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Environmental fatigue correction factor model for domestic nuclear-grade low-alloy steel 期刊论文  OAI收割
NUCLEAR ENGINEERING AND TECHNOLOGY, 2021, 卷号: 53, 期号: 8, 页码: 2600-2609
作者:  
Gao, Jun;  Liu, Chang;  Tan, Jibo;  Zhang, Ziyu;  Wu, Xinqiang
  |  收藏  |  浏览/下载:39/0  |  提交时间:2021/10/15
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:152/0  |  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.  
Research of software re-injection technology for aerospace camera controller in-orbit (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
Xu W.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
For the factors of increased of tasks  enhancements of functions and improvement of integrity and complexity in aerospace camera  application system has raised high and long-term in-orbit autonomy and reliability requirements on camera controller. Based on an actual project application background  this paper has put forward a design method of new high reliability aerospace camera controller in-orbit software reinjection instruction sequence which use TSC695F as kernel CPU and process flow of bootstrap receive  cache  checkout and storage update data. Finally  combined with specific test module for camera controller software re-injection  the validity of the software re-injection method raised here has been verified. Still here gives out reference codes of update data package which generated by the ground. 2012 IEEE.  
Bootstrap loader design of aerospace payload controller based on TSC695F (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computational Intelligence and Natural Computing, CINC 2010, September 13, 2010 - September 14, 2010, Wuhan, China
Xu W.; Piao Y.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
Anti-radiation TSC695F is usually used as aerospace payload controller in tasks to ensure the aerospace payload having extremely high reliability in abominable space environment. The processor bases on SP ARC V7 architecture with parity check and EDAC  so it could design out high reliable bootstrap loader to guarantee the operation system of VxWorks and application codes loaded correctly and worked stable and high effective. First  this paper put forward the system hardware composition and boot mode which apply for aerospace payload  then it makes clear the related contents of register group initialization  stack initialization  system hardware initialization in bootstrap loader of TSC695F and give out the method to establish TRAP table. That's all through comparing different type of organize mode of program image. After that  compiling of target codes have been described and the kernel code of MakeFile had been given at the same time for reference aimed at the realization of engineering. Although this paper is based on TSC695F  but it could be extended to other embedded system based on SP ARC for bootstrap loader analysis and design  for example  the TSC697 which based on SP ARC V8 with higher performance  so this paper has extremely high engineering value. 2010 IEEE.  
Constraint dynamics and tracking control to coherence of a thermal dissipative qubit 期刊论文  OAI收割
CHINESE PHYSICS LETTERS, 2005, 卷号: 22, 期号: 12, 页码: 3009-3012
作者:  
Wang, SJ , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China.;  An, JH;  Wang, SJ;  Luo, HG
  |  收藏  |  浏览/下载:17/0  |  提交时间:2012/08/29
Systems  Design  Codes  
CCD laser collimation system (EI CONFERENCE) 会议论文  OAI收割
Proceedings of the International Symposium on Precision Mechanical Measurement, August 11, 2002 - August 16, 2002, Hefei, China
作者:  
Zhang Y.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25