大型空间光学载荷隔振与指向一体化平台仿真研究  

Simulation study on the integrated platform for vibration isolation and pointing of large-scale space optical payloads

作　　者：郭怡琳 冯勃[1] 周建 徐明龙[1] GUO Yilin;FENG Bo;ZHOU Jian;XU Minglong(School of Astronautics,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学航天航空学院,西安710049

出　　处：《航天器环境工程》2025年第2期191-200,共10页Spacecraft Environment Engineering

摘　　要：为减轻航天器微振动对大型空间光学载荷指向精度及成像质量的影响,并满足轻量化需求,文章采用音圈电机设计了一种具备俯仰和偏航调节功能的四支腿隔振与指向一体化平台。首先,建立了该平台的简化动力学模型,并基于PID控制策略推导了动力学控制方程,分析了质心偏离及控制参数对控制效果的影响。随后,设计了带负载的隔振与指向一体化平台,利用ADAMS刚柔耦合和MATLAB/Simulink控制联合仿真技术,构建了主动控制仿真模型。仿真结果表明,该平台共振峰处响应能够实现41 dB的衰减效果,并在低于共振峰的频段内也有很好的抑制能力,且圆形跟踪指向误差仅为2.19%,证实所设计的隔振与指向一体化平台具有良好的隔振和指向能力,对实际物理样机的制造具有理论指导意义。To alleviate the impact of micro-vibrations on the pointing accuracy and imaging quality of largescale space optical payloads,a lightweight,four-legged integrated platform for vibration isolation and pointing was designed.This platform,equipped with pitch and yaw adjustment functions,utilized voice coil motors to achieve both vibration isolation and precise pointing.Firstly,a simplified dynamic model of the platform was established.Dynamic control equations were then derived based on the PID control strategy,and the effects of centroid shift and control parameters on control performance were analyzed.Subsequently,a loaded integrated vibration isolation and pointing platform was designed.An active control simulation model was constructed using ADAMS rigid-flexible coupling and MATLAB/Simulink control joint simulation technology.Simulation results indicated that the platform could achieve a vibration attenuation effect of 41 dB at the resonance peak,with good suppression capabilities at frequencies below the resonance peak.Additionally,the circular tracking pointing error was only 2.19%.The platform confirmed its good vibration isolation and pointing capabilities.This research has theoretical guiding significance for the manufacturing of actual physical prototypes.

关 键 词：隔振与指向一体化 微振动 音圈电机 空间光学载荷 ADAMS刚柔耦合 

分 类 号：O328[理学—一般力学与力学基础] TB115.7[理学—力学]