中国科学院机构知识库网格系统: 检索

Large-scale field tunnel model experience and time-dependent floor heave induced by humidification 期刊论文 OAI收割
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2024, 卷号: 145, 页码: 18
作者: Chang, Zhou; Yan, Changgen; Xie, Wanye; Lu, Zhifang; Lan, Hengxing

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收藏 | 浏览/下载：48/0 | 提交时间：2024/04/01

Loess tunnel Field model test Humidification Floor heave Time -dependency model

大气光学湍流模式研究:C_n~2廓线模式 期刊论文 OAI收割
物理学报, 2023, 卷号: 72
作者: 吴晓庆; 杨期科; 黄宏华; 青春; 胡晓丹

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收藏 | 浏览/下载：15/0 | 提交时间：2023/11/10

atmospheric optical turbulence modified CLEAR I night model C_n~2 profile model of 5 field test site suspicion of the H-V(5/7)model 大气光学湍流修正的CLEAR I夜晚模式 5个实验点C_n~2廓线公式 H-V(5/7)模式的存疑

Optimal Design Method to Improve the Magnetic Field Distribution of Multiple Square Coil Systems 期刊论文 OAI收割
IEEE ACCESS, 2020, 卷号: 8
作者: Huang, Ya; Jiang, Li; Fu, Peng; Huang, Zhengyi; Xu, Xuesong

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收藏 | 浏览/下载：53/0 | 提交时间：2020/11/30

Magnetic fields Optimization Mathematical model Taylor series Conductors Design methodology Power electronics Error analysis immunity test magnetic field uniformity multiple square coil systems

Displacement characteristic of landslides reinforced with flexible piles: field and physical model test 期刊论文 OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2020, 卷号: 17, 期号: 4, 页码: 787-800
作者: Zhou Chang; Hu Xin-li; Zheng Wen-bo; Xu Chu; Wang Qiang

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收藏 | 浏览/下载：22/0 | 提交时间：2020/11/12

Pile-soil interaction Field trail Physical model test Soil arching Displacement characteristics Three Gorges Reservior

Studies of Deformation Properties of Collapsible Loess Foundation under Overburden Pressure with Large Thickness by Centrifugal Model Test 会议论文 OAI收割
Dalian, 2019-9-28～29
作者: Jin,Songli; Xing,Yichuan

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收藏 | 浏览/下载：86/0 | 提交时间：2020/03/10

loess collapse under overburden pressure centrifugal model test field immersion test

Ecological Research on the Cracks Evolution Mechanism of Coal -Rock Mass in Deep Coal Mine 期刊论文 OAI收割
EKOLOJI, 2019, 卷号: 28, 期号: 107, 页码: 4537-4543
作者: Liu, Bin; Li, Jinlan; Kang, Yongshui

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收藏 | 浏览/下载：21/0 | 提交时间：2020/04/08

coal-rock mass gas drainage crack evolution mechanism AE technique model test stopping method fracture zone shape stress field crack features of fracture zone

AC Loss Analysis of Central Solenoid Model Coil for China Fusion Engineering Test Reactor 期刊论文 OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2016, 卷号: 26, 期号: 7, 页码: 5900505
作者: Zhou, Wei; Fang, Jin; Liu, Bo; Fang, Xinyu; Liu, Yanchao

收藏 | 浏览/下载：25/0 | 提交时间：2017/07/13

Ac Loss Central Solenoid Model Coil (Csmc) China Fusion Engineering Test Reactor (Cfetr) Magnetic Field Distribution

Double inverted pendulum control based on three-loop PID and improved BP neural network (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Digital Manufacturing and Automation, ICDMA 2011, August 5, 2011 - August 7, 2011, Zhangjiajie, Hunan, China
作者: Fan Y.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

To deal with the defects of BP neural networks used in balance control of inverted pendulum such as longer train time and converging in partial minimum this article reaLizes the control of double inverted pendulum with improved BP algorithm of artificial neural networks(ANN) builds up a training model of test simulation and the BP network is 6-10-1 structure. Tansig function is used in hidden layer and PureLin function is used in output layer LM is used in training algorithm. The training data is acquried by three-loop PID algorithm. The model is learned and trained with Matlab calculating software and the simuLink simulation experiment results prove that improved BP algorithm for inverted pendulum control has higher precision better astringency and lower calculation. This algorithm has wide appLication on nonLinear control and robust control field in particular. 2011 IEEE.

Buffer and vibration optimization of missile data recorder structure (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronics and Materials Processing, ICMMP 2011, November 18, 2011 - November 20, 2011, Guangzhou, China
作者: Zhang J.; Zhang J.; Zhang J.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

On the analysis of the original data recorder the stress wave theory is the elastic theory can explain the filter buffer question from the micro-small space made several key problems clear when buffer and damping from this designed a composite structure for vibration reduction distinguished between a cushion theory and application field of stress wave theory which made the dynamic stress of protected component down about one order of magnitude. Optimization with Isight and Ls-dyna the traditional rigid spring-buffer model whose object is to reduce the impact of acceleration that can not accurately describe the elastic force of the part of the actual situation the protected component's dynamic stress down about 69.3% and the data recorder's quality 300g lower finally passed the Marshall Hammer test successfully. 2011 Trans Tech Publications.

Modular aircraft simulation platform based on simulink (EI CONFERENCE) 会议论文 OAI收割
2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China
Chen C.-Q.; Ji Y.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

Aircraft simulation platform is the most important supporting technology in the aircraft development process. This simulation platform can be used for validating the design of subsystem and also it provides the necessary data for the Aircraft design. Wind has great impact on the flight parameter. In order to accurately simulate the wind model and calculate the flight parameters a simulation modeling method for flight parameter simulation platform under wind field environment is established. Firstly the various sub-systems which affecting flight parameters are analyzed some mathematical models of the flight parameter simulation platform is established. Secondly the atmospheric wind field is studied to analyze the impact on its trajectory. Then the model is built in the Simulink toolbox in the Matlab which is based on the principles of hierarchy and modularity using C MEX S-function for the complex kinetic equations. Finally when the models have been established encapsulating models for several subsystem and assembling them for the Aircraft simulation platform based on the unified interface. The simulation tests (including the performance test of a certain gliding Aircraft the wind influence test of a certain uncontrolled aircraft) prove the simulation capability of the platform and its calculating step can reach 1 ms. Comparing simulation with field test data of a certain uncontrolled aircraft it shows that the relative deviation of range is 0.47% the relative deviation of maximal altitude is 2.1%. Taking relevant standards as a reference standard it is demonstrated the platform is reliable meets the engineering accuracy requirements. 2010 IEEE.