中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共16条，第1-10条

帮助

条数/页：排序方式：
	Efficient strategy for reliability-based optimization design of multidisciplinary coupled system with interval parameters 期刊论文 OAI收割 APPLIED MATHEMATICAL MODELLING, 2019, 卷号: 75, 页码: 349-370 作者: Luo Y; Wang RX(王睿星) \| 收藏 \| 浏览/下载：84/0 \| 提交时间：2019/11/25 Multidisciplinary design optimization Non-probabilistic reliability Uncertainty propagation analysis Gradient information Interval reliability displacement
	Programming Chemical Reaction Networks Using Intramolecular Conformational Motions of DNA 期刊论文 OAI收割 ACS NANO, 2018, 卷号: 12, 期号: 7, 页码: 7093-7099 作者: Lai, W; Ren, L; Tang, Q; Qu, XM; Li, J \| 收藏 \| 浏览/下载：64/0 \| 提交时间：2019/12/17 STRAND-DISPLACEMENT-REACTIONS NUCLEIC-ACID NANOSTRUCTURES RATIONAL DESIGN TOEHOLD HYBRIDIZATION KINETICS NANOTECHNOLOGY COMPUTATION CASCADES CIRCUIT
	Design of micro-optical system for laser displacement sensor sensing probe 期刊论文 OAI收割 Chinese Optics, 2018, 卷号: 11, 期号: 6, 页码: 1001-1010 作者: Zhang, Shuang; Zhu, Wan-Bin; Li, Jian; Lu, Xiu- E. \| 收藏 \| 浏览/下载：44/0 \| 提交时间：2019/09/17 Optical systems Displacement measurement Energy transfer Optical design Probes
	A back-propagation neural-network-based displacement back analysis for the identification of the geomechanical parameters of the Yonglang landslide in China 期刊论文 OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2017, 卷号: 14, 期号: 9, 页码: 1739-1750 作者: Yu, Fang-wei; Peng, Xiong-zhi \| 收藏 \| 浏览/下载：75/0 \| 提交时间：2017/10/09 Back-propagation Neural Network Displacement Back Analysis Geomechanical Parameters Landslide Numerical Analysis Uniform Design Xigeda Formation
	Lightweight design of large scale theodolite's turntable based on topology optimization of continuum structure (EI CONFERENCE) 会议论文 OAI收割 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China 作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y. 收藏 \| 浏览/下载：48/0 \| 提交时间：2013/03/25 In order to solve the problem that the weight of large scale theodolite's casting or steel plate welded structure is too heavy lightweight design of large scale turntable based on topology optimization of continuum structure is investigated. Topology optimization could have better optimization efficiency because it can provide the optimized distribution of material and gain optimized structure in conceptual design phase of the structural design. In order to obtain lightweight and high stiffness structure a truss turntable based on topology optimization of continuum structure is presented and the validity of this lightweight structure is examined by finite element analysis. Comparing to the traditional welding steel turntable the lightweight turntable without changing the static displacement can lose 386.48 kg(lightweight ratio is 26.7%) and its first-order natural frequency raises from 167.02Hz to 173.71Hz. Meanwhile in other aspects this turntable also has better performance than traditional structure. 2012 IEEE.
	Assessment of the design displacement values at seismic fault crossings and of their excess probability 期刊论文 OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2011, 卷号: 8, 期号: 2, 页码: 228–233 Strom, Alexander; Ivaschenko, Alexey; Kozhurin, Andrey 收藏 \| 浏览/下载：51/0 \| 提交时间：2013/08/12 Active Fault Surface Rupture Design Displacement Pipeline Sakhalin Island
	Space optical remote sensor of the CAE thermal control index calculation method (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: Li L. 收藏 \| 浏览/下载：67/0 \| 提交时间：2013/03/25 The thermal control indicators CAE methods of Space optical remote sensor are analyzed in the presented work. We sat up a thermal optical analysis model for space optical remote sensor. By assuming fully covered by in-orbit temperature load and using the finite element method for thermal deformation analysis we obtained the optical remote sensor surface deformation and displacement under various thermal loading. Using ZERNIKE polynomial wave was fitted to obtain ZERNIKE polynomial coefficients which were incorporated into the optical system design. Using CODE V optical calculation software heat-ray machines under elastic deformation of the system point spread function transfer function (MTF) wave front differential (WFE) etc. were calculated. Image quality changes of remote sensors are discussed in variety assumed cases such as temperature loads of quality change. By repeated iteration critical value of temperature fields meeting the design requirements are obtained for the optical system. Optical indicators were converged to the temperature field indicator then reasonable indicators of thermal control for remote sensors were obtained. For the thermal control design this method provided a reliable basis for design. (2011) Trans Tech Publications Switzerland.
	Effect of gimbal point displacement on optical axis pointing precision in an image seeker (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：54/0 \| 提交时间：2013/03/25 A concentric glass spherical dome was usually chosen as the transparent window mounted in front of the optical lens in an image seeker. However optical ray had to change its direction when propagating through the dome due to refraction unless passing through the center of the dome which demanded gimbal point coincide with the center of the dome exactly. In fact gimbal point displacement could not be eliminating due to fabrication assembly and vibration therefore the optical axis pointing error generated. In this paper the effect of gimbal point displacement on optical axis pointing precision in an image seeker was analyzed and the theoretical expression of the optical axis pointing error was derived based on geometric optics and the error dynamics was explored by numerical. Take a visible light image seeker as a case the thickness of concentric glass spherical dome was 8mm and the inner radius was 72mm and the optical axis pointing errors varying dynamically with the look angle and the gimbal point displacement were shown in graph. When the gimbal displacement was 0.11mm the maximum optical axis pointing error was 0.054mrad that is equal to the instantaneous field of view (IFOV) corresponding to the camera system whose focal length was 120mm and pixel size was 6.5m. Furthermore with the gimbal displacement increasing the optical axis pointing error increased linearly. The analyzed results provided a theoretical basis for the displacement range which had to be limited strictly in the gimbal design process. 2011 IEEE.
	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：28/0 \| 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.