【摘要】 基于模态滤波器技术和最优控制理论 ,在测量加速度的情况下 ,采用独立模态空间控制方法研究了空间柔性智能桁架结构的振动主动控制问题。在研制了智能桁架结构的基础上 ,基于计算机控制系统理论 ,采用加速度测量进行了柔性智能桁架结构的实时计算机振动主动控制实验研究。实验结果表明该控制方法是行之有效的更多还原

【Abstract】 Active vibration control of flexible space intelligent truss structures is investigated based on modal filters (MF) technique and optimal control theory. The modal acceleration response is extracted from acceleration measurements by MF. Then Leunberger observers are modified to obtain the modal displacement and modal velocity from modal acceleration. Modal control force is synthesized by the independent modal space control (IMSC) method. A space intelligent truss structure with low and closely spaced frequencies is developed and real\|time computer control experiments are accomplished. The experimental results demonstrate that the control strategy is effective and feasible.更多还原