【摘要】 为满足空间微重力环境下隔振系统对动态及稳态性能提升与振动抑制的需求，提出一种创新的保性能分层控制隔振策略。在控制层设计上，采用基于预设性能与预定义时间控制的误差转换函数，确保隔振系统位置与姿态误差严格限定于预定边界内，同时有效抑制微重力加速度引起的振动。针对执行器控制中的通信与分配难题，创新性地引入迟滞量化器及对偶神经网络二次规划器，以优化控制信号传输效率，提升执行器输出精度，并显著降低执行层能耗。实验结果表明，该控制策略显著增强了系统的快速响应能力与稳定性，在0.1～50 Hz的宽频范围内均展现出卓越的振动抑制效果，振动衰减斜率达约-23.53 dB/十倍频，为空间微重力环境下的隔振技术提供了新的解决方案。更多还原

【Abstract】 To address the demands of dynamic and steady-state performance and vibration suppression in a microgravity environment, a performance-guaranteed hierarchical control vibration isolation strategy is proposed. First, for the control layer of the vibration isolation system, an error transformation function based on prescribed performance and predefined time control is employed, ensuring that the position and attitude errors of the vibration isolation system remain within specified boundaries and effectively suppress microgravity acceleration vibrations. Secondly, for issues of actuator control communication and control allocation in the vibration isolation system, a hysteresis quantizer and a dual neural network quadratic optimizer are introduced. This strategy optimizes the efficiency of control signal transmission, improves the accuracy of actuator output signals, and reduces energy consumption at the execution level. Experimental results indicate that this control strategy significantly enhances the system’s fast response capability and stability, effectively suppressing vibrations in the 0. 1～50 Hz frequency range, with a decay rate of approximately-23. 53 dB per decade.更多还原