全电推进GEO卫星一箭双星结构模态频率分析

王韵臣; 陈昌亚

doi:10.3788/OPE.20172514.0125

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全电推进GEO卫星一箭双星结构模态频率分析

更新时间：2020-08-13

- 全电推进GEO卫星一箭双星结构模态频率分析
- Analysis for structural modal frequency of one rocket with two satellites of GEO satellite for full-electric thruster
- 光学精密工程 2017年25卷第12z期页码：125-133
- 作者机构：
  
  上海卫星工程研究所上海,200240
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目（No.61401279）()
- DOI：10.3788/OPE.20172514.0125
  中图分类号： TP391.9
- 收稿日期：2017-08-29，
  
  修回日期：2017-09-20，
  
  纸质出版日期：2017-12-31
- 稿件说明：
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王韵臣, 陈昌亚,. 全电推进GEO卫星一箭双星结构模态频率分析[J]. 光学精密工程, 2017,25(12z): 125-133

WANG Yun-chen, CHEN Chang-ya,. Analysis for structural modal frequency of one rocket with two satellites of GEO satellite for full-electric thruster[J]. Editorial Office of Optics and Precision Engineering, 2017,25(12z): 125-133
王韵臣, 陈昌亚,. 全电推进GEO卫星一箭双星结构模态频率分析[J]. 光学精密工程, 2017,25(12z): 125-133 DOI： 10.3788/OPE.20172514.0125.

WANG Yun-chen, CHEN Chang-ya,. Analysis for structural modal frequency of one rocket with two satellites of GEO satellite for full-electric thruster[J]. Editorial Office of Optics and Precision Engineering, 2017,25(12z): 125-133 DOI： 10.3788/OPE.20172514.0125.

摘要

为了节省卫星燃料，增加卫星载重比，延长卫星使用寿命，将化学推进平台改为全电推进平台，并且采用"一箭双星"发射。首先设计出使用电推进时的轨道转移方案，根据卫星发射重量使用双台300 mN的推力器并联工作，从GTO至GEO的转移时间约为6个月，消耗燃料仅需约650 kg。针对目前存在的3种一箭双星发射方式，火箭舱内支撑、自串联和并联，分别设计卫星构型，对其进行模态分析，与之前的化学推进方案相比较。可以得出3种满足火箭发射要求的构型中火箭舱内支撑构型最佳，单星横向基频为20.781 Hz，结构质量比为9.8%，选择该构型进行一箭双星发射。综合分析可知，采用全电推进火箭舱内支撑一箭双星发射方式，可以减少燃料，使结构轻量化与整星轻量化，并能够节约发射成本，具有良好的先进性和经济性。

Abstract

Changing chemical thruster platform to full-electric thruster platform can save satellite fuel

increase bearing ratio of satellite and prolong service life of satellite

and "one rocket with two satellites" launch can be adopted. Firstly

orbit transfer scheme at the time of using electric thruster was designed

with satellite launch weight of 2 700 kg

and parallel operation for two 300 mN thrusters was used. Transfer time from GTO to GEO was about 6 months

and consumption fuel of 650 kg was just needed. Aimed at current existing three kinds of launch modes for one rocket with two satellites

support

self-series and parallel inside rocket tank were provided with modal analysis by designing satellite configuration respectively to compare with previous chemical thruster scheme. It can be obtained that three kinds of configurations for one rocket with two satellites all meet requirements for rocket launch

of which support configuration inside rocket tank is the best with horizontal frequency of 20.781 Hz and structural weight ratio of 9.8% per satellite

and this configuration shall be used to conduct launch of one rocket with two satellites. Comprehensive analysis shows that adopting launch mode for one rocket with two satellites for support inside rocket tank of full-electric thruster is relatively good

which can save more than one hundred million of lunch cost

and its has excellent advancement and economy.

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references

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