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6条,第1-6条 帮助

条数/页: 排序方式:
Nonlinear Complex Wave Excitations in (2+1)-Dimensional Klein-Gordon Equation Investigated by New Wave Transformation 期刊论文  OAI收割
MATHEMATICS, 2024, 卷号: 12
作者:  
Wu, Guojiang;  Guo, Yong;  Yu, Yanlin
  |  收藏  |  浏览/下载:10/0  |  提交时间:2024/11/20
Dynamic responses and robustness performance to moving boundary of double-stepped cable during deep-sea mining 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF NAVAL ARCHITECTURE AND OCEAN ENGINEERING, 2023, 卷号: 15, 页码: 11
作者:  
Li, Yilun;  Guo SX(郭双喜);  Guo YC(郭昱成);  Yu XQ(于小淇);  Chen WM(陈伟民)
  |  收藏  |  浏览/下载:12/0  |  提交时间:2024/01/01
The effects of alloying elements on generalized stacking fault energies, strength and ductility of gamma '-Ni3Al 期刊论文  OAI收割
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2012, 卷号: 539, 页码: 38-41
X. X. Yu; C. Y. Wang
收藏  |  浏览/下载:15/0  |  提交时间:2013/02/05
Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics 期刊论文  OAI收割
Science China-Physics Mechanics & Astronomy, 2011, 卷号: 54, 期号: 7, 页码: 1319-1327
作者:  
Jia YX;  Tang ZQ;  Jiang N(姜楠)
收藏  |  浏览/下载:20/0  |  提交时间:2012/04/01
Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.  
Comparison of acoustic propagation in several different types self-organized media 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2007, 卷号: 50, 期号: 3, 页码: 830-836
作者:  
Liu Yong-Xia;  Xu Chun-Ming;  Ning Jun-Rui
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/09/26