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Vibration Characteristics and Thermal Structural Dynamic Responses of a Flexible Rolled-up Solar Array

机译:柔性卷起太阳能电池阵列的振动特性和热结构动力响应

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摘要

Analytical studies of the natural vibration characteristics and dynamic response for a simple model of an asymmetric flexible rolled-up solar array are presented. A natural vibration analysis of the solar array model including bending-torsion coupling due to geometric asymmetry provides natural frequencies and mode shapes. Unusual features of the lower mode frequencies and mode shapes are discussed. The dynamic response of the solar array induced by sudden radiation heating for a typical night-day orbital transition is formulated. Additionally, numerical calculations are conducted for the solar array of the Hubble Space Telescope (HST). Variations of the dynamic response with the axial preload forces of the solar array booms are examined, and the vibration response due to the radiation heating of the HST solar array is discussed.
机译:提出了一个不对称的柔性卷起太阳能阵列的简单模型的自然振动特性和动态响应的分析研究。包括由于几何不对称而引起的弯扭耦合在内的太阳能电池阵列模型的自然振动分析提供了自然频率和振型。讨论了较低模式频率和模式形状的异常特征。提出了由辐射辐射突然激发引起的典型的昼夜轨道过渡的太阳能电池阵列的动态响应。此外,对哈勃太空望远镜(HST)的太阳阵列进行了数值计算。研究了动态响应随太阳能电池阵列吊杆的轴向预紧力的变化,并讨论了由HST太阳能电池阵列的辐射加热引起的振动响应。

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