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首页> 外文期刊>Journal of Spacecraft and Rockets >Multibody Dynamics Modeling of Segmented Booms of the Mars Express Spacecraft
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Multibody Dynamics Modeling of Segmented Booms of the Mars Express Spacecraft

机译：火星特快飞行器分段动臂的多体动力学建模

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We provide an independent modeling and dynamic analysis of the antenna segmented booms deployed on the Mars Express Spacecraft. The Mars Express Spacecraft, built by the ESA, was launched in June 2003 and arrived at Mars in December 2003 to begin a four-year study of the planet's atmosphere, surface, and subsurface. The Mars Advanced Radar for Subsurface and Ionospheric Mapping is a key instrument in the search for water on Mars. Our objective was to determine the antenna's dynamic interaction with the spacecraft bus. Numerical simulations of a model of the spacecraft in the perigee phase of its elliptical Mars orbit were performed, with all booms fully deployed and reaction wheels used to both disturb and control the spacecraft attitude. The simulation results verify the antenna system modeling fidelity and provide data on worst-case dynamic interactions between the flexible booms and the spacecraft bus that demonstrates the dynamic compatibility with the spacecraft.
机译：我们对部署在火星快车上的天线分段吊杆进行独立建模和动态分析。由欧空局建造的“火星快车”于2003年6月发射升空，并于2003年12月抵达火星，开始对行星的大气，地表和地下进行为期四年的研究。用于地下和电离层测绘的火星高级雷达是在火星上寻找水的关键工具。我们的目标是确定天线与航天器总线的动态相互作用。在椭圆机火星轨道近地点的航天器模型进行了数值模拟，所有动臂均已完全展开，反作用轮用于干扰和控制航天器姿态。仿真结果验证了天线系统建模的保真度，并提供了有关柔性吊杆与航天器总线之间最坏情况下动态相互作用的数据，从而证明了与航天器的动态兼容性。

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