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Sensors 2019, 19(2), 220; https://doi.org/10.3390/s19020220

Experimental Study for Damage Identification of Storage Tanks by Adding Virtual Masses

1
Department of Civil Engineering and State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
2
Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin 150090, China
3
Institute of Fundamental Technological Research, Polish Academy of Sciences, 02-106 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Received: 3 December 2018 / Revised: 4 January 2019 / Accepted: 5 January 2019 / Published: 9 January 2019
(This article belongs to the Special Issue Smart Sensors and Smart Structures)
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Abstract

This research proposes a damage identification approach for storage tanks that is based on adding virtual masses. First, the frequency response function of a structure with additional virtual masses is deduced based on the Virtual Distortion Method (VDM). Subsequently, a Finite Element (FE) model of a storage tank is established to verify the proposed method; the relation between the added virtual masses and the sensitivity of the virtual structure is analyzed to determine the optimal mass and the corresponding frequency with the highest sensitivity with respect to potential damages. Thereupon, the damage can be localized and quantified by comparing the damage factors of substructures. Finally, an experimental study is conducted on a storage tank. The results confirm that the proposed method is feasible and practical, and that it can be applied for damage identification of storage tanks. View Full-Text
Keywords: damage identification; storage tanks; sensitivity analysis; frequency damage identification; storage tanks; sensitivity analysis; frequency
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Hou, J.; Wang, P.; Jing, T.; Jankowski, Ł. Experimental Study for Damage Identification of Storage Tanks by Adding Virtual Masses. Sensors 2019, 19, 220.

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