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Aerodynamic Instability of Cables with Circular Appendages

Giappino, S. / Manenti, A. / Muggiasca, S.

The present paper describes the aerodynamic study performed on a cable fitted with a circular tube (pipe) of comparable diameter. Experimental tests were carried out in the high velocity low turbulence test section of the Politecnico di Milano wind tunnel. Typical galloping instability was observed, due to asymmetry introduced by the fitting, but also a strong torsional instability occurred. This phenomenon is not generally significant for cables, but it can appear when fittings change substantially the shape of the cable: for this reason, the study included experimental tests on this instability.

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Aerodynamic Instability of Cables with Circular Appendages

Giappino, S. / Manenti, A. / Muggiasca, S.

The present paper describes the aerodynamic study performed on a cable fitted with a circular tube (pipe) of comparable diameter. Experimental tests were carried out in the high velocity low turbulence test section of the Politecnico di Milano wind tunnel. Typical galloping instability was observed, due to asymmetry introduced by the fitting, but also a strong torsional instability occurred. This phenomenon is not generally significant for cables, but it can appear when fittings change substantially the shape of the cable: for this reason, the study included experimental tests on this instability.

Aerodynamic Instability of Cables with Circular Appendages

Giappino, S. / Manenti, A. / Muggiasca, S.

The present paper describes the aerodynamic study performed on a cable fitted with a circular tube (pipe) of comparable diameter. Experimental tests were carried out in the high velocity low turbulence test section of the Politecnico di Milano wind tunnel. Typical galloping instability was observed, due to asymmetry introduced by the fitting, but also a strong torsional instability occurred. This phenomenon is not generally significant for cables, but it can appear when fittings change substantially the shape of the cable: for this reason, the study included experimental tests on this instability.

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Title:

Aerodynamic Instability of Cables with Circular Appendages

Additional title:

Lecture Notes in Civil Engineering

Contributors:

Ricciardelli, Francesco (editor) / Avossa, Alberto Maria (editor) / Giappino, S. (author) / Manenti, A. (author) / Muggiasca, S. (author)

Conference:

Conference of the Italian Association for Wind Engineering ; 2018 ; Naples, Italy

Published in:

Proceedings of the XV Conference of the Italian Association for Wind Engineering ; Chapter: 26 ; 324-335

Lecture Notes in Civil Engineering ; 27

Publication date:

2019-03-13

Size:

12 pages

ISBN:

978-3-030-12815-9 , 978-3-030-12814-2

ISSN:

2366-2565 , 2366-2557

DOI:

https://doi.org/10.1007/978-3-030-12815-9_26

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Cable dynamics , Galloping , Wind tunnel , Torsional instability Engineering , Solid Mechanics , Fluid- and Aerodynamics , Building Construction and Design , Renewable and Green Energy

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