Scipediacontent: Scipediacontent moved page Draft Content 661334083 to Minardo et al 2012a

2021-02-16T10:36:02Z

Scipediacontent moved page Draft Content 661334083 to Minardo et al 2012a

Scipediacontent: Created page with " == Abstract == In this work we report an experimental modal analysis of a cantilever beam, carried out by use of a Brillouin optical time-domain analysis (BOTDA) setup opera..."

2021-02-16T10:35:59Z

Created page with " == Abstract == In this work we report an experimental modal analysis of a cantilever beam, carried out by use of a Brillouin optical time-domain analysis (BOTDA) setup opera..."

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== Abstract ==

In this work we report an experimental modal analysis of a cantilever beam, carried out by use of a Brillouin optical time-domain analysis (BOTDA) setup operated at a fixed pump–probe frequency shift. The employed technique permitted us to carry out distributed strain measurements along the vibrating beam at a maximum acquisition rate of 108 Hz. The mode shapes of the first three bending modes (1.7, 10.8, 21.6 Hz) were measured for the structure under test. The good agreement between the experimental and numerical results based on a finite-element method (FEM) analysis demonstrates that Brillouin based distributed sensors are well suited to perform the modal analysis of a vibrating structure. This type of analysis may be useful for applications in structural health monitoring where changes in mode shapes are used as indicators of the damage to the structure.

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.1088/0964-1726/21/12/125022 http://dx.doi.org/10.1088/0964-1726/21/12/125022]

* [http://hdl.handle.net/11591/322261 http://hdl.handle.net/11591/322261]

* [https://iopscience.iop.org/article/10.1088/0964-1726/21/12/125022 https://iopscience.iop.org/article/10.1088/0964-1726/21/12/125022],
: [https://iopscience.iop.org/article/10.1088/0964-1726/21/12/125022/pdf https://iopscience.iop.org/article/10.1088/0964-1726/21/12/125022/pdf],
: [https://academic.microsoft.com/#/detail/1989990441 https://academic.microsoft.com/#/detail/1989990441]

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Minardo et al 2012a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 661334083 to Minardo et al 2012a

Scipediacontent: Created page with " == Abstract == In this work we report an experimental modal analysis of a cantilever beam, carried out by use of a Brillouin optical time-domain analysis (BOTDA) setup opera..."