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根据结构控制系统的特点,提出了结构控制系统模态能控度的概念,进而提出了对各解耦子空间状态向量的规范化处理,并给出了规范化因子的计算公式。在此基础上,得到模态恢复区域任一方向上边界点向量的解析表达式。由此求出的模态恢复区域、模态能控度,是其真值的最佳逼近值。因此,本文发展和改进了Viswanathan C N 等提出的能控度概念及其计算方法,为应用能控度准则判断结构控制系统作动器配置方案的优劣,提供了一个可靠的工具。本文给出一个颤振主动抑制系统不同控制面配置方案模态能控度计算、比较的算例。
According to the characteristics of the structure control system, the concept of modal controllability of the structure control system is put forward. Then the normalization of the state vector of each decoupling subspace is proposed and the calculation formula of the normalization factor is given. On this basis, an analytical expression of the boundary point vector in either direction of the modal recovery region is obtained. The modal recovery area thus obtained, modal energy control, is the best approximation of its true value. Therefore, this paper develops and improves the concept of controllability and its calculation method proposed by Viswanathan C N and provides a reliable tool for judging the advantages and disadvantages of actuator configuration schemes of structure control system using energy control criteria. In this paper, an example of calculation and comparison of modal energy control of different control plane configuration for active chatter suppression system is given.