{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1529"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1529","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΕΡΕΥΝΑ ΕΠΙ ΤΗΣ ΔΙΑΓΝΩΣΤΙΚΗΣ ΑΞΙΟΠΙΣΤΙΑΣ ΤΩΝ ΣΥΣΤΗΜΑΤΩΝ","abstract":"THE PURPOSE OF THIS WORK IS FOR STUDYING BY MEANS OF DIAGNOSTIC METHODS THE BEHAVIOUR OF THE MATERIALS DURING THEIR STRAIN. THIS WORK CONSISTS OF TWO PARTS. THE FIRST PART IS RESEARCHING THE BEHAVIOUR OF THE MATERIALS IN STATIC CONDITIONS AND THE SECOND PART STUDIES THE RESULTS THAT HAVE THE DYNAMIC LOADING ON THE STRUCTURES AND ON THE MATERIALS GENERALLY. THE METHOD THAT IS USED FOR THE EXPERIMENTAL PROCEDURE IS THIS OF SPECTRUM ANALYSIS. NAMELY A PROPER MONITORING SYSTEM IS USED TO TAKE AND ANALYZE THE MEASUREMENTS AND THE EFFECTS USING MATHEMATICAL PROCESSES SUCH AS THE VASCHY-BUCKNIGHAM THEOREM ARE GUIDED TO USEFUL CONCLUSIONS. IN THE PRESENT WORK ARE TAKEN MEASUREMENTS OF BOTH SOUND AND VIBRATION AND THE RESULTS COMING FROM THE SOUND AND VIBRATION ARE SIMILAR. AT THE END AREBUILDED EQUATIONS THAT CAN DESCRIBE THE WHOLE PROCESS WITH SATISFACTORY PRECISION.","abstract_html":"THE PURPOSE OF THIS WORK IS FOR STUDYING BY MEANS OF DIAGNOSTIC METHODS THE BEHAVIOUR OF THE MATERIALS DURING THEIR STRAIN. THIS WORK CONSISTS OF TWO PARTS. THE FIRST PART IS RESEARCHING THE BEHAVIOUR OF THE MATERIALS IN STATIC CONDITIONS AND THE SECOND PART STUDIES THE RESULTS THAT HAVE THE DYNAMIC LOADING ON THE STRUCTURES AND ON THE MATERIALS GENERALLY. THE METHOD THAT IS USED FOR THE EXPERIMENTAL PROCEDURE IS THIS OF SPECTRUM ANALYSIS. NAMELY A PROPER MONITORING SYSTEM IS USED TO TAKE AND ANALYZE THE MEASUREMENTS AND THE EFFECTS USING MATHEMATICAL PROCESSES SUCH AS THE VASCHY-BUCKNIGHAM THEOREM ARE GUIDED TO USEFUL CONCLUSIONS. IN THE PRESENT WORK ARE TAKEN MEASUREMENTS OF BOTH SOUND AND VIBRATION AND THE RESULTS COMING FROM THE