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Spectroscopic analysis of the arc plasma during activating flux tungsten inert gas welding process 期刊论文
Journal of Manufacturing Processes, 2022, 卷号: 75, 页码: 919-927
作者:  Li, Chunkai;  Dai, Yue;  Gu, YuFen;  Shi, Yu
收藏  |  浏览/下载：32/0  |  提交时间：2022/04/21
Influence of gear transmission high-speed rotating flow field on deviation effect of spray jet [齿轮传动旋转流场对喷油射流甩离的影响] 期刊论文
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition), 2019, 卷号: 49, 页码: 124-132
作者:  Wang, Y.-Z.;  Song, G.-H.;  Nin, W.-T.;  Chen, Y.-Y.
收藏  |  浏览/下载：5/0  |  提交时间：2019/12/30
Effect of particle parameters on flow field and erosion wear characteristics of flow passage components in screw centrifugal pump 期刊论文
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2018, 卷号: 34, 期号: 6, 页码: 58-66
作者:  Shen, Zhengjing;  Chu, Wuli;  Dong, Wei
收藏  |  浏览/下载：8/0  |  提交时间：2020/11/14
Research on automated micro-liquid dispensing technology 期刊论文
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2013, 卷号: 49, 期号: [db:dc_citation_issue], 页码: 140-153
作者:  Yao, Yufeng;  Lu, Shizhou;  Liu, Yaxin;  Sun, Lining
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/10
Numerical simulations and optimization of a micro annular combustor 期刊论文
2010, 2010
Yuan Youzhi; Wang Liping; Guan Liwen
收藏  |  浏览/下载：1/0
Space optics remote sensor focusing components mechanics characteristic analysis based on FEM (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, June 17, 2009 - June 19, 2009, Beijing, China
Wang Y.-X.; Wang B.; Ren J.-Y.
收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25
Space optical remote sensor is very important in many fields of science and military significance. It is widely applied. Space optical remote sensor design and manufacturing require precision and stability. Focusing mechanics is an important component of remote sensors. Focusing mechanics can guarantee the stability of the entire mechanics focusing accuracy  therefore the stability of research focusing mechanics is very important. In order to guarantee the space optics remote sensor focusing mechanics the stability  takes steps the space optics remote sensor focusing organization mechanics characteristic analysis from the classics contact theory. This article uses international general non-linear finite element analysis software ABAQUS to carry on mechanics characteristic analysis to the space optics remote sensor focusing mechanics. First acts according to the focusing mechanics unique feature  carries on the finite element to the structural model the grid division  the material attribute disposition and the boundary condition indeed grades. Then establishment contact non-linear finite element model  and to focusing organization finite element model infliction unit action. Like this contacts the result and the equivalent static analysis result which the nonlinear analysis obtains carries on the contrast and the analysis. This article last count result modality is 90HZ  satisfies the space optics remote sensor structure overall modality to request to be bigger than 50HZ.This article when carries on the dynamic analysis  extracts the structure kinetic energy and the acceleration curve. In the dynamic analysis obtained transient response analysis modality 70.5Hz  this also is bigger than 50HZ. The dynamic analysis indicated the structure dynamic stability has the distinct enhancement  has provided certain foundation for the space optics remote sensor following development work  reduced the overall system development cycle. 2009 SPIE.  
The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology (EI CONFERENCE) 会议论文
Optical System Alignment and Tolerancing II, August 10, 2008 - August 11, 2008, San Diego, CA, United states
Yan F.; Zhang X.-J.
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
The wavefront coding technology is known as a system-level technology which can extend the depth of focus of optical system by innovative optical design and image restoration. This technology can control misfocus related aberrations including misfocus  astigmatism  and Petzval curvature  temperature-related misfocus in digital imaging systems. It can also help optical system tolerate more residual error in optical manufacturing and alignment besides misfocus. The brief introduction of wavefront coding technology and the wavefront coded TMA system under research is presented respectively in part 1 and part 2. The "MTF similarity" is defined to describe the relationship among MTF at different position or different fields in the third part. It is also shown in this part that the MTF similarity of wavefront coded system is much higher than the normal system within a large range. In part 4 comparison between the origin system and the new system with wavefront coding technology is provided after multiple errors are introduced  from which it can be observed that the system with wavefront coding technology can tolerate much bigger error than origin system. The error tolerance is re-distributed according to a new criterion based on MTF similarity. If the MTF similarity is less than a certain value  it can be regarded that the system can tolerate the residual error. The new error tolerance is displayed and it is shown that the wavefront coding technology can also loosen the error distributing besides extended the depth of focus.  

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