中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共8条,第1-8条 帮助

条数/页: 排序方式:
Improved Reliability of Planar Power Interconnect With Ceramic-Based Structure 期刊论文  OAI收割
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2018, 卷号: 6, 期号: 1, 页码: 175, 187
作者:  
Zhang, Hui;  Li, Jianfeng;  Dai, Jingru;  Corfield, Martin;  Liu, Xuejian
  |  收藏  |  浏览/下载:42/0  |  提交时间:2018/12/28
Design and preparation of shape-stabilized composite phase change material with high thermal reliability via encapsulating polyethylene glycol into flower-like TiO2 nanostructure for thermal energy storage 期刊论文  OAI收割
APPLIED THERMAL ENGINEERING, 2017, 卷号: 114, 页码: 328-336
作者:  
Deng, Yong;  Li, Jinhong;  Nian, Hongen;  Li, Yali;  Yin, Xiaoping
  |  收藏  |  浏览/下载:18/0  |  提交时间:2018/06/20
Thermal properties and reliability of eutectic mixture of stearic acid-acetamide as phase change material for latent heat storage 期刊论文  OAI收割
JOURNAL OF CHEMICAL THERMODYNAMICS, 2017, 卷号: 106, 页码: 178-186
作者:  
Ma, Guixiang;  Han, Lipeng;  Sun, Jinhe;  Jia, Yongzhong
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/06/20
Collimator at end of ring to target beam transport 期刊论文  OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 5, 页码: 55104
作者:  
Wang ZH(王梓豪);  Qu HM(屈化民);  Zhu DH(朱东辉);  Wang HJ(王海静);  Wang
收藏  |  浏览/下载:28/0  |  提交时间:2016/04/18
Study on ultra-light secondary baffle for coaxial two-mirror telescope (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:  
Zhang L.;  Zhang L.
收藏  |  浏览/下载:62/0  |  提交时间:2013/03/25
The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope  the structure should have high stiffness and high reliability and light weight. Compared with invar  aluminum alloy and titanium alloy  carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper  optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm  total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages  such as ultra-light weight  high stiffness and dimensional stability  etc. The optimization method and the baffle design can be helpful to other coaxial telescopes  such as Cassegrain  Gregorian and their subdivisions. 2012 IEEE.  
Damage tolerance of nanolayer grained ceramics and quantitative estimation 期刊论文  OAI收割
Materials Science and Technology, 2006, 卷号: 22, 期号: 2, 页码: 227-230
Y. W. Bao; C. F. Hu; Y. C. Zhou
收藏  |  浏览/下载:30/0  |  提交时间:2012/04/13
The replacement of dry heat in generic reliability assurance requirements for passive optical components (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Zhang G.;  Zhang G.;  Zhang G.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
According to Generic Reliability Assurance Requirements for Passive Optical Components GR-1221-CORE (Issue 2  January 1999)  reliability determination test of different kinds of passive optical components which using in uncontrolled environments is taken. The test condition of High Temperature Storage Test (Dry Test) and Damp Test is in below sheet. Except for humidity condition  all is same. In order to save test time and cost  after a sires of contrast tests  the replacement of Dry Heat is discussed. Controlling the Failure mechanism of dry heat and damp heat of passive optical components  the contrast test of dry heat and damp heat for passive optical components (include DWDM  CWDM  Coupler  Isolator  mini Isolator) is taken. The test result of isolator is listed. Telcordia test not only test the reliability of the passive optical components  but also test the patience of the experimenter. The cost of Telcordia test in money  manpower and material resources  especially in time is heavy burden for the company. After a series of tests  we can find that Damp heat could factually test the reliability of passive optical components  and equipment manufacturer in accord with component manufacture could omit the dry heat test if damp heat test is taken first and passed.  
Lifetime of solder joint and delamination in flip chip assemblies 期刊论文  OAI收割
2004 INTERNATIONAL CONFERENCE ON THE BUSINESS OF ELECTRONIC PRODUCT RELIABILITY AND LIABILITY, PROCEEDINGS, 2004, 页码: 174-186
Cheng, ZN
收藏  |  浏览/下载:33/0  |  提交时间:2012/03/24