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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
力学研究所 [1]
合肥物质科学研究院 [1]
广州能源研究所 [1]
采集方式
OAI收割 [5]
内容类型
期刊论文 [3]
会议论文 [2]
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2023 [1]
2020 [2]
2013 [1]
2011 [1]
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Design and Analysis of High Temperature Superconducting Current Leads for CRAFT TF Magnet
期刊论文
OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2023, 卷号: 33
作者:
Han, Quan
;
Lu, Kun
;
Song, Yuntao
;
Ding, Kaizhong
;
Liu, Chen
  |  
收藏
  |  
浏览/下载:75/0
  |  
提交时间:2023/11/10
Analysis
Comprehensive Research Facility for Fusion Technology (CRAFT)
high-temperature superconducting current leads (HTSCL)
structure design
toroidal field (TF) magnet
Study on heat transfer and fluidity of three-dimensional invisible finned-tube
期刊论文
OAI收割
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2020, 页码: 12
作者:
Mo, X.
;
Zhu, D. S.
;
Wang, F. Y.
;
Yin, Y. D.
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2020/10/30
Enhanced tube
Heat transfer
Convection
Design
Three-dimensional invisible finned-tube
Comprehensive performance evaluation factor
An sequential optimization and aeroelastic constraint transformation method for strength-aeroelastic comprehensive design
期刊论文
OAI收割
JOURNAL OF FLUIDS AND STRUCTURES, 2020, 卷号: 93, 页码: 14
作者:
Zhang ZS
;
Wang XJ
;
Chen XJ(陈贤佳)
;
Chen XJ(陈贤佳)
  |  
收藏
  |  
浏览/下载:53/0
  |  
提交时间:2020/04/07
Comprehensive design
Sequential optimization strategy
Airplane wing
Structural strength
Aeroelasticity
LABTM control system based on FPGA (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
作者:
Wang Y.
;
Yu P.
;
Yu P.
;
Wang Y.
;
Wang Y.
收藏
  |  
浏览/下载:160/0
  |  
提交时间:2013/03/25
This paper presents the digital PI control method for design and simulation of a high precision limited angle brushless torque motor control system in Field Programmable Gate Array device (FPGA). The direct drive structures which are widely applied in many servo control fields. Matlab Xilinx System GeneratorR toolbox based on Fixed-Point Arithmetic is used to design the digital PI controller using DSP architecture
plot the responses of the control system and generate the VHDL source code. The control system model consists of a digital PI
a real LABTM
and a real absolute Inductosyn
encoder to rpm and position blocks. Through loading generated codes in process of the simulation that built by the digital discrete model
it is verified that the rising time of current loop is only 1.2ms
and rate loop is 8ms
overshoot is rarely 4.2%. Finally
the comprehensive positioning accuracy of system can reach up to 5 arc sec
and the rate jitter achieves 5% with the 4 arc sec accuracy absolute Inductosyn. (2013) Trans Tech Publications
Switzerland.
Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Zhang Z.-D.
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2013/03/25
Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications
on the other
which should be calculated
calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not
analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors
without considering the effect of the background radiation. By improving of the traditional method
including atmospheric attenuation
a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method
the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand
we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end
the dispersion of the image and the effect of image dispersion are not considered in the traditional method
an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).