Journal ArticleDOI
Scaling of mode shapes from operational modal analysis using harmonic forces
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TLDR
In this paper, a new method for scaling mode shapes obtained by means of operational modal analysis is presented, which can be used in the presence of ambient vibration from traffic or wind loads, etc.About:
This article is published in Journal of Sound and Vibration.The article was published on 2017-10-27. It has received 18 citations till now. The article focuses on the topics: Operational Modal Analysis & Modal analysis using FEM.read more
Citations
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Journal ArticleDOI
A review of operational modal analysis techniques for in-service modal identification
TL;DR: Operational modal analysis techniques OMA and ISMA are reviewed with their development over the years and their pros and cons discussed.
Journal ArticleDOI
Damping behavior of 316L lattice structures produced by Selective Laser Melting
TL;DR: In this paper, a finite element model was used to design the test and microstructure investigations were performed to support the results obtained by dynamo-mechanical tests, where the internal friction of bulk and lattice specimens was measured in terms of delay between stress and deformation for different applied loads and frequencies.
Journal ArticleDOI
The Use of Polyurethane Injection as a Geotechnical Seismic Isolation Method in Large-Scale Applications: A Numerical Study
Michele Placido Antonio Gatto,Valentina Lentini,Francesco Castelli,Lorella Montrasio,Davide Grassi +4 more
TL;DR: In this article, the effect of polyurethane injections on the seismic surficial response of cohesionless soils was analyzed through dynamic finite element numerical analyses through GiD + OpenSees.
Journal ArticleDOI
Global scaling of operational modal analysis modes with the OMAH method
TL;DR: The OMAH method is extended to the case in which several excitation and response DOFs may be taken into account for the scaling of the modal model, and the capability of estimating residual terms to account for modes outside the frequency range of interest is included.
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Performance of Optical Structural Vibration Monitoring Systems in Experimental Modal Analysis.
TL;DR: In this paper, a comparative study of optical motion capture systems for modal analysis of a 3D building frame set in a laboratory environment is presented. But it is shown that the modal parameters identified from each system are not always equivalent, and that each system has limitations inherent to its design.
References
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The Natural Excitation Technique (NExT) for modal parameter extraction from operating wind turbines
TL;DR: The Natural Excitation Technique (NExT) is a method of modal testing that allows structures to be tested in their ambient environments as mentioned in this paper, and has been used extensively in the literature.
Book
Noise and Vibration Analysis: Signal Analysis and Experimental Procedures
TL;DR: Noise and Vibration Analysis is a complete and practical guide that combines both signal processing and modal analysis theory with their practical application in noise and vibration analysis.
Journal ArticleDOI
Identification of modal parameters from transmissibility measurements
TL;DR: In this paper, a new OMA approach to identify modal parameters from output-only transmissibility measurements is introduced, which does not make any assumption about the nature of the excitations to the system.
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Automated modal identification in operational conditions and its application to bridges
TL;DR: In this article, an automated modal identification procedure, belonging to the class of SSI techniques and based on the popular tool of clustering analysis, was proposed for the operational modal analysis of two bridges.