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浏览/检索结果: 共6条，第1-6条 帮助

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Semi-analytical model for elastoplastic impact of sphere on plate 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2025, 卷号: 198
作者:  Wang YC(王宇驰);  Peng, Qing;  Song HX(宋恒旭);  Wei, YueGuang;  Liu XM(刘小明)
  |  收藏  |  浏览/下载：3/0  |  提交时间：2025/07/21
Effect of the soil-implement contact area on soil translocation under hoeing tillage 期刊论文  OAI收割
SOIL & TILLAGE RESEARCH, 2018, 卷号: 183, 页码: 42-50
作者:  Zhang, J. H.;  Jia, L. Z.;  Zhang, Z. H.;  Wei, Y. H.;  Wang, Y.
  |  收藏  |  浏览/下载：37/0  |  提交时间：2018/08/30
Analysis of spherical indentation of materials with plastically graded surface layer 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2012, 卷号: 49, 期号: 3-4, 页码: 527-536
作者:  
收藏  |  浏览/下载：116/0  |  提交时间：2013/01/18
Indentation of power law creep solids by self-similar indenters 期刊论文  OAI收割
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2010, 卷号: 527, 期号: 21-22, 页码: 5613-5618
作者:  Chen WM(陈伟民);  Cheng YT;  Li M(李敏);  Chen WM
收藏  |  浏览/下载：64/0  |  提交时间：2011/03/01
A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:  Sun Y.;  Sun Y.;  Wan Q.-H.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid  according to the difficulties of the detection of the magnetic fluid  established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all  the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer  collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid  which followed the movement of the magnetic fluid  and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA  whose width and depth were designed by the user as required. Then  the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus  whose transmission rate can reach 480Mb/s in theory. Finally  the distribution of the laser speckle on the magnetic fluid was messy and random  which carried certain information about the surface of the magnetic fluid  based on the theories of the statistic correlation and the subdivision of images  analysing and processing the laser speckle interferometric images  indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court  non-contact  non-invasive  high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps  which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.  
MD simulation of the effect of contact area and tip radius on nanoindentation 期刊论文  OAI收割
Science in China Series G-Physics Astronomy, 2004, 卷号: 47, 期号: 1, 页码: 101-112
作者:  Chen SD;  Ke FJ(柯孚久)
收藏  |  浏览/下载：784/51  |  提交时间：2009/08/03