Abstract:Due to the lack of specific criteria for the spaceborne deployable structure in prestressed folded state, and the difficulty of meeting mechanical environmental requirements in rocket active flight segment, a kind of criteria was put forward to determine the entire star "stable" folded state. The finite element analyses and related experiments were carried out for structural strength and stiffness of this "stable" folded state as a kind of reference for the following study. Based on this spaceborne prestressed developable structure, the tests were conducted to study the relationship be-tween cord pretension and structural natural frequency in folded locking state and the average locking operation time. Then the value of this pretension was determined. The intensity and modals of the entire structure in "stable" state were computed by ANSYS software. The rationality of the finite element analysis results was verified by comparing the shak-ing-table test with hammering method of fundamental frequency measurement.
曹长明1,关富玲1, 徐彦2,黄河1. 星载预应力可展开结构收拢状态的确定、分析与试验[J]. 振动与冲击, 2016, 35(22): 129-135.
CAO Chang-ming1,GUAN Fu-ling 1,XU Yan2,HUANG He1. Determination, analysis and test of spaceborne deployable structures in prestressed folded state. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(22): 129-135.
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