基于结构图的建筑结构振动控制系统建模与仿真

摘要

Block diagram can be seen as the combination of schematic structure diagram and the two differential equations, various links of the control system can be better distinguish in order to facilitate study the impact of parameters of various links on the system, not only the quantitative description of schematic diagram can be complemented, but also the pure mathematics abstraction calculation can be avoided. The modeling method of structural vibration control system is introduced in detail based on the block diagram; the simulation analysis is carried out through establishing the block diagram aiming at an example, which embodies simplicity of the method; the simulation results based on block diagram are verified use of the classic Newmark-βnumerical algorithm, which shows the correctness of the given method in this paper.%结构图可以看成是结构原理图与微分方程两者的结合,它可以形象地把控制系统各个环节区分开来,以便于研究各环节参数对系统的影响,既补充了原理图所缺少的定量描述,又避免了纯数学的抽象运算.本文针对建筑结构振动控制系统详细介绍了基于结构图的建模方法,结合一个具体算例构建其结构图并进行仿真分析,体现了该方法的简便性;采用经典的Newmark-β数值算法对基于结构图的仿真结果进行了验证,证明本文给定方法的正确性.