian Lu
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 6, Iss 1, Pp 38-41 (2016)
We develop an acoustomechanical theory for semicrystalline polymers and demonstrate that acoustic radiation force is capable of causing giant deformation in these materials. When a polymer layer is subjected to combined tensile mechanical force in pl
Externí odkaz:
https://doaj.org/article/aed77c2290db4cb4a8f185ff13cabbea
Autor:
Yifan Liu, Fengxian Xin
Publikováno v:
Journal of Fluid Mechanics; 1/25/2024, Vol. 979, p1-33, 33p
Autor:
Xiangjun Peng, Yifan Liu, Wei He, Ethan D. Hoppe, Lihong Zhou, Fengxian Xin, Elizabeth S. Haswell, Barbara G. Pickard, Guy M. Genin, Tian Jian Lu
Publikováno v:
Biophysical Journal. 121:3917-3926
Acoustic transduction by plants has been proposed as a mechanism to enable just-in-time up-regulation of metabolically expensive defensive compounds. Although the mechanisms by which this "hearing" occurs are unknown, mechanosensation by elongated pl
Autor:
Lei, Zhang, Fengxian, Xin
Publikováno v:
The Journal of the Acoustical Society of America. 151:1191-1199
In this paper, an acoustic metamaterial, composed of rough neck embedded Helmholtz resonators, is proposed to achieve perfect sound absorption in the low-frequency range. The wall shape of the embedded neck in Helmholtz resonators can be adjusted to