{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0551"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0551","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΥΖΕΥΓΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ ΑΞΟΝΩΝ ΜΕ ΡΩΓΜΗ","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Παπαδόπουλος, Χρήστος"],"institution":"Πανεπιστήμιο Πατρών","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1987,"date_issued":"1987","date_published":"1987","updated_at":"2026-07-24T02:25:21Z","subjects":["Coupled vibrations","Coupling","Crack","Crack detection","Rotor","SHAFT","TURBOGENERATOR","ΑΝΙΧΝΕΥΣΗ ΡΩΓΜΩΝ","ΑΞΟΝΑΣ","Ρότορας","Ρωγμές","ΣΤΡΟΒΙΛΟΓΕΝΝΗΤΡΙΑ","Συζευγμένες ταλαντώσεις","Συζεύξεις","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0551"],"render_values":[{"text":"10.12681/eadd/0551","href":"https://doi.org/10.12681/eadd/0551","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0551","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Παπαδόπουλος, Χρήστος"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1987"]},{"key":"dc:publisher","label":"Institution","values":["Πανεπιστήμιο Πατρών","University of Patras"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Coupled vibrations","Coupling","Crack","Crack detection","Rotor","SHAFT","TURBOGENERATOR","ΑΝΙΧΝΕΥΣΗ ΡΩΓΜΩΝ","ΑΞΟΝΑΣ","Ρότορας","Ρωγμές","ΣΤΡΟΒΙΛΟΓΕΝΝΗΤΡΙΑ","Συζευγμένες ταλαντώσεις","Συζεύξεις","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0551","http://hdl.handle.net/10442/hedi/0551"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["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.","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 'Η ΠΕΡΙΣΤΡΕΦΟΜΕΝΟΥΣ ΑΞΟΝΕΣ. ΠΕΙΡΑΜΑΤΑ ΠΟΥ ΕΓΙΝΑΝ ΔΕΙΧΝΟΥΝ ΠΟΛΥ ΚΑΛΗ ΣΥΜΦΩΝΙΑ ΤΩΝ ΑΝΑΛΥΤΙΚΩΝ ΜΕ ΤΑ ΠΕΙΡΑΜΑΤΙΚΑ ΑΠΟΤΕΛΕΣΜΑΤΑ."]},{"key":"dc:title","label":"Title","values":["ΣΥΖΕΥΓΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ ΑΞΟΝΩΝ ΜΕ ΡΩΓΜΗ","COUPLED VIBRATIONS IN CRACKED SHAFTS"]}]}],"canonical_facts":{"dc:creator":["Παπαδόπουλος, Χρήστος"],"dc:date":["1987"],"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.","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 'Η ΠΕΡΙΣΤΡΕΦΟΜΕΝΟΥΣ ΑΞΟΝΕΣ. ΠΕΙΡΑΜΑΤΑ ΠΟΥ ΕΓΙΝΑΝ ΔΕΙΧΝΟΥΝ ΠΟΛΥ ΚΑΛΗ ΣΥΜΦΩΝΙΑ ΤΩΝ ΑΝΑΛΥΤΙΚΩΝ ΜΕ ΤΑ ΠΕΙΡΑΜΑΤΙΚΑ ΑΠΟΤΕΛΕΣΜΑΤΑ."],"dc:identifier":["10.12681/eadd/0551","http://hdl.handle.net/10442/hedi/0551"],"dc:language":["gre"],"dc:publisher":["Πανεπιστήμιο Πατρών","University of Patras"],"dc:subject":["Coupled vibrations","Coupling","Crack","Crack detection","Rotor","SHAFT","TURBOGENERATOR","ΑΝΙΧΝΕΥΣΗ ΡΩΓΜΩΝ","ΑΞΟΝΑΣ","Ρότορας","Ρωγμές","ΣΤΡΟΒΙΛΟΓΕΝΝΗΤΡΙΑ","Συζευγμένες ταλαντώσεις","Συζεύξεις","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"],"dc:title":["ΣΥΖΕΥΓΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ ΑΞΟΝΩΝ ΜΕ ΡΩΓΜΗ","COUPLED VIBRATIONS IN CRACKED SHAFTS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:21Z"}