一种新的半主动控制策略--频率控制

在半主动控制策略—主动变刚度(AVS)的基础之上,提出了一种新的半主动控制策略。利用短时最大熵谱谱阵分析方法能准确给出变频信号在较短时间序列中的时频信息,进而提出主动变刚度体系的频率控制算法。仿真分析表明,该方法简便可行,鲁棒性好,在线计算量很小,能有效的控制受控结构相对位移反应,因此工程实际应用的前景非常光明。

A New Semi-active Control Strategy-Frequency Control

In this paper, a new semi-active control method is presented, which is founded on the basis of active variable stiffness (AVS), and its principal content is using frequency control (FC). As a new semi-active algorithm, short time maximum entropy analysis is firstly proposed, in which exact time and frequency signal at every control short time sequence is given. Using the FC method, a case example of a 3-story and a 12-story structure indicate that the present semi-active method is effective, The effectiveness and robustness of the algorithm are thus indicated through analysis,and the displacement of the structure is reduced effectively. So it is possible to be a promising means in engineering practice.