期刊
ADVANCES IN SPACE RESEARCH
卷 67, 期 9, 页码 2613-2627出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.asr.2020.05.008
关键词
Solar sailing; Membrane deformation; Triangular mesh generation; Point cloud method; Point cloud simplification
类别
资金
- National Natural Science Foundation of China, China [11972075]
- Open Research Fund of Key Laboratory of Space Utilization, Chinese Academy of Sciences, China [LSU-KFJJ-2018-01, XDA 15020300]
- Strategic Priority Research Program on Space Science, Chinese Academy of Sciences, China [LSU-KFJJ-2018-01, XDA 15020300]
- SRP, United Kingdom
This paper uses a new modelling technique based on point cloud and triangular mesh generation to describe the deformation of solar sail. It calculates the changes in solar radiation pressure force and moment caused by deformation, and analyzes the influence of deformation on orbits. Additionally, point cloud simplification is utilized to improve computational efficiency by reducing and renewing points in the model.
The deformation of the solar-sail membrane is an important factor for causing inaccuracies in the solar-sail missions. This paper describes the solar sail under deformation by using a new modelling technique based on point cloud and triangular mesh generation. Two types of deformation, stemming from wrinkling and billowing, are modelled. The changes in the solar radiation pressure force and the moment caused by deformation are calculated and compared to the ideal non-deformed case. The heliocentric spiral trajectory and the orbital angular momentum reversal trajectory are taken as examples to quantify the influence of the deformation from an orbit point of view. Additionally, point cloud simplification, based on the normal vector and bounding box, is utilized to simplify the original deformed-sail model. It involves a reasonable reduction and renewal of the points in the model considering the variation of surface curvature. The simplification and its modelling accuracy are numerically investigated as well as computational efficiency. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
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