{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T13:00:24Z","timestamp":1753880424217,"version":"3.41.2"},"reference-count":0,"publisher":"American Society of Mechanical Engineers","content-domain":{"domain":["asmedigitalcollection.asme.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,7,14]]},"abstract":"<jats:p>In this paper we address the identification of the spectral and spatial features of random flow excitations, for multi-supported tubular components such as steam generator tubes and nuclear fuel rods. In the proposed work, source identification is performed from a set of measured vibratory responses, in the following manner: (1) The modal response spectra and modeshape amplitudes at the measurement locations are first extracted through a blind decomposition of the physical response matrix, using the SOBI method; (2) The continuous modeshapes are interpolated from the identified values at the measurement locations; (3) The system modal parameters are identified from the modal responses using a simple SDOF fitting technique; (4) Inversion from the modal response spectra is performed for the identification of the modal excitation spectra; (5) Finally, an equivalent physical excitation spectra as well as the flow velocity profiles are estimated. The proposed approach is illustrated with identification results based on realistic numerical simulations of a multi-supported tube under linear support conditions.<\/jats:p>","DOI":"10.1115\/pvp2013-98146","type":"proceedings-article","created":{"date-parts":[[2014,1,17]],"date-time":"2014-01-17T17:41:08Z","timestamp":1389980468000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":1,"title":["Identification of the Turbulence Force Field Excitation From a Set of Vibratory Responses of a Multi-Supported Tube"],"prefix":"10.1115","author":[{"given":"Jose","family":"Antunes","sequence":"first","affiliation":[{"name":"Instituto Superior T\u00e9cnico-Universidade T\u00e9cnica de Lisboa, Sacavem, Portugal"}]},{"given":"Laurent","family":"Borsoi","sequence":"additional","affiliation":[{"name":"CEA-Saclay, Gif-Sur-Yvette, France"}]},{"given":"Xavier","family":"Delaune","sequence":"additional","affiliation":[{"name":"CEA-Saclay, Gif-Sur-Yvette, France"}]},{"given":"Philippe","family":"Piteau","sequence":"additional","affiliation":[{"name":"CEA-Saclay, Gif-Sur-Yvette, France"}]}],"member":"33","published-online":{"date-parts":[[2014,1,17]]},"event":{"name":"ASME 2013 Pressure Vessels and Piping Conference","start":{"date-parts":[[2013,7,14]]},"sponsor":["Pressure Vessels and Piping Division","Nondestructive Evaluation Engineering Division"],"location":"Paris, France","end":{"date-parts":[[2013,7,18]]},"acronym":"PVP2013"},"container-title":["Volume 4: Fluid-Structure Interaction"],"original-title":[],"link":[{"URL":"http:\/\/asmedigitalcollection.asme.org\/PVP\/proceedings-pdf\/doi\/10.1115\/PVP2013-98146\/4437002\/v004t04a062-pvp2013-98146.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,9,2]],"date-time":"2019-09-02T21:42:51Z","timestamp":1567460571000},"score":1,"resource":{"primary":{"URL":"https:\/\/asmedigitalcollection.asme.org\/PVP\/proceedings\/PVP2013\/55683\/Paris,%20France\/280715"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,7,14]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1115\/pvp2013-98146","relation":{},"subject":[],"published":{"date-parts":[[2013,7,14]]},"article-number":"V004T04A062"}}