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以在轨航天器的仪器仓平台设备系统为研究对象 ,提出了一种含结构刚度具有滞迟非线性特性的隔振系统和最优主动控制系统的一体化实时最优控制方法 .通过一个最优化过程实时最小化二次型性能指标获得时变的反馈增益矩阵 ,在非线性条件下 ,通过时间离散控制系统运动方程获得一个差分方程的集合 ,使得对控制系统的评估更简单更直接 .最后针对具体结构系统给出了仿真结果 ,并与单一主动、被动控制进行比较 ,以验证该方法的有效性 .
Taking the equipment of platform system of on-orbit spacecraft as research object, an integrated real-time optimal control method of vibration isolation system and optimal active control system with delay stiffness nonlinearity is proposed. Optimization process Real-time minimization quadratic performance index Obtains a time-varying feedback gain matrix, obtains a set of difference equations through the time-discrete control system motion equations under non-linear conditions, making the evaluation of the control system simpler and more direct The simulation results are given for the specific structure system and compared with the single active and passive control to verify the effectiveness of the method.