在主动清除需求的牵引下，空间碎片旋转运动研究成为新的热点。项目目标为：给出较为系统和完整的空间碎片旋转运动规律，建立旋转运动信息的模式特征库。主要研究内容包括：涡电流和大气力矩模型刻画及旋转演化效应分析；旋转特征样本库的建立方法；观测时序信息与旋转相关性分析及理论模型的迭代校验。本项目将通过理论、观测和实验相结合的手段开展，理论研究中将考虑涡电流中的感生电动势、大气力矩以及非刚体部件的影响效应；将通过观测和实验，建立不同类型、不同演化时间段的大样本旋转模式库；通过迭代过程，完善理论模型和解释观测特征。本项目建立的模式特征库，可以支撑空间碎片旋转运动理论模型的改进及主动清除目标的筛选；理论研究结果可丰富和完善空间碎片旋转演化规律研究的内容，并有望解释旋转加速及频率周期性跳变等特殊观测现象。本项研究将带动空间碎片研究从质点动力学向刚体动力学的延伸，拓展应用天体力学的研究内涵。

The research on the rotational motion of the space debris has been a new hot topic with the traction of the demand of Active Debris Removal. The project aims to obtain the more systematic and complete law of the rotational motion of the space debris and establish the pattern characteristic database of the rotational motion information. The main researches include: the modeling of the eddy current torque and the air torque, and the effects of the torques on the evolution of the rotation; the establishing method of the rotational pattern characteristic database; the correlation analysis between the observational time-series information and the rotation, and the iterative verification of the theoretical models. The research in the project will be based on the combination of the theoretical method, the observation and the experiment. The effects of the induced electromotive force in the eddy current, the air torque and the non-rigid parts are taking into account in the theoretical method. The rotational pattern characteristic database of large samples with various types and evolution periods is built based on the observation and the experiment, which can be helpful to the modification of the theoretical models about the rotational motion of the space debris, and to the selection of the Active Debris Removal targets. And the theoretical models are modified by the iterative process, which will enrich the results of the evolution of the rotational motion of the space debris, and can be used to explain the special phenomena in the observation such as the rotary acceleration, periodic hop of the frequency etc. The project will promote the development of the space debris study from the particle dynamics to the rigid body dynamics, and expand the research field of the applied celestial mechanics.