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Oscillation design of sampling proportional-derivative sliding-mode systems for linear plants with hysteresis 期刊论文  OAI收割
ADVANCES IN MECHANICAL ENGINEERING, 2016, 卷号: 8, 期号: 11, 页码: 1-12
作者:  
Shen, Yu;  Su S(苏顺)
  |  收藏  |  浏览/下载:11/0  |  提交时间:2017/01/05
A method of CAE for calculating the temperature tolerance of telescope (EI CONFERENCE) 会议论文  OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
Xie S.; Zhu X.; Li Q.; Chen C.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
In order to obtain high quality pictures  the thermal design is necessary for the space telescope. The designed temperature scope should meet to the permissible temperature tolerance of the telescope. A method for calculating the permissible temperature tolerance of the telescope is studied. The calculating temperature tolerance will be targeted for space thermal environment adaptive structure design and thermal design. A method for describing the temperature fields of the telescope is introduced. The descriptive temperature fields are able to include every temperature states that the telescope endured on orbit. When the MTF (Modulation Transfer Function) just meet to the optical indicator  the ultimate temperature tolerance of the space telescope is obtained  that is  the aim temperature scope for the thermal design is obtained. 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:22/0  |  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.