Fully automated precise operational modal identification
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2021.111988
Abstract: Abstract Modal identification has been playing an important role in structural health monitoring. Traditional modal identification process requires too much user interaction and many manually defined thresholds. In this study, a new fully automated modal… read more here.
Keywords: modal identification; fully automated; identification; proposed approach ... See more keywords
Modal identification of concrete arch dam by fully automated operational modal identification
Sign Up to like & getrecommendations! Published in 2021 at "Structures"
DOI: 10.1016/j.istruc.2021.03.028
Abstract: Abstract Modal identification is a type of system identification, which studies on the modal parameters of systems by using modal test. In the case of using operational or ambient modal analysis, there is no need… read more here.
Keywords: arch dam; fully automated; identification; modal identification ... See more keywords
On using the Hilbert transform for blind identification of complex modes: A practical approach
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.09.017
Abstract: Abstract The modal identification of dynamical systems under operational conditions, when subjected to wide-band unmeasured excitations, is today a viable alternative to more traditional modal identification approaches based on processing sets of measured FRFs or… read more here.
Keywords: modal identification; using hilbert; complex modes; blind identification ... See more keywords
Adaptive modal identification of structures with equivariant adaptive separation via independence approach
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.09.033
Abstract: Abstract An efficient output-only Blind Source Separation (BSS) method was recently introduced for the modal identification of structures. BSS procedures recover a set of independent sources from their unknown linear mixtures when only mixtures are… read more here.
Keywords: modal identification; adaptive separation; equivariant adaptive; separation ... See more keywords
Near-to-node modal identification using multiple related response models
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DOI: 10.1016/j.measurement.2020.108793
Abstract: Abstract Experimental modal analysis (EMA) is a well-established procedure for determining the modal parameters of a structure. Typically, a point-force is used to excite the structure and the translational response is measured. When performing an… read more here.
Keywords: response; modal identification; multiple related; reference ... See more keywords
Instantaneous modal identification under varying structural characteristics: A decentralized algorithm
Sign Up to like & getrecommendations! Published in 2020 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.106750
Abstract: Abstract One of the latest trends in structural health monitoring involves the use of wireless decentralized sensing systems, developed to reduce costs and speed up the whole monitoring process. The main purpose of this paper… read more here.
Keywords: identification varying; varying structural; instantaneous modal; modal identification ... See more keywords
Broadband Acoustic Modal Identification by Array Nonsynchronous Measurements with One Reference
Sign Up to like & getrecommendations! Published in 2023 at "AIAA Journal"
DOI: 10.2514/1.j062596
Abstract: This paper proposes a broadband acoustic modal identification method based on nonsynchronous measurements from a microphone array, which overcomes the acoustic modal aliasing problem caused by a limited number of microphones. In the proposed method,… read more here.
Keywords: modal; modal identification; broadband acoustic; nonsynchronous measurements ... See more keywords
Damage Estimation of Full-Scale Infilled RC Frames under Pseudo-Dynamic Excitation by Means of Output-Only Modal Identification
Sign Up to like & getrecommendations! Published in 2023 at "Buildings"
DOI: 10.3390/buildings13040948
Abstract: To assess the health condition of structures and infrastructure during their service lives, continuous vibration-based monitoring represents a viable and cost-effective solution. Model updating and digital twins are increasingly adopted for damage detection. However, significant… read more here.
Keywords: scale; damage; output modal; identification ... See more keywords