{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T19:20:11Z","timestamp":1770751211215,"version":"3.50.0"},"reference-count":0,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2015,4,1]],"date-time":"2015-04-01T00:00:00Z","timestamp":1427846400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"published-print":{"date-parts":[[2015,4]]},"abstract":"<jats:p>We consider a real industrial case concerning 148 shut-down multidimensional transients of a nuclear power plant (NPP) turbine. The objective is to identify groups of transients with similar functional behaviors, and distinguish transients with peculiar behaviors which can be representative of anomalous conditions in the turbine. This objective is pursued by analyzing 7 vibration signals referred to the turbine shaft. The novelty of the work consists in transforming the signals into the \u201cturbine speed-domain\u201d for aligning them according to the turbine speed, so as to easily recognize outlier transients and then performing a fuzzy similarity analysis based on pointwise differences. Spectral analysis and Fuzzy C-Means (FMC) clustering are applied to identify the turbine anomalous conditions.<\/jats:p>","DOI":"10.3233\/ifs-141459","type":"journal-article","created":{"date-parts":[[2019,12,2]],"date-time":"2019-12-02T19:37:51Z","timestamp":1575315471000},"page":"1723-1731","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":12,"title":["Unsupervised clustering of vibration signals for identifying anomalous conditions in a nuclear turbine"],"prefix":"10.1177","volume":"28","author":[{"given":"Piero","family":"Baraldi","sequence":"first","affiliation":[{"name":"Energy Department, Politecnico di Milano, Via Ponzio, Milan, Italy"}]},{"given":"Francesco","family":"Di Maio","sequence":"additional","affiliation":[{"name":"Energy Department, Politecnico di Milano, Via Ponzio, Milan, Italy"}]},{"given":"Marco","family":"Rigamonti","sequence":"additional","affiliation":[{"name":"Energy Department, Politecnico di Milano, Via Ponzio, Milan, Italy"}]},{"given":"Enrico","family":"Zio","sequence":"additional","affiliation":[{"name":"Energy Department, Politecnico di Milano, Via Ponzio, Milan, Italy"},{"name":"Chair on Systems Science and the Energetic Challenge, Ecole Centrale Paris and Supelec, France"}]},{"given":"Redouane","family":"Seraoui","sequence":"additional","affiliation":[{"name":"EDF-R&amp;D\\STEP Simulation et Traitement de l'information pour l'exploitation des syst\u00e8mes de production, 6 quai Watier, Chatou Cedex, France"}]}],"member":"179","published-online":{"date-parts":[[2015,4]]},"container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/IFS-141459","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/IFS-141459","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T10:48:29Z","timestamp":1770720509000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.3233\/IFS-141459"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,4]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2015,4]]}},"alternative-id":["10.3233\/IFS-141459"],"URL":"https:\/\/doi.org\/10.3233\/ifs-141459","relation":{},"ISSN":["1064-1246","1875-8967"],"issn-type":[{"value":"1064-1246","type":"print"},{"value":"1875-8967","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,4]]}}}