中国科学院机构知识库网格
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A New Dominance Distribution Method to Select Materials with Higher Fatigue Resistance under Property Scatter and Load Uncertainty 期刊论文  OAI收割
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2022, 页码: 10
作者:  
Bai, X.;  Zhang, P.;  Wang, Q.;  Liu, R.;  Zhang, Z. J.
  |  收藏  |  浏览/下载:39/0  |  提交时间:2022/07/14
Effects of Solidification Conditions on the Crystal Selection Behavior of an Al Base Alloy During Directional Solidification 期刊论文  OAI收割
MICROGRAVITY SCIENCE AND TECHNOLOGY, 2016, 卷号: 28, 期号: 2, 页码: 109-113
Liu, Jin-lai; Jin, Tao; Luo, Xiong-hong; Feng, Shao-bo; Zhao, Jiu-zhou
收藏  |  浏览/下载:22/0  |  提交时间:2016/08/22
Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China
作者:  
Li Z.;  Li Z.
收藏  |  浏览/下载:40/0  |  提交时间:2013/03/25
Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness  strength and thermal dimensional stability  some factors such as support scheme  materials selection  lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge  influences of gravity  assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5C uniform temperature rise respectively  the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz  which shows an error less than 5% compared to FEA results. (2013) Trans Tech Publications  Switzerland.  
Materials selection in mechanical design for microsensors and microactuators 期刊论文  OAI收割
Materials & Design, 2002, 卷号: 23, 期号: 7, 页码: 619-632
作者:  
Qian J(钱劲);  Zhao YP(赵亚溥)
收藏  |  浏览/下载:921/37  |  提交时间:2009/08/03