| Singularity radius gradient-based rapid singularity-escape steering law for SGCMGs |
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| 作者姓名： | Tao YI Yunhai GENG Baolin WU |
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| 作者单位： | Research Center of Satellite Technology,Harbin Institute of Technology |
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| 基金项目： | funded under the National Natural Science Foundation of China (No. 61873312)； |
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| 摘 要： | In order to visualize singularity of SGCMGs in gimbal angle space, a novel continuous bounded singularity parameter--Singularity Radius, whose sign can distinctly determine singularity type, is proposed. Then a rapid singularity-escape steering law is proposed basing on gradient of Singularity Radius and residual base vector to drive the SGCMG system to neighboring singular boundary, and quickly escape elliptic singularities. Finally, simulation results on Pyramid-type and skew-type configuratio...
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| 收稿时间： | 14 August 2019 |
Singularity radius gradient-based rapid singularity-escape steering law for SGCMGs |
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| Tao YI,Yunhai GENG,Baolin WU.Singularity radius gradient-based rapid singularity-escape steering law for SGCMGs[J].Chinese Journal of Aeronautics,2020,33(10):2728-2742. |
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| Institution: | Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150080, China |
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| Abstract: | In order to visualize singularity of SGCMGs in gimbal angle space, a novel continuous bounded singularity parameter--Singularity Radius, whose sign can distinctly determine singularity type, is proposed. Then a rapid singularity-escape steering law is proposed basing on gradient of Singularity Radius and residual base vector to drive the SGCMG system to neighboring singular boundary, and quickly escape elliptic singularities. Finally, simulation results on Pyramid-type and skew-type configuration demonstrate the effectiveness and rapidness of the proposed steering law. |
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| Keywords: | Gaussian curvature Rapid singularity escape Single gimbal control moment gyroscope Singularity-escape steering law Singularity parameter Singularity type |
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