SOUND AND VIBRATION ARE SIMILAR. AT THE END AREBUILDED EQUATIONS THAT CAN DESCRIBE THE WHOLE PROCESS WITH SATISFACTORY PRECISION.","abstract_has_math":false,"creators":["Ρογδάκης, Εμμανουήλ"],"institution":"Πανεπιστήμιο Πατρών","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1990,"date_issued":"1990","date_published":"1990","updated_at":"2026-07-24T02:24:59Z","subjects":["DIAGNOSTIC RELIABILITY OF THE SYSTEM","FINDING THE OPTIMAL MODEL","FREE AND FORCED VIBRATIONS","Modal analysis","MODELLING OF THE PROBLEM","Monitoring systems","RELIABILITY FACTOR","Spectrum analysis","STUDY OF VIBRATION AND NOISE","THEORY AND SIMILARITY MONOMIALS","ΑΝΑΛΥΣΗ ΜΟΡΦΩΝ","ΔΙΑΓΝΩΣΤΙΚΗ ΑΞΙΟΠΙΣΤΙΑ ΤΟΥ ΣΥΣΤΗΜΑΤΟΣ","ΕΛΕΥΘΕΡΕΣ ΚΑΙ ΕΞΑΝΑΓΚΑΣΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ","ΘΕΩΡΙΑ ΚΑΙ ΜΟΝΩΝΥΜΑ ΟΜΟΙΟΤΗΤΑΣ","ΜΕΛΕΤΗ ΤΑΛΑΝΤΩΣΕΩΝ-ΘΟΡΥΒΟΥ","ΜΟΝΤΕΛΛΟΠΟΙΗΣΗ ΤΟΥ ΠΡΟΒΛΗΜΑΤΟΣ","ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΒΕΛΤΙΣΤΟΥ ΜΟΝΤΕΛΛΟΥ","ΣΥΝΤΕΛΕΣΤΗΣ ΑΞΙΟΠΙΣΤΙΑΣ","ΣΥΣΤΗΜΑΤΑ ΠΑΡΑΚΟΛΟΥΘΗΣΗΣ","Φασματική ανάλυση","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/1529"],"render_values":[{"text":"10.12681/eadd/1529","href":"https://doi.org/10.12681/eadd/1529","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1529","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Ρογδάκης, Εμμανουήλ"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1990"]},{"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":["DIAGNOSTIC RELIABILITY OF THE SYSTEM","FINDING THE OPTIMAL MODEL","FREE AND FORCED VIBRATIONS","Modal analysis","MODELLING OF THE PROBLEM","Monitoring systems","RELIABILITY FACTOR","Spectrum analysis","STUDY OF VIBRATION AND NOISE","THEORY AND SIMILARITY MONOMIALS","ΑΝΑΛΥΣΗ ΜΟΡΦΩΝ","ΔΙΑΓΝΩΣΤΙΚΗ ΑΞΙΟΠΙΣΤΙΑ ΤΟΥ ΣΥΣΤΗΜΑΤΟΣ","ΕΛΕΥΘΕΡΕΣ ΚΑΙ ΕΞΑΝΑΓΚΑΣΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ","ΘΕΩΡΙΑ ΚΑΙ ΜΟΝΩΝΥΜΑ ΟΜΟΙΟΤΗΤΑΣ","ΜΕΛΕΤΗ ΤΑΛΑΝΤΩΣΕΩΝ-ΘΟΡΥΒΟΥ","ΜΟΝΤΕΛΛΟΠΟΙΗΣΗ ΤΟΥ ΠΡΟΒΛΗΜΑΤΟΣ","ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΒΕΛΤΙΣΤΟΥ ΜΟΝΤΕΛΛΟΥ","ΣΥΝΤΕΛΕΣΤΗΣ ΑΞΙΟΠΙΣΤΙΑΣ","ΣΥΣΤΗΜΑΤΑ ΠΑΡΑΚΟΛΟΥΘΗΣΗΣ","Φασματική ανάλυση","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/1529","http://hdl.handle.net/10442/hedi/1529"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE PURPOSE OF THIS WORK IS FOR STUDYING BY MEANS OF DIAGNOSTIC METHODS THE BEHAVIOUR OF THE MATERIALS DURING THEIR STRAIN. THIS WORK CONSISTS OF TWO PARTS. THE FIRST PART IS RESEARCHING THE BEHAVIOUR OF THE MATERIALS IN STATIC CONDITIONS AND THE SECOND PART STUDIES THE RESULTS THAT HAVE THE DYNAMIC LOADING ON THE STRUCTURES AND ON THE MATERIALS GENERALLY. THE METHOD THAT IS USED FOR THE EXPERIMENTAL PROCEDURE IS THIS OF SPECTRUM ANALYSIS. NAMELY A PROPER MONITORING SYSTEM IS USED TO TAKE AND ANALYZE THE MEASUREMENTS AND THE EFFECTS USING MATHEMATICAL PROCESSES SUCH AS THE VASCHY-BUCKNIGHAM THEOREM ARE GUIDED TO USEFUL CONCLUSIONS. IN THE PRESENT WORK ARE TAKEN MEASUREMENTS OF BOTH SOUND AND VIBRATION AND THE RESULTS COMING FROM THE SOUND AND VIBRATION ARE SIMILAR. AT THE END AREBUILDED EQUATIONS THAT CAN DESCRIBE THE WHOLE PROCESS WITH SATISFACTORY PRECISION.","Ο ΣΚΟΠΟΣ ΑΥΤΗΣ ΤΗΣ ΕΡΓΑΣΙΑΣ ΕΙΝΑΙ ΝΑ ΜΕΛΕΤΗΣΕΙ ΜΕ ΤΗΝ ΒΟΗΘΕΙΑ ΔΙΑΓΝΩΣΤΙΚΩΝ ΜΕΘΟΔΩΝ ΤΗΝ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΚΑΤΑ ΤΗΝ ΚΑΤΑΠΟΝΗΣΗ ΤΟΥΣ. Η ΕΡΓΑΣΙΑ ΠΕΡΙΛΑΜΒΑΝΕΙΔΥΟ ΜΕΡΗ. ΤΟ ΠΡΩΤΟ ΜΕΡΟΣ ΕΞΕΤΑΖΕΙ ΤΗΝ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΣΕ ΣΤΑΤΙΚΕΣ ΣΥΝΘΗΚΕΣ ΚΑΙ ΤΟ ΔΕΥΤΕΡΟ ΜΕΛΕΤΑ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΦΟΡΤΙΣΕΩΝ ΠΑΝΩ ΣΤΙΣ ΚΑΤΑΣΚΕΥΕΣ ΚΑΙ ΤΑ ΥΛΙΚΑ. Η ΜΕΘΟΔΟΣ ΠΟΥ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ ΚΑΤΑ ΤΗΝ ΠΕΙΡΑΜΑΤΙΚΗ ΔΙΑΔΙΚΑΣΙΑ ΗΤΑΝ ΑΥΤΗ ΤΗΣ ΦΑΣΜΑΤΙΚΗΣ ΑΝΑΛΥΣΗΣ. ΣΥΓΚΕΚΡΙΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ ΕΝΑ ΚΑΤΑΛΛΗΛΟ ΣΥΣΤΗΜΑ ΠΑΡΑΚΟΛΟΥΘΗΣΗΣ ΓΙΑ ΤΗΝ ΛΗΨΗ ΚΑΙ ΑΝΑΛΥΣΗ ΤΩΝ ΜΕΤΡΗΣΕΩΝ ΚΑΙ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΧΡΗΣΙΜΟΠΟΙΩΝΤΑΣ ΜΑΘΗΜΑΤΙΚΗ ΕΠΕΞΕΡΓΑΣΙΑ ΟΠΩΣ Η ΘΕΩΡΙΑ ΤΗΣ ΟΜΟΙΟΤΗΤΑΣ, ΟΔΗΓΗΣΑΝ ΣΕ ΧΡΗΣΙΜΑ ΣΥΜΠΕΡΑΣΜΑΤΑ. ΣΤΗΝ ΠΑΡΟΥΣΑ ΕΡΓΑΣΙΑ ΕΛΗΦΘΗΣΑΝ ΜΕΤΡΗΣΕΙΣ ΚΑΙ ΘΟΡΥΒΟΥ ΚΑΙ ΤΑΛΑΝΤΩΣΕΩΝ ΚΑΙ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΗΣΑΝ ΠΑΡΟΜΟΙΑ. ΤΕΛΟΣ ΚΑΤΑΣΚΕΥΑΣΘΗΣΑΝ ΕΞΙΣΩΣΕΙΣ ΠΟΥ ΠΕΡΙΕΓΡΑΦΑΝ ΤΗΝ ΟΛΗ ΔΙΑΔΙΚΑΣΙΑ ΜΕ ΙΚΑΝΟΠΟΙΗΤΙΚΗ ΠΡΟΣΕΓΓΙΣΗ."]},{"key":"dc:title","label":"Title","values":["ΕΡΕΥΝΑ ΕΠΙ ΤΗΣ ΔΙΑΓΝΩΣΤΙΚΗΣ ΑΞΙΟΠΙΣΤΙΑΣ ΤΩΝ ΣΥΣΤΗΜΑΤΩΝ","RESEARCHING THE DIAGNOSTIC RELIABILITY OF THE SYSTEMS"]}]}],"canonical_facts":{"dc:creator":["Ρογδάκης, Εμμανουήλ"],"dc:date":["1990"],"dc:description":["THE PURPOSE OF THIS WORK IS FOR STUDYING BY MEANS OF DIAGNOSTIC METHODS THE BEHAVIOUR OF THE MATERIALS DURING THEIR STRAIN. THIS WORK CONSISTS OF TWO PARTS. THE FIRST PART IS RESEARCHING THE BEHAVIOUR OF THE MATERIALS IN STATIC CONDITIONS AND THE SECOND PART STUDIES THE RESULTS THAT HAVE THE DYNAMIC LOADING ON THE STRUCTURES AND ON THE MATERIALS GENERALLY. THE METHOD THAT IS USED FOR THE EXPERIMENTAL PROCEDURE IS THIS OF SPECTRUM ANALYSIS. NAMELY A PROPER MONITORING SYSTEM IS USED TO TAKE AND ANALYZE THE MEASUREMENTS AND THE EFFECTS USING MATHEMATICAL PROCESSES SUCH AS THE VASCHY-BUCKNIGHAM THEOREM ARE GUIDED TO USEFUL CONCLUSIONS. IN THE PRESENT WORK ARE TAKEN MEASUREMENTS OF BOTH SOUND AND VIBRATION AND THE RESULTS COMING FROM THE SOUND AND VIBRATION ARE SIMILAR. AT THE END AREBUILDED EQUATIONS THAT CAN DESCRIBE THE WHOLE PROCESS WITH SATISFACTORY PRECISION.","Ο ΣΚΟΠΟΣ ΑΥΤΗΣ ΤΗΣ ΕΡΓΑΣΙΑΣ ΕΙΝΑΙ ΝΑ ΜΕΛΕΤΗΣΕΙ ΜΕ ΤΗΝ ΒΟΗΘΕΙΑ ΔΙΑΓΝΩΣΤΙΚΩΝ ΜΕΘΟΔΩΝ ΤΗΝ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΚΑΤΑ ΤΗΝ ΚΑΤΑΠΟΝΗΣΗ ΤΟΥΣ. Η ΕΡΓΑΣΙΑ ΠΕΡΙΛΑΜΒΑΝΕΙΔΥΟ ΜΕΡΗ. ΤΟ ΠΡΩΤΟ ΜΕΡΟΣ ΕΞΕΤΑΖΕΙ ΤΗΝ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΣΕ ΣΤΑΤΙΚΕΣ ΣΥΝΘΗΚΕΣ ΚΑΙ ΤΟ ΔΕΥΤΕΡΟ ΜΕΛΕΤΑ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΦΟΡΤΙΣΕΩΝ ΠΑΝΩ ΣΤΙΣ ΚΑΤΑΣΚΕΥΕΣ ΚΑΙ ΤΑ ΥΛΙΚΑ. Η ΜΕΘΟΔΟΣ ΠΟΥ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ ΚΑΤΑ ΤΗΝ ΠΕΙΡΑΜΑΤΙΚΗ ΔΙΑΔΙΚΑΣΙΑ ΗΤΑΝ ΑΥΤΗ ΤΗΣ ΦΑΣΜΑΤΙΚΗΣ ΑΝΑΛΥΣΗΣ. ΣΥΓΚΕΚΡΙΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΕ ΕΝΑ ΚΑΤΑΛΛΗΛΟ ΣΥΣΤΗΜΑ ΠΑΡΑΚΟΛΟΥΘΗΣΗΣ ΓΙΑ ΤΗΝ ΛΗΨΗ ΚΑΙ ΑΝΑΛΥΣΗ ΤΩΝ ΜΕΤΡΗΣΕΩΝ ΚΑΙ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΧΡΗΣΙΜΟΠΟΙΩΝΤΑΣ ΜΑΘΗΜΑΤΙΚΗ ΕΠΕΞΕΡΓΑΣΙΑ ΟΠΩΣ Η ΘΕΩΡΙΑ ΤΗΣ ΟΜΟΙΟΤΗΤΑΣ, ΟΔΗΓΗΣΑΝ ΣΕ ΧΡΗΣΙΜΑ ΣΥΜΠΕΡΑΣΜΑΤΑ. ΣΤΗΝ ΠΑΡΟΥΣΑ ΕΡΓΑΣΙΑ ΕΛΗΦΘΗΣΑΝ ΜΕΤΡΗΣΕΙΣ ΚΑΙ ΘΟΡΥΒΟΥ ΚΑΙ ΤΑΛΑΝΤΩΣΕΩΝ ΚΑΙ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΗΣΑΝ ΠΑΡΟΜΟΙΑ. ΤΕΛΟΣ ΚΑΤΑΣΚΕΥΑΣΘΗΣΑΝ ΕΞΙΣΩΣΕΙΣ ΠΟΥ ΠΕΡΙΕΓΡΑΦΑΝ ΤΗΝ ΟΛΗ ΔΙΑΔΙΚΑΣΙΑ ΜΕ ΙΚΑΝΟΠΟΙΗΤΙΚΗ ΠΡΟΣΕΓΓΙΣΗ."],"dc:identifier":["10.12681/eadd/1529","http://hdl.handle.net/10442/hedi/1529"],"dc:language":["gre"],"dc:publisher":["Πανεπιστήμιο Πατρών","University of Patras"],"dc:subject":["DIAGNOSTIC RELIABILITY OF THE SYSTEM","FINDING THE OPTIMAL MODEL","FREE AND FORCED VIBRATIONS","Modal analysis","MODELLING OF THE PROBLEM","Monitoring systems","RELIABILITY FACTOR","Spectrum analysis","STUDY OF VIBRATION AND NOISE","THEORY AND SIMILARITY MONOMIALS","ΑΝΑΛΥΣΗ ΜΟΡΦΩΝ","ΔΙΑΓΝΩΣΤΙΚΗ ΑΞΙΟΠΙΣΤΙΑ ΤΟΥ ΣΥΣΤΗΜΑΤΟΣ","ΕΛΕΥΘΕΡΕΣ ΚΑΙ ΕΞΑΝΑΓΚΑΣΜΕΝΕΣ ΤΑΛΑΝΤΩΣΕΙΣ","ΘΕΩΡΙΑ ΚΑΙ ΜΟΝΩΝΥΜΑ ΟΜΟΙΟΤΗΤΑΣ","ΜΕΛΕΤΗ ΤΑΛΑΝΤΩΣΕΩΝ-ΘΟΡΥΒΟΥ","ΜΟΝΤΕΛΛΟΠΟΙΗΣΗ ΤΟΥ ΠΡΟΒΛΗΜΑΤΟΣ","ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΒΕΛΤΙΣΤΟΥ ΜΟΝΤΕΛΛΟΥ","ΣΥΝΤΕΛΕΣΤΗΣ ΑΞΙΟΠΙΣΤΙΑΣ","ΣΥΣΤΗΜΑΤΑ ΠΑΡΑΚΟΛΟΥΘΗΣΗΣ","Φασματική ανάλυση","Engineering and Technology","Mechanical Engineering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού"],"dc:title":["ΕΡΕΥΝΑ ΕΠΙ ΤΗΣ ΔΙΑΓΝΩΣΤΙΚΗΣ ΑΞΙΟΠΙΣΤΙΑΣ ΤΩΝ ΣΥΣΤΗΜΑΤΩΝ","RESEARCHING THE DIAGNOSTIC RELIABILITY OF THE SYSTEMS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:59Z"}