| Optimization Design |
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| Vibration analysis of a data transmission antenna on high orbit satellite |
| SONG Jian-hu |
| The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081, China |
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Abstract In order to ensure the safety of antenna system at launch moment and orbit stage, the vibration property of a data transmission antenna developed to work on lunar orbit satellite was analysed. Through the finite element modeling and simulation method，the vibration performance of the antenna on high orbit satellite at launch moment and orbit stage was analysed and calculated， and the system antenna structure was optimized according to the simulation results. The vibration test for antenna system was applied in actual vibration environment, and the results indicated that the antenna system structure was reliable. The electrical property was tested again after vibration test, and the result indicated that the antenna electrical property was stable. The result of vibration test confirmed the reliability of the antenna and the credibility of the finite element analysis. This antenna has been launched and worked on orbit with stable performance indexes and good work conditions. This study can prefer some reference to increase the vibration safety for the related satellite antenna.
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Received: 26 September 2018
Published: 28 June 2019
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某高轨星载数传天线的振动分析
为了确保天线系统在发射阶段和入轨工作阶段的安全，对研制的某月球轨道小型星载数传天线进行了振动分析。通过有限元建模仿真方法对该高轨星载天线在发射阶段和入轨工作阶段的振动性能进行了分析和计算，并以此为根据对天线系统结构进行优化设计。进而，通过振动试验对天线系统进行了真实振动环境条件下的测试，结果表明天线系统结构安全。振动试验后对天线电气性能进行了复测，测试结果表明其电气性能稳定，由此验证了天线系统的可靠性和有限元分析的可信性。目前，该数传天线已随星发射并入轨运行，其各项性能指标稳定，工作状态良好。研究结果对提高相关星载天线的振动安全性具有一定的参考作用。
关键词：
数传天线,
月球轨道,
有限元分析,
振动试验
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