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太陽電池陣布局對(duì)微小衛(wèi)星結(jié)構(gòu)特性影響

The effect of the layout of solar array on the characteristics of microsatellite structure

  • 摘要: 通過對(duì)比某型號(hào)微小衛(wèi)星兩種體裝式太陽電池陣布局及連接方式，從結(jié)構(gòu)響應(yīng)靈敏度的角度分析了結(jié)構(gòu)的阻尼對(duì)整星頂板太陽敏感器測(cè)點(diǎn)加速度響應(yīng)的影響程度。同時(shí)對(duì)兩種方案整星的正弦振動(dòng)試驗(yàn)結(jié)果對(duì)比分析，結(jié)果顯示：減少側(cè)板固定連接點(diǎn)且增加電池片數(shù)量的方案使其頂板部分測(cè)點(diǎn)響應(yīng)超出了設(shè)備試驗(yàn)條件，且比初始設(shè)計(jì)方案測(cè)點(diǎn)的響應(yīng)高出了27.1%，縱向和橫向一階頻率均有不同程度的降低。因此，從結(jié)構(gòu)特性的角度來看，初始設(shè)計(jì)方案更為合理。

     

    Abstract: By comparing two schemes of solar array structures, including the layout and the connections, the influence of the structure damping on the acceleration response for the solar sensor is analyzed based on the analysis of structure response sensitivity. Meanwhile, according to the vibration test results for the two schemes, it is shown that the roof response is increased by 27.1% with reduced number of fixed connections in the sideboard and with increased quantity of the solar cells, better than the test conditions. Also, the longitudinal and transverse fundamental frequencies are decreased to some extent as compared with the results of the initial scheme. Therefore, as viewed from the structure characteristics, the initial design scheme is more reasonable.

     

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