【摘要】 针对大型空间结构在轨组装过程中，各组装模块在组装冲击力扰动下的振动抑制问题，提出了基于模态频率分隔的主被动混合协同振动控制策略。首先，建立大型空间结构多模块在轨组装动力学模型，进而分析了大型空间结构在轨组装过程的低阶模态频率与特性。基于一阶固有模态频率分隔方法获取最优执行器分配策略，进而设计了分布式主被动振动控制器，并代入闭环振动系统进行仿真分析。结果表明，相较于传统振动控制策略，主被动混合协同振动控制策略能够使大型空间结构在轨组装过程中获得更优的振动抑制效果。更多还原

【Abstract】 To address the challenge of vibration suppression in individual assembly modules subjected to impact force disturbances during the on-orbit assembly process of large space structures, a hybrid active-passive collaborative vibration control strategy grounded in modal frequency separation is proposed. Initially, a dynamic model for the multi-module onorbit assembly of large space structures is formulated, followed by an analysis of the low-order modal frequencies and inherent characteristics of the assembly process. Utilizing the first-order natural modal frequency separation approach, an optimal actuator allocation strategy is derived, and subsequently, a distributed active-passive vibration controller is devised. This controller is then integrated into the closed-loop vibration system for simulation-based evaluation. The simulation outcomes demonstrate that the proposed hybrid active-passive collaborative vibration control strategy yields superior vibration mitigation performance during the on-orbit assembly of large space structures when compared to conventional vibration control methodologies.更多还原