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Electric sail static structural analysis with finite element approach

机译：电动帆静态结构分析与有限元方法

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The propulsive characteristics of an Electric Solar Wind Sail are usually evaluated using a simplified model in which all the sail tethers are coplanar and form a sort of rigid disk. However, the three-dimensional arrangement of the tethers is fundamental information in the study of the spacecraft performance, and must be accounted for in refined mission analyses. In this paper, a Finite Element approach is chosen to estimate the deflected shape of the tethers, thus allowing important information on the structural response of the sail to be obtained. A parametric code is developed to perform a static analysis of an Electric Solar Wind Sail, whose requirements are given in terms of payload mass and spacecraft characteristic acceleration. In particular, the tether structural response is investigated using three different beam models, which are compared in terms of accuracy and computational efficiency. The analysis is specialized to the noteworthy case of a Sun-facing sail that is placed at a distance of one astronomical unit from the Sun. The numerical results, which concern a set of possible sail configurations, are compared with those taken from analytical models.
机译：电动太阳能风帆的推进特性通常使用简化模型进行评估，其中所有帆马干都是共面，形成一种刚性盘。然而，采取的三维安排是在航天器性能研究中的基本信息，必须占精制任务分析。在本文中，选择有限元方法来估计有关的偏转形状，从而允许有关获得帆的结构响应的重要信息。开发参数码以对电太阳能风帆进行静态分析，其要求在有效载荷质量和航天器特征加速度方面给出。特别地，使用三种不同的光束模型来研究系绳结构响应，其在精度和计算效率方面进行比较。分析专门用于面对太阳帆的值得注意的情况，该帆在太阳下放置在一个天文单元的距离。将涉及一组可能的帆配置的数值结果与来自分析模型取得的那些。

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