QQ客服 官方微博 反馈留言

浏览/检索结果: 共5条，第1-5条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Improved vector extrapolation based Richardson-Lucy algorithm used for wavefront coded imaging and experimental demonstration 会议论文 Munich, Germany, 2019-06-24 作者:  Zhao, Hui;  Xia, Jingjing;  Zhang, Ling;  Yu, Congcong;  Fan, Xuewu 收藏  |  浏览/下载：35/0  |  提交时间：2019/11/27 wave-front coding  computational imaging  Richardson-Lucy algorithm  vector extrapolation   Optimum design of flexible support structure for space mirror 会议论文 Beijing, China, 2019-07-07 作者:  Sun, Li Jun;  Zhang, Yuan Qing;  Li, Si Yuan;  Zhang, Zhao Hui;  Li, Li Bo 收藏  |  浏览/下载：20/0  |  提交时间：2020/03/04 Kinematic support structure  Bipod  Sensitivity analysis  Parameter optimization  Finite elementanalysis.   Surface micromachined MEMS deformable mirror based on hexagonal parallel-plate electrostatic actuator 会议论文 Dalian, PEOPLES R CHINADalian, PEOPLES R CHINA, OCT 26-29, 2017OCT 26-29, 2017 作者:  Ma, Wenying;  Ma, Changwei;  Wang, Weimin 收藏  |  浏览/下载：47/0  |  提交时间：2019/08/23 Adaptive optics  Deformation  Delta modulation  Electromechanical devices  Laser pulses  MEMS  Mirrors  Structural design  Surface micromachining   Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China Yan Y.; Gu S.; An Y.; Jin G. 收藏  |  浏览/下载：10/0  |  提交时间：2013/03/25 The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper  an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed  the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization  and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile  the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted  and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well  its quality reduced about 20%  the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.   Texture of wetland in single-band and single-polarization ENVISAT ASAR image 会议论文 作者:  Jiang, Laixiang;  Zhang, Jie;  Ma, Yi 收藏  |  浏览/下载：2/0  |  提交时间：2018/12/12