中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	Non-Linear Dynamic Analysis on Hybrid Air Bearing-Rotor System under Ultra-High Speed Condition 期刊论文 OAI收割 Materials, 2022, 卷号: 15, 期号: 2, 页码: 20 作者: L. Y. Song; G. Q. Yuan; H. W. Zhang; Y. L. Ding and K. Cheng \| 收藏 \| 浏览/下载：1/0 \| 提交时间：2023/06/14
	Research on high performance support technology of space-based large aperture mirror 期刊论文 OAI收割 Optik, 2021, 卷号: 226, 期号: 17 作者: K. J. Wang; J. H. Dong; Y. Zhao; C. Y. Chi; P. Jiang and X. Y. Wang \| 收藏 \| 浏览/下载：5/0 \| 提交时间：2022/06/13
	超声强化液固传质动力学模型与硅中阶梯光栅湿法刻蚀技术研究学位论文 OAI收割博士: 中国科学院大学, 2014 焦庆斌收藏 \| 浏览/下载：54/0 \| 提交时间：2014/08/21
	United steering of control moment gyros for small satellite with limited gimbal rate (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China Xu K.; Jin G.; Chen C. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 Single Gimbal Control Moment Gyroscopes (SGCMG) can could provide large control torque and quick attitude maneuver rate to small satellites without any increase in power volume and mass which will help small satellites become more powerful. Singularity avoidance and failure steering are two important problems to SGCMGs and also the main focus in this field. A new united steering law for SGCMGs with capabilities of singularity avoidance and quick transition of singularity surfaces is developed in this paper. To ensuring the existence of null motion the commanded output of controller was changed real-timely as the variation of singularity measurement of SGCMGs which can avoid the gimbal angle rate saturation. This developed steering law could help the SGCMGs provide real-time control toques in spite of limitation of gimbal angle rate. Simulation analysis is conducted for a certain 4-SGCMG system mounted on a small satellite. Simulation results indicate that the steering law is very effective in singularity avoidance. 2010 IEEE.