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| 引用本文： | 陈润静,彭碧波,范城城,高凡.????????????????????????????????????о?[J].大地测量与地球动力学,2012,32(6):94-98. |
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| 作者姓名： | 陈润静 彭碧波 范城城 高凡 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所,武汉430077;大地测量与地球动力学国家重点实验室,武汉430077;中国科学院研究生院,北京100049
2. 中国科学院测量与地球物理研究所,武汉430077;大地测量与地球动力学国家重点实验室,武汉430077 |
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| 基金项目： | 国家自然科学基金重点项目(41131067);国家自然科学基金(40774012) |
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| 摘 要： | ??????????????????????????????????????????????????????????????????????????????????????С????????????????????????????????????????????????????????????????,??????????????????????????????????????????????壬??????????????????????????????????Ч???б???????ж?????????????????????????????????????δ?????????????????ó??????????????????????GRACE?????????????????????????????????????Ч??????????????????
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| 关 键 词： | ??????? ???????? ????滮?? ????ж????? ?????????? |
RESEARCH ON AREA CALCULATION OF NON-CONSERVATIVE FORCE ACTING ON SATELLITE SURFACE WITH CONSIDERATION OF SELF-SHIELDING EFFECT |
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| Chen Runjing,Peng Bibo,Fan Chengcheng,and Gao Fan.RESEARCH ON AREA CALCULATION OF NON-CONSERVATIVE FORCE ACTING ON SATELLITE SURFACE WITH CONSIDERATION OF SELF-SHIELDING EFFECT[J].Journal of Geodesy and Geodynamics,2012,32(6):94-98. |
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| Authors: | Chen Runjing Peng Bibo Fan Chengcheng and Gao Fan |
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| Institution: | 1,2,3) 1)Institute of Geodesy and Geophysics,Chinese Academy of Science,Wuhan 4300772)State Key Laboratory of Geodesy and Earth’s Dynamics,Wuhan 4300773)Graduate University of Chinese Academy of Sciences,Beijing 100049 |
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| Abstract: | All types of non conservative forces acting space missions are closely related with their configrations. Due to the impact of the self shielding effect, surface area which is suffered from external forces may be smaller than the actual surface area.This paper puts forward a reliable and effective algorithm. This method models the complex spacecraft configurations as a combination of several basic geometric shapes which are then divided into several differential surface areas. Each element is checked individually by corresponding condition on its shielding status, and the overall areas are determined by summing the exposed elements. It is indicated that the algorithm is effective in computation of the precise stress areas when Implemented in the calculation of solar radiation pressure force acting on GRACE mission, while traditional method manifests its limit in precision due to the neglect of self shielding effect. |
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| Keywords: | self shielding satellite configuration decomposition differential area division conditions of judging exposure status accumulation of stressed areas |
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