鉴定(生物学)
情态动词
系统标识
计算机科学
特征向量
子空间拓扑
工作模态分析
实验数据
基质(化学分析)
模态分析
算法
数学
数据挖掘
工程类
人工智能
结构工程
有限元法
统计
物理
生物
植物
复合材料
化学
高分子化学
材料科学
量子力学
度量(数据仓库)
作者
Wenchao Li,Viet-Hung Vu,Zhaoheng Liu,Marc Thomas,Bruce Hazel
标识
DOI:10.1177/1077546317734670
摘要
This paper presents a method for the extraction of modal parameters for identification of time-varying systems using Data-Driven Stochastic Subspace Identification (SSI-DATA). In practical applications of SSI-DATA, both the modal parameters and computational ones are mixed together in the identified results. In order to differentiate the structural ones from computational ones, a new method based on the eigen-decomposition of the state matrix constructed in SSI-DATA is proposed. The efficiency of the proposed method is demonstrated through numerical simulation of a lumped-mass system and experimental test of a moving robot for extracting excited natural frequencies of the system.
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