中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共11条,第1-10条 帮助

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AAC theory for ultrasonic vibration-assisted grinding 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2024, 页码: 12
作者:  
Hu, Zhongwei;  Chen, Yue;  Lai, Zhiyuan;  Zhang, Yuqiang;  Yu, Yiqing
  |  收藏  |  浏览/下载:98/0  |  提交时间:2024/06/27
Numerical study on flow-induced vibration characteristics of three-dimensional hydrofoil in cavitating flow 会议论文  OAI收割
San Francisco, CA, United states, July 28, 2019 - August 1, 2019
作者:  
Wang C(王畅);  Liu YQ;  Du TZ(杜特专);  Wang YW(王一伟)
  |  收藏  |  浏览/下载:22/0  |  提交时间:2020/11/20
Effect of vibration on the separation efficiency of high-sulfur coal in a compound dry separator 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2016, 卷号: 157, 页码: 195-204
作者:  
Yu, Xiaodong;  Luo, Zhenfu;  Li, Haibin;  Yang, Xuliang;  Zhou, Enhui
收藏  |  浏览/下载:41/0  |  提交时间:2017/03/22
Effects of a higher Reynolds number and introduced perforation on flows past the conic cylinder 会议论文  OAI收割
25th International Ocean and Polar Engineering Conference, ISOPE 2015, Kona, Big Island, HI, United states, June 21, 2015 - June 26, 2015
作者:  
Lin LM(林黎明);  Zhong XF(钟兴福);  Wu YX(吴应湘)
收藏  |  浏览/下载:26/0  |  提交时间:2017/05/05
Dynamic two-dimensional nonlinear vibration modeling and analysis for shield TBM cutterhead driving system 期刊论文  OAI收割
Transactions of the Canadian Society for Mechanical Engineering, 2014, 卷号: 38, 期号: 4, 页码: 417-463
作者:  
Li XH(李先宏);  Yu HB(于海斌);  Zeng P(曾鹏);  Yuan MZ(苑明哲);  Sun LX(孙兰香)
收藏  |  浏览/下载:19/0  |  提交时间:2015/02/04
Reliability of Vibration Transfer Path Systems 会议论文  OAI收割
International Conference on Advanced Engineering and Technology (ICAET 2014), Incheon, South Korea, December 19-21, 2014
作者:  
Zhao W(赵薇);  Chen P(陈平);  Zhang YM(张义民)
收藏  |  浏览/下载:28/0  |  提交时间:2015/12/13
Analysis of safety control parameters for the 3#, 4# nuclear islands foundation blasting excavation in Dalian nuclear power plant 期刊论文  OAI收割
DISASTER ADVANCES, 2013, 卷号: 6, 页码: 233-239
作者:  
Yu, Chong;  Li, Haibo;  Xia, Xiang
  |  收藏  |  浏览/下载:19/0  |  提交时间:2018/06/05
Design of stable image platform on airborne camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
作者:  
Yang L.;  Yang L.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25
Modulation transfer function resulting from random vibration was analyzed. To conclude that the effect of angular displacement was the major factor. Allowable MTF degradation was represented  and 34dB reduction was achieved at frequency of 100HZ. With the help of MSC.ADAMS simulation software  and convert allowable MTF degradation into stable system design parameters  simulated curve proves correct for isolator  which can guide perfect design for stabilization system. Based on the spatial mechanism and translational principle of parallelogram  and the irrotational displacement mechanism was tested by optical method  an irrotational displacement isolator was developed. It can meet the requirements of irrotational displacement and damp. An instance was given  coupled angle is less than 8?  it can satisfy the demand of aerial imaging. (2011) Trans Tech Publications.  
Analysis of measuring errors for the visible light phase-shifting point diffraction interferometer (EI CONFERENCE) 会议论文  OAI收割
2010 OSA-IEEE-COS Advances in Optoelectronics and Micro/Nano-Optics, AOM 2010, December 3, 2010 - December 6, 2010, Guangzhou, China
作者:  
Zhang Y.
收藏  |  浏览/下载:13/0  |  提交时间:2013/03/25
In order to improve the measuring accuracy of the visible light phase-shifting point diffraction interferometer (PS/PDI) for the extreme ultraviolet lithography (EUVL) aspheric mirrors  the main measuring errors will be discussed in this paper. At first  the elementary configuration and measuring principle of the visible light phase-shifting point diffraction interferometer are introduced briefly  then the different errors which are possible to affect the measuring result are summed up  the errors include PZT phase-shifting error  detector nonlinearity error  detector quantization error  wavelength instability error and intensity instability error of the laser source  vibration error  air refractivity instability error and so on. Through detailed analysis and simulation  the magnitude of these errors can be obtained. By analysing the reasons which cause these errors and the relationship between these errors and interferometer configuration parameters  some methods are put forward to avoid or restrain these errors accordingly.  
Parameter identification of airborne vibrated image based on high-speed CCD (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Shi J.; Xue X.; Guo Y.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
In order to identify the vibration parameters of a vibrated image  the principle and shortage of the traditional methods that based on image derivative and image transformation are analyzed  and a new parameter identification method is proposed afterward. By placing a high-speed CCD aside the master CCD  the vibration can be sampled accurately  and more information can be obtained for parameter identification. The series frames that captured by high-speed CCD are processed by gray projection algorithm and the vibration extents between adjacent frames along x and y direction are obtained. By using simple triangle operations  the vibration parameters can be identified  and the computational complexity of which can be reduced greatly. The experiment shows that the parameter identification method based on high-speed CCD can identify the parameters of vibration with any form accurately. The precise of parameter identification for linear vibration is less than 2.95%. 2010 IEEE.