Structure Improvement and Mechanical Analysis on Data Transmission Antenna

Wen Jie Fan; Ning Li

doi:10.4028/www.scientific.net/AMM.184-185.497

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 184-185Structure Improvement and Mechanical Analysis on...

Structure Improvement and Mechanical Analysis on Data Transmission Antenna

Abstract:

Data transmission antenna plays an important role in transmitting data from satellite. The structure of antenna consists of four parts, including a feed tube, a reflecting surface, a brace and a adapter. Due to the unreasonable structure design and coarse mechanical analysis, the initial data transmission antenna was broken at the corner of a spiral in the process of random vibration test. In this paper an improvable method is brought up and mechanical analysis is carried out, the result shows that the first frequency raises from 324Hz to 328Hz and the stress root mean square decreases from 62MPa to 37MPa in X-direction random vibration. Of course, the improved antenna passes the random test.

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Periodical:

Applied Mechanics and Materials (Volumes 184-185)

Pages:

497-500

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.184-185.497

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Online since:

June 2012

Authors:

Wen Jie Fan, Ning Li

Keywords:

Antenna, Finite Element Method (FEM), Mechanical Analysis, Random Vibration

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References

[1] Jacob Job, Wiljker: Spacecraft Structures (Springer-Verlag, Berling Heidelberg 2008).

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[2] Dave S. Steingberg: Vibration Analysis for Electronic Equipment(John Wiley & Sons, New York 2000).

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[3] Wenjie Fan. Fracture Cause Analysis and Improvement on waveguide tube of Satellite Calibration Antenna in Random Vibration. Advanced Materials Research, vols: 139-141, 2431~2435, Trans Tech Publications , Switzerland, (2010).

DOI: 10.4028/www.scientific.net/amr.139-141.2431

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