中国科学院机构知识库网格系统: 检索

Design of a novel installation device for a subsea production system 期刊论文 OAI收割
Applied Ocean Research, 2016, 卷号: 59, 页码: 24-37
作者: Cao, Yuguang; Hu, Xueyang; Zhang, Shihua; Xu, Songsen; Lee, Junglin

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Subsea production system Installation method Floating installation device Theoretical computation Numerical simulation

Multi-Beam Sonar Application on Autonomous Underwater Robot 期刊论文 OAI收割
MARINE GEODESY, 2015, 卷号: 38, 期号: 3, 页码: 281-288
作者: Ji DX(冀大雄); Liu J(刘健)

收藏 | 浏览/下载：13/0 | 提交时间：2015/10/23

Detection technique autonomous underwater robot installation acoustic synchronization system error amending

Development of RFQ power source for ADS injector I 期刊论文 OAI收割
HIGH POWER LASER AND PARTICLE BEAMS, 2015, 卷号: 27, 期号: 8, 页码: 85106
作者: Zhou ZS(周祖圣); He DY(何大勇); Liu R(刘熔); Chi YL(池云龙); Zhou

收藏 | 浏览/下载：22/0 | 提交时间：2016/04/18

Accelerator driven subcritical systems Continuous wave klystron Continuous-wave power Equipment installation Injector Power sources Technical specifications Waveguide transmission system

Precision analysis of simulation systems with hardware-in-loop caused by performance of three-Axis virtual flight motion simulator (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Manufacturing Science and Technology, ICMST 2011, September 16, 2011 - September 18, 2011, Singapore, Singapore
Wang T.; Zhu M.-C.; Yin S.-L.; Jia H.-G.

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Simulation systems with hardware-in-loop are composed by three-Axis virtual flight motion simulator simulation computer load torque simulator and visual simulation systems. Three-Axis Virtual Flight Motion Simulator are used to simulate the attitude of missile in simulation system with hardware-in-loop so its performance influenced the result of simulation directly. This paper mainly analyzed the factors which influenced the performance of a three-Axis virtual flight motion simulator which we are used now in the lab then analyzed the entire simulation system's error caused by these factors through numerical simulation method. By analysis we can see that bandwidth is the main factor influenced the precision of simulation systems with hardware-in-loop mechanical device installation error and measurement error may also cause some errors of the systems at the same time.

Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE) 会议论文 OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：35/0 | 提交时间：2013/03/25

It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise for a seeker electro-driven with a concentric glass dome the large errors will decrease the picking pointing and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure manufacture installation and vibration coming from working environment. In this paper the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case the diameter is 120mm and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker and at the same time the errors resulting from installation were considered too. Based on calculating the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper and finally the maximum gimbal displacement error reduced to 0.1mm which is acceptable corresponding to the picking pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.

Optimal design of strap-down inertial navigation support under random loads (EI CONFERENCE) 会议论文 OAI收割
2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China
作者: Li M.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

In order to realize miniaturization and light weight of the strap-down inertial navigation system and then to make sure that it works well under random loads optimal design is applied to the strap-down inertial navigation support with the methods of topology optimization and size optimization. Firstly based on the installation requirement of devices and connection requirement of the support and the carrier the initial structure of the support is designed. Topology optimization with FEA software ANSYS is adopted on the initial structure to get the basic one. Then 5 critical sizes are chosen as design variables and the support structure is optimized by means of size optimization to reach light weight with satisfying the requirement of dynamic stiffness. Finally random vibration analysis is applied to the initial structure. In the mean time random vibration test is carried out to qualify the analysis method. After the qualification a random vibration analysis is applied to the optimized support structure to get the rms of displacement response and acceleration response of the support to validate whether the optimized structure is appropriate. The results indicate that the dynamic stiffness of the optimized support structure satisfies the design requirements and its weight is lighter 49.38% than that of the initial one. This research can be a reference to the structure design of supports under random loads and the result has been applied to the development and manufacture of a prototype aerocraft. 2010 IEEE.

Experimental analysis of accelerometer installation error (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Yanqiu H.; Juan C.; Peng Y. L.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

When accelerometer is installed errors would be produced which will greatly degrade the measurement accuracy so to the tracking precision while being applied in the compound control. We make the experimental analysis for the accelerometer installation in which the accelerometer is installed parallel to the azimuth and 30 degree away the azimuth. The data are dealt with and compared with the theoretical results. Out work can offer useful information for the calibration of accelerometer in the optoelectronic tracking system. 2010 IEEE.

Influence of the TDI CCD camera takes pictures when high resolution satellite lateral swaying (EI CONFERENCE) 会议论文 OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
作者: Zhang L.; Zhang L.; Sun Z.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

When the satellite was swinging and taking lateral imaging the TDI CCD pixel photovoltaic charge purses transferred velocity not matched with the image motion velocity. According to the requirement of high-resolution satellite which was taking lateral imaging at a low orbit the factors that bring about the unmatched phenomenon were analysed inclusive of the Earth's rotation the Earth curvature satellite attitude change measurement error and the installation error etc. Image motion errors caused by various factors were analysed and solved and the different characters of image motion errors were synthesized. Finally the total errors on the impact of imaging system MTF was analyzed. 2009 IEEE.

Installation and cosmic ray test of the high voltage system of the BESIII drift chamber 期刊论文 OAI收割
CHINESE PHYSICS C, 2008, 卷号: 32, 期号: 12, 页码: 992-994
作者: Xu MH(徐美杭); Chen C(陈昌); Chen YB(陈元柏); Wu Z(吴智); Qin ZH(秦中华)

收藏 | 浏览/下载：18/0 | 提交时间：2016/06/29

BESIII drift chamber high voltage system cosmic ray test installation

Installation and cosmic ray test of the high voltage system of the BESIIIdrift chamber 期刊论文 OAI收割
中国物理C, 2008, 期号: 12, 页码: 992-994
作者: Xu MH(徐美杭); Chen C(陈昌); Chen YB(陈元柏); Wu Z(吴智); Qin ZH(秦中华)

收藏 | 浏览/下载：13/0 | 提交时间：2015/12/21

BESⅢ drift chamber high voltage system cosmic ray test installation