中国科学院机构知识库网格系统: 检索

A fast simulation method for hydraulic-fracture-network generation in fractured rock based on fully coupled XFEM 期刊论文 OAI收割
COMPUTERS AND GEOTECHNICS, 2022, 卷号: 150, 期号: -, 页码: -
作者: Zhou, Yun; Yang, Diansen

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收藏 | 浏览/下载：12/0 | 提交时间：2023/08/02

XFEM Hydraulic fracturing Hydraulic-fracture network Natural fractures Fast simulation method

Real-time temperature estimation method for electromagnetic performance improvement of a large axisymmetric radio telescope under solar radiation 期刊论文 OAI收割
Iet Microwaves Antennas & Propagation, 2020, 卷号: 14, 期号: 13, 页码: 1635-1642
作者: Lian, Peiyuan; Wang, Congsi; Xu, Qian; Xiang, Binbin; Shi, Yu

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收藏 | 浏览/下载：40/0 | 提交时间：2021/06/25

radiotelescopes temperature sensors reflector antennas solar radiation temperature database table look-up method temperature field estimation speed real-time estimated temperature field temperature sensors real-time compensation axisymmetric telescopes time temperature estimation method electromagnetic performance improvement axisymmetric radio telescope solar radiation electromagnetic performances EM performance improvements temperature simulation fast estimation method transient temperature field simulation high-frequency radio telescopes large-aperture radio telescopes reflector antenna reflector antennas surface error adjustment pattern field Engineering Telecommunications

The development and application of digital refueling mock-up for China initiative accelerator driven system 期刊论文 OAI收割
PROGRESS IN NUCLEAR ENERGY, 2020, 卷号: 127, 页码: 9
作者: Li Jin-Yang; Gu Long; He Zhi-Yong; Zhang You-Peng; Xu Hu-Shan

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收藏 | 浏览/下载：29/0 | 提交时间：2021/12/15

CiADS Immersive virtual reality Collision detection Refueling simulation Fast ray-casting method

Field evaluation and analysis of road subgrade dynamic responses under heavy duty vehicle 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING, 2018, 卷号: 19, 期号: 12, 页码: 1077-1086
作者: Lu, Zheng; Hu, Zhi; Yao, Hai-lin; Liu, Jie

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收藏 | 浏览/下载：49/0 | 提交时间：2018/12/29

Field evaluation road vibration heavy vehicle stiffness matrix method analytical simulation Fast Fourier Transform (FFT)

Field evaluation and analysis of road subgrade dynamic responses under heavy duty vehicle 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING, 2018, 卷号: 19, 期号: 12, 页码: 1077-1086
作者: Lu, Zheng; Hu, Zhi; Yao, Hai-lin; Liu, Jie

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收藏 | 浏览/下载：38/0 | 提交时间：2020/04/08

Field evaluation road vibration heavy vehicle stiffness matrix method analytical simulation Fast Fourier Transform (FFT)

Numerical Study on Dynamic Response of a Horizontal Layered-Structure Rock Slope under a Normally Incident Sv Wave 期刊论文 OAI收割
APPLIED SCIENCES-BASEL, 2017, 卷号: 7, 期号: 7
作者: Zhan, Zhifa; Qi, Shengwen

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收藏 | 浏览/下载：32/0 | 提交时间：2017/11/24

horizontal layered-structure rock slope normalized fracture stiffness dimensionless fracture spacing dynamic response Fast Lagrangian Analysis of Continua method (FLAC) numerical simulation

Semi-physical simulation of an optoelectronic tracking servo system based on C MEX S functions (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Juan C.; Junhong Z.

收藏 | 浏览/下载：26/0 | 提交时间：2013/03/25

To the design of an optoelectronic tracking servo system we test the method [1 not only the reasonability of the control algorithm should be considered 2]. The simulation results verify the theoretical analysis. Because C MEX S function has the features of fast execute speed but the cost and time as well. It is necessary to establish the simulation model for the system. Applying the C MEX S functions independently generated program we can build the every independent digital control modules in MATLAB/SIMULINK for the optoelectronic tracking servo system. In the paper directly download to the hardwires we apply the C MEX S function to the design of the practical optoelectronic tracking servo system. For the speed we can design and debug the digital control modules in MATLAB/SIMULINK and then transform and download directly to DSP processor. 2010 IEEE. position loop control and TV delay compensations

Blind channel estimation of MIMO-OFDM based on FDPM (EI CONFERENCE) 会议论文 OAI收割
5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009, September 24, 2009 - September 26, 2009, Beijing, China
Gang W.; Ming Z.; Hua C.

收藏 | 浏览/下载：17/0 | 提交时间：2013/03/25

Subspace based methods have been widely discussed in multichannel estimation including MIMO-OFDM system. However direct subspace methods suffer from heavy computation complexity y of O(N3). In this paper a new subspace tracking technique called Fast Data Projection Method (FDPM) is proposed for adaptively tracking the noise subspace. The new algorithm has low complexity of O(NL) and is the only numerically stable low complexity algorithm for tracking subspaces corresponding to the smallest singular values. Simulation results show that the proposed scheme has similar performance to the original. 2009 IEEE.

Implementation and stability analysis of the fuzzy controller based on electric-driven simulation turntable (EI CONFERENCE) 会议论文 OAI收割
ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China
Xie M.-J.; Wang L.-M.; Wang Z.-Q.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

Fuzzy controller was used to resolve the problem of fast tracking and overshoot in electric-driven simulation turntable for its essence belongs to PD control In this system the control rules of fuzzy controller were established according to the step dynamic response process for the speed loop of this system was predigested to be second-orders system. The describing function method was adopted to analyze the stability of the fuzzy control system. It gave the information of stability of system intuitively. The fuzzy controller had been applied in this system successfully. The simulation turntable had no overshooting nearly when its step input signal was close to 90. Experimental results show the implementation method of fuzzy controller is not only simple but also effectual in engineering practice. It also provides an approach of design of fuzzy controller for motion control system. 2008 IEEE.

Application research of intelligent algorithm in electric-driven flight simulation turntable (EI CONFERENCE) 会议论文 OAI收割
ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China
Xie M.-J.; Wang Z.-Q.; Wang L.-M.

收藏 | 浏览/下载：38/0 | 提交时间：2013/03/25

Application Research of Intelligent Algorithm in Electric-driven Flight Simulation Turntable is discussed in this paper. Fuzzy control is used to solve the problem of fast tracking and overshoot since its essence belongs to PD control In order to improve the performance of system in low speed a method named variance-gain adaptive algorithm is introduced in this paper. It defines the amplifier gain as a function whose independent variable is speed so the amplifier gain can automatically be adjusted with the change of speed. When the turntable runs at low speed it has a big amplifier gain a good rigidity and high tracking accuracy. When the turntable runs at high speed the method can control the amplifier gain and ensure the system dynamic performance. Design and implementation of these algorithms is introduced in detail. Experiment results show that the Flight Simulation Turntable has achieved the required performance through using fuzzy control algorithm and variance-gain adaptive algorithm. 2008 IEEE.