http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Qu Z. Q. (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
-
Qu, Y.G.,Wu, H.,Xu, Z.Y.,Liu, X.,Dong, Z.F.,Fang, Q. Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.2
Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part II, based on the verified finite element (FE) models of aircrafts Airbus A320 and A380, as well as the NPP containment and auxiliary buildings in Part I of this paper, the whole collision process is reproduced numerically by adopting the coupled missile-target interaction approach with the finite element code LS-DYNA. The impact induced damage of NPP plant under four impact locations of containment (cylinder, air intake, conical roof and PCS water tank) and two impact locations of auxiliary buildings (exterior wall and roof of spent fuel pool room) are evaluated. Furthermore, by considering the inner structures in the containment and raft foundation of NPP, the structural vibration analyses are conducted under two impact locations (middle height of cylinder, main control room in the auxiliary buildings). It indicates that, within the discussed scenarios, NPP structures can withstand the impact of both two aircrafts, while the functionality of internal equipment on higher floors will be affected to some extent under impact induced vibrations, and A380 aircraft will cause more serious structural damage and vibrations than A320 aircraft. The present work can provide helpful references to assess the safety of the structures and inner equipment of NPP plant under commercial aircraft impact.
-
Xu, Z.Y.,Wu, H.,Liu, X.,Qu, Y.G.,Li, Z.C.,Fang, Q. Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.2
Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part III, the local damage of the rigid components of aircraft, e.g., engine and landing gear, impacting the steel concrete (SC) structures of NPP containment is mainly discussed. Two typical SC target panels with the thicknesses of 40 mm and 100 mm, as well as the steel cylindrical projectile with a mass of 2.15 kg and a diameter of 80 mm are fabricated. By using a large-caliber air gas gun, both the projectile penetration and perforation test are conducted, in which the striking velocities were ranged from 96 m/s to 157 m/s. The bulging velocity and the maximal deflection of rear steel plate, as well as penetration depth of projectile are derived, and the local deformation and failure modes of SC panels are assessed experimentally. Then, the commercial finite element program LS-DYNA is utilized to perform the numerical simulations, by comparisons with the experimental and simulated projectile impact process and SC panel damage, the numerical algorithm, constitutive models and the corresponding parameters are verified. The present work can provide helpful references for the evaluation of the local impact resistance of NPP buildings against the aircraft engine.
-
Liu, X.,Wu, H.,Qu, Y.G.,Xu, Z.Y.,Sheng, J.H.,Fang, Q. Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.2
Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part I, finite element (FE) models establishment and validations for both the aircrafts and NPP buildings are performed. (i) Airbus A320 and A380 aircrafts are selected as the representative medium and large commercial aircrafts, and the corresponding fine FE models including the skin, beam, fuel and etc. are established. By comparing the numerically derived impact force time-histories with the existing published literatures, the rationality of aircrafts models is verified. (ii) Fine FE model of the Chinese Zhejiang Sanao NPP buildings is established, including the detailed structures and reinforcing arrangement of both the containment and auxiliary buildings. (iii) By numerically reproducing the existing 1/7.5 scaled aircraft model impact tests on steel plate reinforced concrete (SC) panels and assessing the impact process and velocity time-history of aircraft model, as well as the damage and the maximum deflection of SC panels, the applicability of the existing three concrete constitutive models (i.e., K&C, Winfrith and CSC) are evaluated and the superiority of Winfrith model for SC panels under deformable missile impact is verified. The present work can provide beneficial reference for the integral aircraft crash analyses and structural damage assessment in the following two parts of this paper.
-
Optical Nanostructures Fabricated by SU-8 based Nanoimprint Lithography
R. Liu,B.-R. Lu,S.-Q. Xie,J. Wan,Z. Shu,X.-P. Qu,Y. Chen 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.3
The high resolution low-cost and high-volume nano-pattering capability of the nanoimprint lithography (NIL) and the high optical transmittance of SU-8 in the infrared, the visible and the near-UV light ranges have enabled us to apply the SU-8 based NIL to produce various optical nanostructures. We fabricated dielectric and metallic gratings of various groove density (1000 – 5000 lines/mm) in a relatively large area (10 mm × 10 mm) and planar chiral photonic meta-material structure in SU-8 with periods of both 600 nm and 4 μm. We also designed and successfully fabricated distributed Bragg reflectors (DBRs) with Si/SiO2/SU8/air structures Optical measurements of the SU-8 based nanostructures showed good optical performance and interesting properties, and the experimental data agree reasonably well with simulation results. The high resolution low-cost and high-volume nano-pattering capability of the nanoimprint lithography (NIL) and the high optical transmittance of SU-8 in the infrared, the visible and the near-UV light ranges have enabled us to apply the SU-8 based NIL to produce various optical nanostructures. We fabricated dielectric and metallic gratings of various groove density (1000 – 5000 lines/mm) in a relatively large area (10 mm × 10 mm) and planar chiral photonic meta-material structure in SU-8 with periods of both 600 nm and 4 μm. We also designed and successfully fabricated distributed Bragg reflectors (DBRs) with Si/SiO2/SU8/air structures Optical measurements of the SU-8 based nanostructures showed good optical performance and interesting properties, and the experimental data agree reasonably well with simulation results.
-
ScienceON
코리아스칼라연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
