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长春光学精密机械与物... [2]
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会议论文 [2]
发表日期
2013 [2]
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发表日期:2013
专题:长春光学精密机械与物理研究所
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Structural design of primary mirror subassembly for space telescope (EI CONFERENCE)
会议论文
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
Xu H.
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浏览/下载:43/0
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提交时间:2013/03/25
In order to design a large aperture primary mirror with the diameter of 1150 mm
the parameters impacting on gravity deformation of the mirror were analyzed and discussed in detail
including material selection
diameter-thickness ratio
the number of the support points
location selection and lightweight structure
etc. A novel space mirror structure system was put forward
and its back was opened and supported by six points on back. The dynamic and static and thermal characteristics were analyzed based on the finite element method. Analysis results showed the surface figure accuracy reached to RMS 14.5nm under the action of gravity load along the optical axis direction and the first-order natural frequency was 214Hz which met to the designed indexes requirements. (2013) Trans Tech Publications
Switzerland.
Engineering analysis and research on connection plate of vehicle radar antenna pedestal (EI CONFERENCE)
会议论文
3rd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2012, December 11, 2012 - December 13, 2012, Hong kong
Chang F.
;
Li Y.
;
Yan D.
;
Sun H.
;
Wu Y.
;
Tian X.
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浏览/下载:22/0
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提交时间:2013/03/25
According to the usage of vehicle radar antenna pedestal connection plate
this article analyzes and compares the structure characteristic of welding and casting. We decide to adopt the casting structure and use cast aluminium ZL101A. Based on the connection plate of using conditions
we analyze the deformation and stress of connection plate by the finite element analysis software. The design is in line with the material allowable requirements and to meet the requirements of the system stiffness. (2013) Trans Tech Publications
Switzerland.
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