Multi-Decimation Identification-Based Modeling Method of Flexible Structures for Robust Vibration Control
Multi-Decimation Identification-Based Modeling Method of Flexible Structures for Robust Vibration Control
复制标题
基于多抽取辨识的柔性结构鲁棒振动控制建模方法
DOI：
10.1541/ieejias.124.471
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发表时间：
2004
影响因子：
--
通讯作者：
A. Isojima
中科院分区：
文献类型：
--
作者：
S. Hashimoto;T. Ishikawa;S. Adachi;H. Funato;K. Kamiyama;A. Isojima
在柔性结构的高性能主动振动控制中，要求建立准确的模型，不仅能识别柔性结构的1阶振型，还能识别2阶和3阶振型。提出了一种基于先进系统辨识理论的柔性结构模态模型的推导方法。在该识别中，采用多抽取(MD)运算，在较短的振动时间内准确地识别出较宽的频率范围。通过对每个识别出的振型进行圆曲线拟合，可以从MD识别出的模型中得到一个振型模型。将所提出的识别方法应用于三层结构，并通过识别和振动控制实验验证了该方法的有效性。
In high performance active vibration control for a flexible structure, it is requirement to establish an accurate model identified not only 1 but also 2 and 3 vibration modes of the flexible structure. This paper presents the derivation method of a modal model of flexible structures based on the advanced system identification theory. In this identification, multi-decimation(MD) operation is applied to identify wide frequency region in a short vibration time accurately. By using circle curve fitting on each identified mode, one modal model can be derived from MD identified models. We apply the proposed identification method to the three-story structure, and we show the effectiveness of the proposed method through both the identification and the vibration control experiments.