Wind-Induced Vibration Response of Substation Pillar-Type Switch Structures Based on Wind Tunnel Tests
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Le résumé fourni par la source
To investigate the wind-induced vibration characteristics of the high-voltage Disconnect Switch (DS) system in the switching-off state and quantitatively evaluate the contribution of higher-order modes to the overall structural response, this study employed the finite element software ABAQUS to perform dynamic analysis of a refined finite element model of the treble-columns part of the DS system. The wind loads’ spectral densities corresponding to translational degrees of freedom in the [Formula: see text]- and [Formula: see text]-directions and torsional motion about the [Formula: see text]-axis were derived. These were used to obtain the generalized force mode correction coefficients for various directions and modal orders. Subsequently, the wind-induced vibration responses were calculated using the frequency domain method applied to a simplified multi-degree-of-freedom model of a serially connected three-column structure. Based on including contributions from higher-order modes, the resulting responses were combined using the Square Root of Sum of Square (SRSS) method to determine the overall distribution of wind-induced responses under different wind directions. The results reveal that the modal response distribution is relatively sparse, indicating that the effect of three-dimensional wind coupling can be neglected in the structural wind response analysis. Under the switching-off state, the resonant component of the pulsating wind response in both the [Formula: see text]- and [Formula: see text]-directions dominates over the background component. The most unfavorable wind direction angles for displacement and acceleration responses are [Formula: see text] and [Formula: see text] in the [Formula: see text]-direction, and [Formula: see text] and [Formula: see text] in the [Formula: see text]-direction, respectively. While the first-order mode is sufficient for accurate displacement response predictions, the contributions of higher-order modes must be considered for both acceleration and internal force responses.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Wind-Induced Vibration Response of Substation Pillar-Type Switch Structures Based on Wind Tunnel Tests
- Date Crossref
- 11/12/2025
- Éditeur
- World Scientific Pub Co Pte Ltd
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Chongqing University Key Laboratory of New Technology for Construction of Cities in Mountain Area pays non établi dans la noticeUniversité ou école supérieure
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Chongqing University of Technology pays non établi dans la noticeUniversité ou école supérieure
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State Grid Corporation of China (China) pays non établi dans la noticeEntreprise
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China Power Engineering Consulting Group (China) pays non établi dans la noticeEntreprise
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North China Electric Power University pays non établi dans la noticeUniversité ou école supérieure
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School of Civil Engineering pays non établi dans la noticeUniversité ou école supérieure
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Institute Co. State Grid Electric Power Engineering Research pays non établi dans la noticeStructure de recherche
Key Laboratory of New Technology for Construction of Cities in Mountain Area — Chongqing University, Chongqing University of Technology et State Grid Corporation of China (China), avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.