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Adaptive Fault Tolerant Control of Multi-time-scale Singularly Perturbed Systems 期刊论文  OAI收割
International Journal of Automation and Computing, 2018, 卷号: 15, 期号: 6, 页码: 736-746
作者:  
Adel Tellili;  Nouceyba Abdelkrim;  Amina Challouf;  Mohamed Naceur Abdelkrim
  |  收藏  |  浏览/下载:16/0  |  提交时间:2021/02/23
Accuracy synthesis of a 3-RPS parallel robot based on manufacturing costs (EI CONFERENCE) 会议论文  OAI收割
31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China
Yao T.-K.; Xi Z.; Feng Z.; Zhang L.-M.; Yong W.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
Pose accuracy is an important issue for parallel robot being used as mirror supporting system of telescope. One challenging topic is the accuracy synthesis which deals with the optimal design of the manufacturing and assembling tolerances of each component under the given pose accuracy. First  the error model of the 3-RPS parallel robot is built based on total derivation of the kinematic equations. And the error variable of each spherical or rotate joint can be expressed as a single boundary error parameter but not three independent position parameters. Then  the accuracy synthesis model is formulated taking the manufacturing costs as the optimization objective and the accuracy requirements as the constraint condition. Finally  the genetic algorithm is used to solve the optimization problem and a simulation example is given. The results show that the accuracy synthesis method based on manufacturing costs can satisfy the need of pose accuracy and is better for engineering application than the method based on error sensitivity. 2012 Chinese Assoc of Automati.  
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:30/0  |  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.  
Multi-scale Equations for Compressible Turbulent Flows 期刊论文  OAI收割
Journal of Shanghai University, 2004, 期号: 3, 页码: 241-244
作者:  
Gao Z(高智);  Zhuang FG(庄逢甘)
收藏  |  浏览/下载:29/0  |  提交时间:2015/09/14
Incompressible Laminar Flow Over a Three-Dimensional Rectangular Cavity 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2000, 卷号: 9, 期号: 3, 页码: 199,204
H. Yao; R. K. Cooper; S. R. Raghunathan
收藏  |  浏览/下载:14/0  |  提交时间:2013/03/12
ON THE EXPLICIT COMPACT SCHEMES II: EXTENSION OFTHE STCE/CE METHOD ON NONSTAGGERED GRIDSON THE EXPLICIT COMPACT SCHEMES II: EXTENSION OFTHE STCE/CE METHOD ON NONSTAGGERED GRID 期刊论文  OAI收割
计算数学:英文版, 2000, 卷号: 000, 期号: 005, 页码: 467-480
作者:  
Wu Huamu;  Tang Huazhong
  |  收藏  |  浏览/下载:9/0  |  提交时间:2021/01/14