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The effects of interfaces stability on mechanical properties, thermal conductivity and helium irradiation of V/Cu nano-multilayer composite 期刊论文  OAI收割
MATERIALS & DESIGN, 2022, 卷号: 216
作者:  
Zhang, L. F.;  Gao, R.;  Hou, J.;  Zeng, L. F.;  Xin, J. J.
  |  收藏  |  浏览/下载:28/0  |  提交时间:2022/12/23
Reaction-Wheel-Based Roll Stabilization for a Robotic Fish Using Neural Network Sliding Mode Control 期刊论文  OAI收割
IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2020, 卷号: 25, 期号: 4, 页码: 1904-1911
作者:  
Zhang, Pengfei;  Wu, Zhengxing;  Dong, Huijie;  Tan, Min;  Yu, Junzhi
  |  收藏  |  浏览/下载:42/0  |  提交时间:2020/09/28
The application of charge transfer host based exciplex and thermally activated delayed fluorescence materials in organic light-emitting diodes 期刊论文  OAI收割
Organic Electronics, 2019, 卷号: 66, 页码: 227-241
作者:  
Z.Q.Wang;  C.Wang;  H.Zhang;  Z.M.Liu;  B.Zhao
  |  收藏  |  浏览/下载:34/0  |  提交时间:2020/08/24
Research on model reference sliding mode control in roll stabilization of aerocraft (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
Chu H.-R.
收藏  |  浏览/下载:39/0  |  提交时间:2013/03/25
Aimed at aerospace roll stabilization  control arithmetic based on model reference sliding mode variable structure theory and chattering reduction arithmetic are formulated. Correctness and validity of arithmetic are analyzed. With flight dynamics  the roll-loop mathematic model and reference model are established. Sliding hyperplane is deduced based on model reference sliding mode variable structure theory. Combing with reaching law  control law is derived  and stability of roll-loop is analyzed. Chattering of aileron instructions is alleviate by using boundary layer approach. Digital flying simulation result shows that variable structure control arithmetic realized roll stabilization control  the roll angle is less than 5.3 under powered flight  and that of unpowered flight is less than 0.5  respectively. The command fin angle is less than 1.5. High frequency chattering of fin command nearby the minimum velocity was trailed off by chattering reduction arithmetic. The sliding mode control arithmetic show good performance when aerodynamic coefficients varies 20%. The control arithmetic is easy to be implemented for its simplicity. 2011 IEEE.  
Control method research on wide flight envelope aerocraft (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者:  
Duan Z.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
The flying qualities of aerocraft was directly effected by the autopilot  for the wide flight envelope aerocraft  on the basic of analyzing the typical trajectory  the three loop autopilots of roll stability  pitch and yaw were designed  using single-mode Transient suppression method  the overload due to control surface transition deflection was avoided when control parameters changing  the verification was done by non-linear simulation. The result showed that: Under the action of the disturbance torque  the maximum roll was less than 5  the range of the aerocraft was from 13.5km to 22.4km  the max height was about 5100m  the max deviation of lateral was about 42m  the maximum elevator deflection was less than 6.5 the control law was applicable within the effective range. An autopilot design method of wide flight envelope aerocraft was provided. 2011 IEEE.