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Multipurpose optimization for grating shaft of double grating spectrometer
Xu, D.; D. Cao; G. Lin and X. Yu
2017
Source PublicationHongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Volume46Issue:3
AbstractGrating shaft of a double grating spectrometer is an important part which is used to fix and drive gratings, deformation and vibration of which both have effects on final measurement result. According to operating principle and working condition of the double grating spectrometer, centroid adjustment, light weight, avoid resonance and the decrease of the random vibration were chosen to be main goals in the optimization. First, three-dimension model of concave gratings, grating shaft and its fixture were built in UG. Then, they were imported into ANSYS Workbench, modal analysis and random vibration analysis were done. Finally, multipurpose optimization was done according to the result in last step. After the multipurpose optimization, centroid of the rotating parts was adjusted to the rotating axis. Its mass reduced from 0.60630 kg to 0.53943 kg. Its second natural frequency increased from 184.83 Hz to 187.77 Hz, and the maximal random vibration deformation on Z axis of concave gratings reduced from 33.394 m to 27.147 m. Centroid adjustment of structure could be realized directly by common finite element analysis software, the author achieved this goal when building three-dimensional models, and guaranteed that centroid of the rotating parts moved only on their rotating axis in optimization, so that centroid adjustment and light weight can be realized at the same time, which can be widely used in many other projects. 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
Indexed Byei
Language中文
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/59343
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Xu, D.,D. Cao,G. Lin and X. Yu. Multipurpose optimization for grating shaft of double grating spectrometer[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2017,46(3).
APA Xu, D.,D. Cao,&G. Lin and X. Yu.(2017).Multipurpose optimization for grating shaft of double grating spectrometer.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,46(3).
MLA Xu, D.,et al."Multipurpose optimization for grating shaft of double grating spectrometer".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 46.3(2017).
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