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Active-passive integrated vibration control for the control moment gyros and its application on satellites

机译：控制力矩陀螺的主动-被动集成振动控制及其在卫星上的应用

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The main topic of this paper is the design of active-passive integrated vibration control on truss enveloping control moment gyroscopes (CMGs) and analysis about its characteristics. Truss enveloping CMGs in this paper refers to pyramid configuration CMGs which are enveloped by multiple struts from active-passive integrated vibration control trusses. Struts of trusses maintain the working space of CMGs as well as isolate the vibration produced by them. Firstly, the disturbance characteristics of CMGs are analyzed taking static and dynamic imbalance into account, then, an active-passive integrated vibration isolation truss structure is developed based on its characteristics. This structure can restrain the CMGs vibration to the utmost extent and reduce its influence on the photographic quality of satellites optical payloads. Later on, the dynamic model of the active-passive vibration isolation struss structure is established. And the frequency domain analysis of this model shows that active-passive integrated vibration control method can obviously restrain the high-frequency vibration and improve the characteristics of low-frequency vibration as well. At last, the dynamic model for the whole satellite with this kind of CMGs is built. The time domain simulations of satellite attitude control are arranged as the verification of attitude control improvements resulted from the CMGs vibration control tactics showed in this paper.
机译：本文的主要主题是基于桁架包络控制力矩陀螺仪（CMG）的主动-被动集成振动控制的设计及其性能分析。本文中的桁架封装CMG是指金字塔形CMG，这些CMG被主动-被动集成振动控制桁架的多个支柱包围。桁架支柱可保持CMG的工作空间并隔离其产生的振动。首先，在考虑动静不平衡的基础上，分析了CMG的扰动特性，然后基于其特性开发了一种主动-被动集成隔振桁架结构。这种结构可以最大程度地抑制CMG的振动，并减少其对卫星光学有效载荷照相质量的影响。随后，建立了主动-被动隔振结构的动力学模型。并且该模型的频域分析表明，主动-被动集成振动控制方法可以明显抑制高频振动，同时也改善了低频振动的特性。最后，建立了带有这种CMG的整个卫星的动力学模型。本文对卫星姿态控制进行了时域仿真，以验证本文所展示的CMG振动控制策略对姿态控制的改进效果。

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