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浏览/检索结果: 共46条，第1-10条 帮助

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A Novel Hydroforming Process by Combining Internal and External Pressures for High-Strength Steel Wheel Rims 期刊论文  OAI收割
MATERIALS, 2022, 卷号: 15, 期号: 19, 页码: 19
作者:  Chen, Wei-Jin;  Xu, Yong;  Song, Hong-Wu;  Zhang, Shi-Hong;  Chen, Shuai-Feng
  |  收藏  |  浏览/下载：21/0  |  提交时间：2023/05/09
A Novel Hydroforming Process by Combining Internal and External Pressures for High-Strength Steel Wheel Rims 期刊论文  OAI收割
MATERIALS, 2022, 卷号: 15, 期号: 19, 页码: 19
作者:  Chen, Wei-Jin;  Xu, Yong;  Song, Hong-Wu;  Zhang, Shi-Hong;  Chen, Shuai-Feng
  |  收藏  |  浏览/下载：15/0  |  提交时间：2023/05/09
High-Uniformity Calculation Method of Four-Coil Configuration in Large-Caliber Magnetic Field Immunity Testing System 期刊论文  OAI收割
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2022
作者:  Deng, Xi;  Huang, Ya;  Wan, Chenguang;  Jiang, Li;  Gao, Ge
  |  收藏  |  浏览/下载：26/0  |  提交时间：2022/12/23
Residual Stresses of Plasma Sprayed ZrC-Based Coatings during Path-by-path and Layer-by-layer Deposition: Simulation and Experimental Verification 期刊论文  OAI收割
JOURNAL OF INORGANIC MATERIALS, 2019, 卷号: 34, 期号: 7, 页码: 768
作者:  Xie Ling-Ling;  Niu Ya-Ran;  Wang Liang;  Chen Wen-Liang;  Zheng Xue-Bin
  |  收藏  |  浏览/下载：77/0  |  提交时间：2019/12/26
Seismic wavefield simulation by a modified finite element method with a perfectly matched layer absorbing boundary 期刊论文  OAI收割
JOURNAL OF GEOPHYSICS AND ENGINEERING, 2017, 卷号: 14, 期号: 4, 页码: 852-864
作者:  Meng, Weijuan;  Fu, Li-Yun
  |  收藏  |  浏览/下载：29/0  |  提交时间：2017/11/24
Effect of Zn doping on the hydrogenolysis of glycerol over ZnNiAl catalyst 期刊论文  OAI收割
journal of molecular catalysis a-chemical, 2014, 卷号: 395, 页码: 1-6
Li, Xiaoru; Zhang, Chao; Cheng, Haiyang; He,Limin; Lin,Weiwei; Yu,Yancun; Zhao,Fengyu
收藏  |  浏览/下载：90/0  |  提交时间：2015/10/20
Nickel based catalyst is of interest in the industrial catalytic processes  and it is always modified by doping a second element to improve its catalytic properties. Understanding the role of dopant is extremely helpful in tailoring the active centers. In this work  Zn could induce a significant improvement of the catalytic performance of NiAl for the hydrogenolysis of glycerol. The Zn doped ZnNiAl catalysts exhibited high activity and the improved selectivity to 1  2-propanediol  it was about 2 times higher than the original ones. The ZnNi alloy formed in ZnNiAl was responsible for the noticeable catalytic performance. They preferred to coordinate with the end hydroxyl group of glycerol  promoted the cleavage of C-O bond in glycerol  and resulted in the dominant formation of 1  2-propanediol. The findings described here will provide a useful knowledge for rational design of nickel-based catalysts  as well as reveal a new reaction model for the hydrogenolysis of glycerol. (C) 2014 Elsevier B.V. All rights reserved.  
Structural design of primary mirror subassembly for space telescope (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
作者:  Xu H.
收藏  |  浏览/下载：67/0  |  提交时间：2013/03/25
In order to design a large aperture primary mirror with the diameter of 1150 mm  the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail  including material selection  diameter-thickness ratio  the number of the support points  location selection and lightweight structure  etc. A novel space mirror structure system was put forward  and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications  Switzerland.  
Engineering analysis and research on connection plate of vehicle radar antenna pedestal (EI CONFERENCE) 会议论文  OAI收割
3rd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2012, December 11, 2012 - December 13, 2012, Hong kong
作者:  Sun H.;  Sun H.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
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：49/0  |  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.  
Null compensator testing convex freeform surface mirror with CGH technology (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Future Optical Materials and Circuit Design, FOMCD 2012, December 27, 2012 - December 28, 2012, Xiamen, China
作者:  Zhang Z.-Y.;  Zhang Z.-Y.;  Zhang B.-Z.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25