<rdf:RDF xmlns:crm='http://www.cidoc-crm.org/rdfs/cidoc_crm_v5.0.2_english_label.rdfs#' xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:dcterms='http://purl.org/dc/terms/' xmlns:doap='http://usefulinc.com/ns/doap#' xmlns:edm='http://www.europeana.eu/schemas/edm/' xmlns:ekt='https://www.semantics.gr/authorities/schemanamespaces/ekt#' xmlns:foaf='http://xmlns.com/foaf/0.1/' xmlns:ore='http://www.openarchives.org/ore/terms/' xmlns:owl='http://www.w3.org/2002/07/owl#' xmlns:rdaGr2='http://rdvocab.info/ElementsGr2/' xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#' xmlns:rdfs='http://www.w3.org/2000/01/rdf-schema#' xmlns:skos='http://www.w3.org/2004/02/skos/core#' xmlns:svcs='http://rdfs.org/sioc/services#' xmlns:wgs84_pos='http://www.w3.org/2003/01/geo/wgs84_pos#' xmlns:xalan='http://xml.apache.org/xalan'><edm:ProvidedCHO rdf:about='https://www.openarchives.gr/aggregator-openarchives/edm/phdtheses/000040-10442_0551'><dc:creator>Παπαδόπουλος, Χρήστος</dc:creator><dc:description>A TRANSVERSE CRACK ON A SHAFT CAUSES A COMPLIANCE (LOCAL FLEXIBILITY). THIS COMPLIANCE IS REPRESENTED BY A MATRIX 6X6, WHICH IS CALCULATED ANALYTICALLY. THE ASSYMETRY IN THE CRACK AREA CAUSES COUPLED VIBRATIONS. THIS PROPERTY IS USED TO DEVELOP A NEW METHOD FOR THE DETECTION OF A CRACK IN ROTATING AND NON-ROTATING SHAFTS. THE EXPERIMENTS SHOW VERY GOOD AGREEMENT OF THE ANALYTICAL AND EXPERIMENTAL RESULTS.</dc:description><dc:description>ΜΙΑ ΕΓΚΑΡΣΙΑ ΡΩΓΜΗ ΣΕ ΑΞΟΝΑ ΠΡΟΚΑΛΕΙ ΜΙΑ ΤΟΠΙΚΗ ΕΝΔΟΤΙΚΟΤΗΤΑ. Η ΕΝΔΟΤΙΚΟΤΗΤΑ ΑΥΤΗ ΠΑΡΙΣΤΑΝΕΤΑΙ ΜΕ ΜΙΑ ΜΗΤΡΑ 6Χ6 Η ΟΠΟΙΑ ΥΠΟΛΟΓΙΖΕΤΑΙ ΑΝΑΛΥΤΙΚΑ. Η ΑΣΥΜΜΕΤΡΙΑ ΣΤΗΝ ΠΕΡΙΟΧΗ ΤΗΣ ΡΩΓΜΗΣ ΠΡΟΚΑΛΕΙ ΣΥΖΕΥΓΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ. Η ΙΔΙΟΤΗΤΑ ΑΥΤΗ ΧΡΗΣΙΜΟΠΟΙΕΙΤΑΙ ΓΙΑ ΤΗΝ ΑΝΑΠΤΥΞΗ ΜΙΑΣ ΝΕΑΣ ΜΕΘΟΔΟΥ ΓΙΑ ΤΗΝ ΑΝΙΧΝΕΥΣΗ ΡΩΓΜΩΝ ΣΕ ΑΚΙΝΗΤΟΥΣ &apos;Η ΠΕΡΙΣΤΡΕΦΟΜΕΝΟΥΣ ΑΞΟΝΕΣ. ΠΕΙΡΑΜΑΤΑ ΠΟΥ ΕΓΙΝΑΝ ΔΕΙΧΝΟΥΝ ΠΟΛΥ ΚΑΛΗ ΣΥΜΦΩΝΙΑ ΤΩΝ ΑΝΑΛΥΤΙΚΩΝ ΜΕ ΤΑ ΠΕΙΡΑΜΑΤΙΚΑ ΑΠΟΤΕΛΕΣΜΑΤΑ.</dc:description><dc:identifier>10.12681/eadd/0551</dc:identifier><dc:identifier>http://hdl.handle.net/10442/hedi/0551</dc:identifier><dc:language>gre</dc:language><dc:publisher>Πανεπιστήμιο Πατρών</dc:publisher><dc:publisher>University of Patras</dc:publisher><dc:subject>Επιστήμη Μηχανολόγου Μηχανικού</dc:subject><dc:subject>ΣΤΡΟΒΙΛΟΓΕΝΝΗΤΡΙΑ</dc:subject><dc:subject>Συζευγμένες ταλαντώσεις</dc:subject><dc:subject rdf:resource='http://semantics.gr/authorities/EKT-voc-classifier/1563740051'></dc:subject><dc:subject>Coupled vibrations</dc:subject><dc:subject>SHAFT</dc:subject><dc:subject>Συζεύξεις</dc:subject><dc:subject>Crack detection</dc:subject><dc:subject>Rotor</dc:subject><dc:subject>Επιστήμες Μηχανικού και Τεχνολογία</dc:subject><dc:subject>Engineering and Technology</dc:subject><dc:subject>TURBOGENERATOR</dc:subject><dc:subject>ΑΞΟΝΑΣ</dc:subject><dc:subject>Ρότορας</dc:subject><dc:subject>Coupling</dc:subject><dc:subject>ΑΝΙΧΝΕΥΣΗ ΡΩΓΜΩΝ</dc:subject><dc:subject>Mechanical Engineering</dc:subject><dc:subject>Ρωγμές</dc:subject><dc:subject>Crack</dc:subject><dc:title>ΣΥΖΕΥΓΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ ΑΞΟΝΩΝ ΜΕ ΡΩΓΜΗ</dc:title><dc:title>COUPLED VIBRATIONS IN CRACKED SHAFTS</dc:title><dc:type>PhD Thesis</dc:type><dc:type rdf:resource='http://semantics.gr/authorities/openarchives-item-types/PhD-thesis'></dc:type><dcterms:created>1987</dcterms:created></edm:ProvidedCHO><skos:Concept rdf:about='http://semantics.gr/authorities/EKT-voc-classifier/1563740051'><skos:prefLabel xml:lang='el'>Αεροδιαστημική μηχανική</skos:prefLabel><skos:prefLabel xml:lang='en'>Aerospace Engineering</skos:prefLabel><skos:broader rdf:resource='http://semantics.gr/authorities/EKT-voc-classifier/930845496'></skos:broader><skos:exactMatch rdf:resource='http://vocabularies.unesco.org/thesaurus/concept1569'></skos:exactMatch><skos:exactMatch rdf:resource='http://id.loc.gov/authorities/subjects/sh95007821'></skos:exactMatch><skos:exactMatch rdf:resource='http://semantics.gr/authorities/EKT-voc/1563740051'></skos:exactMatch><skos:note xml:lang='en'>isi - Engineering, Aerospace includes resources concerned with astronautics, aeronautics, aerospace, and aviation. Topics covered include the design and construction of aircraft, space vehicles, missiles, satellites, instrumentation, and power units, as well as the launch, flight, and guidance of crafts in the earth&apos;s atmosphere or in space. Resources in this category draw from many fields, including mechanics and mechanical engineering, automation, instrumentation, and materials science.</skos:note></skos:Concept><skos:Concept rdf:about='http://semantics.gr/authorities/openarchives-item-types/PhD-thesis'><skos:prefLabel xml:lang='el'>Διδακτορική διατριβή</skos:prefLabel><skos:prefLabel xml:lang='en'>PhD thesis</skos:prefLabel><skos:altLabel xml:lang='en'>Doctoral dissertations</skos:altLabel><skos:broader rdf:resource='http://semantics.gr/authorities/openarchives-item-types/Research-Paper-'></skos:broader><skos:exactMatch rdf:resource='http://vocab.getty.edu/aat/300312076'></skos:exactMatch></skos:Concept><ore:Aggregation rdf:about='https://www.openarchives.gr/aggregator-openarchives/edm/aggregation/provider/000040-10442_0551%231'><edm:aggregatedCHO rdf:resource='https://www.openarchives.gr/aggregator-openarchives/edm/phdtheses/000040-10442_0551'></edm:aggregatedCHO><edm:dataProvider>Εθνικό Κέντρο Τεκμηρίωσης και Ηλεκτρονικού Περιεχομένου (ΕΚΤ)</edm:dataProvider><edm:isShownAt rdf:resource='http://hdl.handle.net/10442/hedi/0551'></edm:isShownAt><edm:provider>Greek Aggregator OpenArchives.gr | National Documentation Centre (EKT)</edm:provider><edm:rights>other</edm:rights></ore:Aggregation></rdf:RDF>