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长春光学精密机械与物... [3]
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会议论文 [3]
发表日期
2011 [3]
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发表日期:2011
专题:长春光学精密机械与物理研究所
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SGCMG design and time accumulation error analysis (EI CONFERENCE)
会议论文
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
Xu W.
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浏览/下载:15/0
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提交时间:2013/03/25
SGCMG receives much concern due to the performance of its excellent torque output on spacecraft control
it has been applied to large foreign spacecraft already
but late start and only limited to configurations and steering law study in China. Based on the needs of agility small satellites
this article explained the method of SGCMG principle prototype design and proposed the influence on SGCMG output torque precision generated by time accumulation error first time. This article provided a new idea for future SGCMG project development and had good reference value for SGCMG research. 2011 IEEE.
The flow field analysis of the automotive power streering congtrol unit's flow channel (EI CONFERENCE)
会议论文
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
Cheng K.
;
Yan L.
;
Li G.
;
Tang J.
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浏览/下载:14/0
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提交时间:2013/03/25
The automotive power steering units must be taken performance test after they are integrated assembly and then left the factory if it is qualified.Because its internal flow channel is very complicated and the residual hydraulic oil can not be eleminated clearly.So we can set up a 3D model flow channel based on CATIA and use FLUENT software to analysis the key flow channel
analysing it's pressure distribution and velocity vector diagram then get the real reasonable resluts
which can provide the basic for the ejector designing. (2011) Trans Tech Publications.
Non-linear compensation algorithm of LOS locating in aerial remote sensor (EI CONFERENCE)
会议论文
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Li J.
;
Xiu J.
;
Huang P.
;
Li Y.
;
Chen L.
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浏览/下载:22/0
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提交时间:2013/03/25
A non-linear light-of-sight(LOS) locating compensation algorithm for certain aerial remote sensor is presented in this paper. The LOS locating system is composed of two main components
which are an inertial reference frame to provide coarse LOS locating and a 2-axis Fast Steering Mirror to remove the frame's residual error. The azimuth and elevation of LOS are both affected by the FSM two-degree-of-freedom rotation
which should be dealt with to raise the accuracy of LOS location. This paper extrapolates LOS locating algorithm of FSM by coordinate transformation
and gives corresponding deviation analysis for different LOS poiting angles. It is found that the angle deviation grows rapidly with range of FSM's travel enlarging
so the deviation must be eliminated. Through the data analysis for deviation
a non-linear compensation algorithm is proved effective to reduce the error of LOS significantly. Taking LOS changing in [-3 deg
3 deg] as an example
two analytic expressions are given
and the LOS locating accuracy rises by 34 times compared with non-linear compensation unused
and the cross coupling of LOS loating is 0.08%. 2011 IEEE.
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