Experimental application of OMA solutions on the model of industrial structure

3rd International Conference on Innovative Materials, Structures and Technologies

Mironov, A.^1 ; Mironovs, D.^1

Vibroacoustic Laboratory, 7 Margrietas Street, LV-1046, Riga, Latvia^1

关键词: Data processing algorithms;    Experimental application;    Industrial structures;    Objective evaluation;    Operational modal analysis;    Structural diagnostics;    Structural health monitoring (SHM);    Wind generator systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012092/pdf
DOI  :  10.1088/1757-899X/251/1/012092

来源: IOP

【 摘 要 】

It is very important and sometimes even vital to maintain reliability of industrial structures. High quality control during production and structural health monitoring (SHM) in exploitation provides reliable functioning of large, massive and remote structures, like wind generators, pipelines, power line posts, etc. This paper introduces a complex of technological and methodical solutions for SHM and diagnostics of industrial structures, including those that are actuated by periodic forces. Solutions were verified on a wind generator scaled model with integrated system of piezo-film deformation sensors. Simultaneous and multi-patch Operational Modal Analysis (OMA) approaches were implemented as methodical means for structural diagnostics and monitoring. Specially designed data processing algorithms provide objective evaluation of structural state modification.