PSI - Issue 32

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDir ct StructuralIntegrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2021) 000 – 000

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Procedia Structural Integrity 32 (2021) 216–223

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Abstract The process of creating a vibration monitoring system for a mine headframe is considered. This building is a large metal structure that provides lifting ore from the mine and transfer it to the factory for processing. The structure is exposed to aggressive corrosive effects, which leads to its destruction. The developed system is aimed at preventing emergency situations caused by damage to structural elements. This system analyzes the vibrational response of the structure to technological operations that provide excitation of a wide range of natural frequencies. The procedure for finding time intervals corresponding to technological operations is considered. The features of the dynamic impact corresponding to one of the technological operations - the dropping of ore into the storage are shown. Methods of processing vibrograms, which allow determining the natural frequencies of a structure, are considered. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Keywords: vibration-based monitoring, metal structure, headframe, technological operations, natural frequencies; 1. Introduction Large-scale metal structures are subject to destruction in aggressive corrosive environment. Corrosion of metal reduces the cross-section of structural elements and also destroys their bolted and welded joints. In the absence of control, this can lead to their partial or complete destruction. One of the ways to ensure the safe operation of The process of creating a vibration monitoring system for a mine headframe is considered. This building is a large metal structure that vides lifting ore from the mine and tran fer it to the factory for p oc ssing. The structure is exposed to ag ressive co rosiv effects, which leads to its destruct on. The developed system is aimed at preventing emergency situations c used by damage to stru ural elem nts. Th sy em analyzes the vibrational response of the structur to technological operations that provide excitation of a wide range of natural frequ ncies. The pr cedu for finding time intervals corr sponding to technol gical ope ations is onsidered. The fe tures of the dynamic impact cor esponding to one of th techno ogical o erat ons - the dropp ng f o e nto the storage are shown. Methods of processing vibr grams, which allow det rmining the natural frequencies f a structu , are con idered. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review u der re ponsibility of scientific committe of the XXIIth Winter School on Continuous Media Mechanics” K ywords: vibration-ba ed monitoring, metal structure, headframe, technological operations, natural freque cies; 1. Introduction Large-scale metal structures are subject to destruction in aggressive corrosive environment. Corrosion of metal reduces the cross-section of structural elements and als destroys their b lted and welded joints. In the absenc of control, t is can l ad to their parti or complete de truction. One of the w ys to ensure the safe operation XXIIth Winter School on Continuous Media Mechanics Vibration-based monitoring of engineering metal structures during technological operations Glot I. О ., Gusev G.N., Shardakov I.N., Shestakov A.P.*, Tsvetkov R.V., Yepin V.V. Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Science, 1 Akademika Koroleva St., Perm, Russian Federation XXIIth Winter School on Continuous Media Mechanics Vibration-based monitoring of engineering metal structures during technological operations Glot I. О ., Gusev G.N., Shardakov I.N., Shestakov A.P.*, Tsvetkov R.V., Yepin V.V. Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Science, 1 Akademika Koroleva St., Perm, Russian Federation Abstract

* Corresponding author. Tel.: +7-902-8008972. E-mail address: shap@icmm.ru * Corresponding author. Tel.: +7-902-8008972. E-mail address: shap@icmm.ru

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review u der responsibility of t scientific committe of the XXIIth Winter School on Continuous Media Mechanics”

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 10.1016/j.prostr.2021.09.031