Zobrazeno 1 - 10
of 573
pro vyhledávání: '"Jinhao Qiu"'
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 37, Iss 1, Pp 1-15 (2024)
Abstract Vibration quality is a vital indicator for assessing the progress of modern equipment. The dynamic vibration absorber (DVA) based on the acoustic black hole (ABH) feature is a new passive control method that manipulates waves. It offers effi
Externí odkaz:
https://doaj.org/article/ca53fb81153d49ec8d537a5270a130c8
Publikováno v:
International Journal of Smart and Nano Materials, Vol 13, Iss 3, Pp 481-503 (2022)
ABSTRACTIn this work, a novel aircraft door sealing structure driven by shape memory alloys (SMAs) is proposed that offers much improved sealing capability than traditional sealing plates. The two-way shape memory effect (TWSME) of SMAs is utilized s
Externí odkaz:
https://doaj.org/article/a310d856c9954ce5a2239fac775904ab
Autor:
Hao Bao, Yizhou Ma, Jiatai Sun, Qiuying Zhao, Lu Yang, Ying Hou, Haiyan He, Huajie Huang, Hongli Ji, Jinhao Qiu
Publikováno v:
Advanced Electronic Materials, Vol 9, Iss 2, Pp n/a-n/a (2023)
Abstract Nowadays, the advent of pressure sensors for intelligence terminal devices and skin‐inspired electronics has trigged rapid development of flexible, sensitive, and transparent sensing materials. Piezo‐active poly(vinylidene fluoride) (PVD
Externí odkaz:
https://doaj.org/article/d5bcf2bfc4584c579caeb8fecf8d5d37
Publikováno v:
Polymers, Vol 15, Iss 11, p 2457 (2023)
The acoustic black hole (ABH) is a feature commonly found in thin-walled structures that is characterized by a diminishing thickness and damping layer with an efficient wave energy dissipation effect, which has been extensively studied. The additive
Externí odkaz:
https://doaj.org/article/952cc3819f234dd7ac59e935cf5c823a
Publikováno v:
Sensors, Vol 23, Iss 4, p 1943 (2023)
Lamb wave-based damage detection technology shows great potential for structural integrity assessment. However, conventional damage features based damage detection methods and data-driven intelligent damage detection methods highly rely on expert kno
Externí odkaz:
https://doaj.org/article/723989d2dc764462a03435ccb06960f8
Publikováno v:
Actuators, Vol 12, Iss 1, p 25 (2023)
Shape memory alloys (SMAs) are widely used in aerospace, automobile, and other fields because of their excellent properties, such as large driving force and large deformation. A training method with a bidirectional memory effect is proposed for SMA a
Externí odkaz:
https://doaj.org/article/18e9b5b5b358434790832c9d32a5f73c
Autor:
Jinling Zhao, Lehui Yang, Hongyuan Wang, Jianping Zhao, Nian Li, Le Chang, Hongli Ji, Jinhao Qiu
Publikováno v:
Polymers, Vol 14, Iss 18, p 3823 (2022)
This paper characterizes laser-generated guided waves in a metal-lined composite-overwrapped pressure vessel (COPV) to assess typical damage, including interfacial debonding and low-velocity impact damage. First, an eigenfrequency approach that avoid
Externí odkaz:
https://doaj.org/article/8b23ecf070b948b59c8c864d03b03faa
Publikováno v:
Journal of Materiomics, Vol 4, Iss 1, Pp 44-50 (2018)
A flexible polymer nanocomposite has been developed via introducing Nd-doped BaTiO3 nanoparticles into the poly(vinylidene fluoride). This nanocomposite delivers a discharged energy density up to 12.5 J/cm3 under an electric field of 420 kV/mm with o
Externí odkaz:
https://doaj.org/article/4fdf6fc9072745188362954a1bf5d0db
Publikováno v:
AIP Advances, Vol 9, Iss 4, Pp 045312-045312-6 (2019)
Mechanical frequency up-conversion is a technique whereby a high-frequency oscillation is induced from a low-frequency source and aims to address inherent problems in low frequency vibration energy harvesting. This work presents a novel 1:2:6 interna
Externí odkaz:
https://doaj.org/article/b6c4561779c04c999f1beb7302b30bc0
Publikováno v:
AIP Advances, Vol 7, Iss 12, Pp 125104-125104-8 (2017)
The energy storage density of pure polymers is usually limited by their low intrinsic dielectric constants (εeff). Integrating polymer matrix with ceramic particles with high εeff values has been one powerful approach to enhance the εeff values of
Externí odkaz:
https://doaj.org/article/d6017dd923394aeda1879203cb3cfb94