航天结构空间组装动力学与控制研究进展

On-orbit assembly is a crucial means to construct large and ultra-large space structures such as space stations, large satellite antennas, large-aperture space telescopes, and space solar power stations. However, complicated dynamics and control problems, such as the configuration increasement, parameter variations, orbit-attitude-structure coupled effects, and contact problems, will be encountered during the process of on-orbit assembly and bring challenges to accomplishing the assembly task accurately, efficiently, and safely. The development status of dynamic modelling methods of large space structures, special dynamic phenomena of ultra-large space structures, and dynamic modelling studies of space structures during on-orbit assembly process were reviewed. Then, the control methods of the on-orbit operation stage, the assembly sequence planning methods, and the control methods for the on-orbit assembly process were introduced. In addition, the key techniques of gravity unloading, scale model design and testing, nonlinearity and uncertainty quantification techniques with ground tests in the assembly process were summarized. Finally, to address the increasing configuration and discontinuously varying parameters of the ultra-large space structures during on-orbit assembly process, a few suggestions were put forward to deal with the dynamic and control problems.