| Summary: |
The Project Steel and Dampers for Poles (SD Poles) aims to create new technical and scientific knowledge to develop and conceptualize new solutions of tubular metallic structures capable of overcoming the current limitations of the state of the art regarding the dynamic actions generated by wind and car crashes, corresponding to the concepts of Vortex Shedding and Passive Safety.
In this context, this Project will focus its R&D on 3 levels:
1.Viability and technical impact of the incorporation of high strength steel
2.Assessment of new damping methods
3.Analysis of new forms of the base plates built-in the structures and of the corresponding securing methods and fixation systems (relevant in high-dimensional structures, as it increases bending moments and reduces the axial loading).
Accordingly, and as a result of this R&D effort, Metalogalva intends to introduce in the market new products, resistant and technically robust to Vortex Shedding and Passive Safety: high-dimensional svelte structures with reduced visual impact; structures with passive safety characteristics using differentiated welding processes; tubular metallic structures with extremely thinned thickness but resistant in superior heights ;and new stamped flanges and respective securing methods, with a positive contribution to address the abovementioned concepts.
In order to fulfill the R&D challenges inherent to this Project, Metalogalva and FEUP established a consortium, creating a R&D team with broad technical skills for the exploration of new materials and methodologies, as well as for the creation of new technologies and/or tools, in order to develop new products capable of addressing and anticipating markets? needs and overcoming the lack of technical and scientific knowledge in these areas.
In the event of a successful outcome, the new products will have a marketable and international nature, as they will stand as an absolute innovation in relation to the current market solutions. |
| Results: |
Resultados pela equipa FEUP associados a publicaçoes cientificas internacionais e relatorios internos:
1) Cyrus Eshaghi, Rui M M C Barros - "Analysis of Vortex Shedding Effects on Tower Structures"; FEUP internal report under SD-Poles of the synthesis of vortex shedding studies at FEUP; work done/written by 1st author under supervision of 2nd author as Adviser; Dec 2021 until April 2022;
2) Cyrus Eshaghi, Rui Carneiro Barros(*), José M Castro - "ANALYSIS OF VORTEX SHEDDING EFFECTS ON TOWER STRUCTURES" (PAPER REF: 19221); Proceedings M2D2022 - 9th International Conf Mechanics and Materials in Design, Funchal/Portugal 26-30 June 2022, Editors J.F. Silva Gomes, S.A. Meguid;
3) Anis I. Mohabeddine, Cyrus Eshaghi, Rui Carneiro Barros, José A.F.O.Correia, José M Castro - "Variability in the Nonlinear Modelling Parameters of Steel I-shaped Beams Subjected to Cyclic Loading Considering Manufacturing Tolerances"; SDSS 2022 - International colloquium on stability and ductility of steel structures; 14-16 september 2022, Universidade de Aveiro, Portugal - © 2022 Ernst & Sohn GmbH. · ce/papers 5 (2022), No. 4;
4) Rui Carneiro Barros - "Dimensionamento de um TLD para controle de vibracoes por Vortex Shedding (Partilha de Vortices) de uma torre tubular"; Conjunto de calculos e de suporte excel justificativos do "TLD Design" baseado na bibliografia internacional mais recente pesquisada e criticamente utilizada de Dez 2022 a Março 2023;
5) Cyrus Eshaghi, Arefeh Mazarei, Rui Carneiro Barros, Xavier Romão, José M Castro - "Machine Learning Approach for Predicting Flexural Behavior Variations of I-Shaped Steel Beams due to Manufacturing Tolerances"; COMPDYN 2023 - 9th ECCOMAS Thematic Conf on Computational Methods in Structural Dynamics and Earthquake Engineering, M. Papadrakakis, M. Fragiadakis (eds.), Athens, Greece, 12-14 June 2023;
6) Anelise Dick, Rui Carneiro 0Barros, Manuel Teixeira Braz César - "Comparative study of optimum formulations for tuned mass dampers in small wind turbine towers”; in Proceedings of the Nineth ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2023), M. Papadrakakis, M. Fragiadakis (Eds.), Athens, Greece, 12-14 June, 2023 --- (resultados experimentais com equipamento comprado no ambito SD-Poles);
7) Anelise Dick , Rui Carneiro Barros, Manuel Teixeira Braz César - “RESPONSE OF A SMALL WIND TURBINE TOWER UNDER EARTHQUAKE LOADS”; in Proceedings of the Nineth ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2023), M. Papadrakakis, M. Fragiadakis (Eds.), Athens, Greece, 12-14 June, 2023 --- (resultados experimentais com equipamento comprado no ambito SD-Poles);
8) Cyrus Eshaghi, Anis Mohabeddine, Rui Carneiro Barros, Xavier Romão, José M Castro --- "Evaluating the Influence of Manufacturing Tolerances on the Cyclic Behavior of Steel Members"; Conference Proceedings of the DCE23-Doctoral Congress in Engineering, June 2023, Porto-Portugal;
9) Rui C Barros, Anelise Dick, Fabio Paiva --- "Resultados de Monitorizacao Estrutural (SHM) de uma torre tubular da Metalogalva-3 na Trofa"; trabalho ainda em conclusao que deveria ser incluido como Deliverable do SD-Poles se o projecto tivesse sido temporalmente extendido ate fim de julho 2023 como inicialmente solicitado!
(Obs. Final: Note-se que trabalhos cientificos de divulgacao internacional 5-6-7-8 foram submetidos/aceites em Março 2023, para conf posteriores a conclusao do projecto que nao foi prolongado ate julho como desejado)
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