Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Shilin Yan"'
Publikováno v:
Polymers, Vol 16, Iss 7, p 873 (2024)
Traditional polymer curing techniques present challenges such as a slow processing speed, high energy consumption, and considerable initial investment. Frontal polymerization (FP), a novel approach, transforms monomers into fully cured polymers throu
Externí odkaz:
https://doaj.org/article/815728479e2948e5bcb3ea73e0f4a878
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-16 (2022)
Abstract In this article, a new method for creep modeling and performance prediction of composite materials is presented. Since Findley power-law model is usually suitable for studying one-dimensional time-dependent creep of materials under low stres
Externí odkaz:
https://doaj.org/article/87a6df3e6d6a48079fa9f4577f3bf7f2
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 42 (2023)
Acoustic radiation through a system of double-walled shells, lined with porous foams, and stiffened by annular plates simultaneously is studied. Based on modeling, the porous foams as absorbent fluid property, acoustic characteristics of structure ar
Externí odkaz:
https://doaj.org/article/3a1270342a4d42a8b24264d9e694f0a9
Publikováno v:
Tehnički Vjesnik, Vol 27, Iss 1, Pp 142-148 (2020)
This paper focuses on the noise reduction of the cylindrical structure at low frequency (130 Hz-180 Hz). The low-frequency noise response spectrum in the cylindrical cavity is obtained by using the Helmholtz resonator (HR) to reduce the noise peak am
Externí odkaz:
https://doaj.org/article/eee3d501ef5f4b65bc759e69fcb08b70
Publikováno v:
Materials, Vol 16, Iss 2, p 468 (2023)
Compared with the traditional lattice structure, the triply periodic minimal surface (TPMS) structure can avoid stress concentration effectively. Here, it is promising in the fields of lightweight and energy absorption. However, the number of structu
Externí odkaz:
https://doaj.org/article/5021dc12ca9845798e30828ef3a931e1
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
To solve the problem of the harsh midlow frequency noise of rocket fairing, the cylindrical section of the protective precision instrument fairing is simplified as cylindrical shells, and different lining strategies of melamine foam (MF) are studied
Externí odkaz:
https://doaj.org/article/1bea33d423c34d3faff2827c61d69e75
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
Eccentrically braced frames (EBFs) have good elastic stiffness, while semirigid joints can provide greater ductility and make all components easy to fabricate. With application of semirigid connections to EBFs, a seismic structure can be formed. Afte
Externí odkaz:
https://doaj.org/article/93cbb0c3fa824ec5a194175091582e9c
Publikováno v:
Results in Physics, Vol 14, Iss , Pp - (2019)
In order to solve the problem of mid-low frequency noise reduction in cylindrical shells, the experimental and simulation methods are used to study the noise reduction performance of cylindrical shells with different acoustic covering layers in the m
Externí odkaz:
https://doaj.org/article/97cb6c46ca16447e8f6b0452e415746a
Publikováno v:
Results in Physics, Vol 13, Iss , Pp - (2019)
In this study, great efforts were paid to investigate noise reduction in a cylindrical cavity with melamine foam (MF) lining within the low-medium frequency range (100–400 Hz). In theoretical studies, MF was generally regarded as the impedance boun
Externí odkaz:
https://doaj.org/article/e7a9640e425243b1ada1387533484d79
Publikováno v:
Science and Engineering of Composite Materials, Vol 23, Iss 6, Pp 617-624 (2016)
Fibre fabrics in liquid composite moulding can be considered as dual-scale porous media. In different gap scales, an unsaturated flow is produced during the mould filling process. This particular flow behaviour deviates from the traditional Darcy’s
Externí odkaz:
https://doaj.org/article/f4187050993f494d9a7defb7fdcb8750