中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Precursory deformation responses in different directions to catastrophic failure of uniaxially compressed sandstones 期刊论文  OAI收割
ARCHIVES OF MECHANICS, 2024, 卷号: 76, 期号: 1-2, 页码: 39-60
作者:  
Cheng, L.;  Hao SW(郝圣旺);  Lu, C.
  |  收藏  |  浏览/下载:4/0  |  提交时间:2024/12/02
Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS, 2020, 卷号: 29, 期号: 1, 页码: 86-102
作者:  
Xue J(薛健);  Hao SW(郝圣旺);  Yang R(杨荣);  Wang P;  Bai YL(白以龙)
  |  收藏  |  浏览/下载:57/0  |  提交时间:2020/03/11
非均匀介质在压缩载荷下灾变破坏的幂律奇异性前兆及灾变预测 学位论文  OAI收割
北京: 中国科学院大学, 2018
作者:  
薛健
收藏  |  浏览/下载:65/0  |  提交时间:2018/07/09
The Changeable Power Law Singularity and its Application to Prediction of Catastrophic Rupture in Uniaxial Compressive Tests of Geomedia 期刊论文  OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2018, 卷号: 123, 期号: 4, 页码: 2645-2657
作者:  
Xue J(薛健);  Hao SW(郝圣旺);  Wang J(王军);  Ke FJ(柯孚久);  Lu CS(卢春生)
收藏  |  浏览/下载:66/0  |  提交时间:2018/07/17
Power-law singularity as a possible catastrophe warning observed in rock experiments 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2013, 卷号: 60, 页码: 253-262
作者:  
Hao SW(郝圣旺);  Rong F(荣峰);  Lu MF(陆明富);  Wang HY(汪海英);  Xia MF(夏蒙棼)
收藏  |  浏览/下载:30/0  |  提交时间:2013/05/31
Uncertainty and universality in the power-law singularity as a precursor of catastrophic rupture 期刊论文  OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2012, 卷号: 55, 期号: 6, 页码: 1098-1102
作者:  
Jin Y(金渊);  Xia MF(夏蒙棼);  Wang HY(汪海英);  Wang, HY
收藏  |  浏览/下载:39/0  |  提交时间:2013/01/18
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:18/0  |  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.