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长春光学精密机械与物... [1]
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会议论文 [1]
发表日期
2011 [1]
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Random vibration analysis on the support of strapdown inertial navigation system (EI CONFERENCE)
会议论文
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Hao X.
;
Li M.
;
Jia H.
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提交时间:2013/03/25
Vibration of the support is an important factor to the accuracy of strapdown inertial navigation. To get vibration characteristics of the support
FEM model of the support was created with Ansys
and then response characteristics were analyzed on the support under the separated random loads during carrier flight
including the phases of subsonic and subsonic. To validate the analysis method
wide band random vibration test was done on the points of the support
which are used for mounting inertial instruments. The comparison of the analysis and the test data shows that the relative error of analysis result is not more than 13%. According to the two results the support structure was improved. Finally random vibration analysis was carried out on the improved one. The result shows that the acceleration response was largely reduced than before. This research can be a reference of performance improvement of the strapdown inertial support and navigation system precision. 2011 IEEE.
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