中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A lattice Boltzmann method for viscous free surface waves in two dimensions 期刊论文  OAI收割
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2013, 卷号: 71, 期号: 2, 页码: 223-248
[Zhao, Zhuangming; Huang, Ping] Sun Yat Sen Univ, Sch Environm Sci & Engn, Dept Environm Sci, Guangzhou 510275, Guangdong, Peoples R China; [Li, Yineng; Li, Junmin] Chinese Acad Sci, S China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
收藏  |  浏览/下载:39/0  |  提交时间:2015/01/14
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:30/0  |  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.  
Vertical 2D modeling of free surface flow with hydrodynamic pressure using SIMPLE arithmetic in sigma coordinates 期刊论文  OAI收割
china ocean engineering, 2004, 卷号: 18, 期号: 1, 页码: 79-92
作者:  
Wu, XG;  Shen, YM;  Zheng, YH
收藏  |  浏览/下载:25/0  |  提交时间:2016/10/27