基于二次型性能泛函的主动控制致动器优化配置

致动器过多不仅增加控制能量和成本,而且会增加控制难度及降低控制效率。已有的优化配置研究中,已对一定数目致动器的位置配置进行了探讨,而对致动器的最优数目研究较少。本文首先根据致动器对结构系统的状态影响矩阵中控制贡献大小,提出控制系统中致动器最优数目的优化方法;然后根据致动器的灵敏度,提出改进的最优致动器布置计算方法及算法流程,提高计算效率,并通过实例进行了验证,说明本文提出改进的致动器优化配置算法流程的适应性和有效性,更能适应于大型土木工程结构主动控制中的致动器优化配置。

Optimal Configuration of Actuators for Active Control Based on Quadratic Functional

Too many actuators not only increase the cost or difficult of control, and increase the energy of control. And may decrease control efficiency due to the influence of noise. Existing actuator optimization configuration, the actuator was configured to optimize the location in a given number of actuators mostly. But it is still a thorny issue how to determine the optimal number of actuators. Firstly, according to the contribution to the system state influence matrix, proposed the optimization of the number of actuators for control system. Then proposed an improved the optimal calculate method and algorithm flow for actuator arranging based on the sensitivity of the actuator, which improved computational efficiency and verified by examples. This paper presented an improved optimization algorithm processes for actuator which could adapt to large-scale civil engineering structures.