太陽電池陣隨機振動試驗高頻超差特性分析與優(yōu)化

The analysis and improvement of excess tolerance in the random vibration test for the solar array

摘要: 文章對小衛(wèi)星太陽電池陣在垂直向隨機振動試驗時嚴重高頻超差的原因進行了分析，結果表明是由于花盆與模擬墻連接特性較差引起的，且花盆不適用于隨機振動試驗。研制了輔助擴展臺面以替代現(xiàn)有的花盆，針對輔助擴展臺面開展了有限元分析和試驗驗證。有限元計算結果和試驗驗證結果均表明，使用輔助擴展臺面有效地減小了太陽電池陣隨機振動試驗高頻超差量。

Abstract: In the vertical random vibration test for the solar array of a small satellite, the excess tolerance in a high frequency is a serious issue. The analysis results show that the flowerpot fixture iS not suitable for the random vibration test and will lead to poor linking. Therefore, an auxiliary extending table is developed, which Can improve the linking. With respect to the auxiliary extending table, the fmite element analysis and the verification test were carried out. The comparison of analysis and test results show that the excess tolerance is greatly reduced.

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