ΣΥΜΒΟΛΗ ΣΤΗΝ ΑΝΑΛΥΣΗ ΚΑΙ ΣΤΟΝ ΥΠΟΛΟΓΙΣΜΟ ΑΚΟΥΣΤΙΚΟΕΛΑΣΤΙΚΩΝ ΦΑΙΝΟΜΕΝΩΝ

THE ACOUSTOELASTIC PHENOMENA ARE A CLASS OF FLUID-STRUCTURE INTERACTION PHENOMENA, WITH SPECIAL IMPORTANCE TO THE OVERALL SPECTRUM OF THE ABOVE PHENOMENA. THIS FACT IS DEVELOPED EXTENSIVELY IN PART 1 OF THE THESIS, WHERE A REVIEW IS ATTEMPTED OF ALL THE PHYSICAL FLUID-STRUCTURE INTERACTION PHENOMENA, THEIR TECHNOLOGICAL IMPORTANCE AND THE METHODS USED FOR THEIR ANALYSIS AND SOLUTION. ALTHOUGHA PROGRESS CAN BE OBSERVED AT THIS POINT, SIGNIFICANT PROBLEMS REMAIN, DUE MAINLY TO THE FACT, THAT AN ADEQUATE PHYSICAL AND SEMANTIC FRAMEWORK IS MISSING FOR THE ANALYSIS OF THE COUPLED SYSTEM. THUS, IN PART 2, THE GENERAL COUPLED ACOUSTOELASTIC SYSTEM IS EXAMINED FROM THE ENERGY POINT OF VIEW, DEVELOPING SUITABLE ORIGINAL VARIATIONAL PRINCIPLES. IN PART 3, THESE VARIATIONAL PRINCIPLES ARE DISCRETIZED USING THE FINITE ELEMENT METHOD, PRODUCING ALGEBRAIC SYSTEMS SUITABLE FOR PROCESSING WITH A COMPUTER. IN PART 4 THE DEVELOPMENT OF THE ACE ANALYSIS SYSTEM IS ANALYSED, BASED ON THE PREVIOUS ALGEBRAIC SYSTEMS. COMPARISONS TO ANALYTICAL, NUMERICAL AND EXPERIMENTAL RESULTS, VERIFY THE ABILITY OF THE SYSTEMTO SOLVE A BROAD SPECTRUM OF ACTUAL ENGINEERING PROBLEMS. FINALLY, PROCEEDING FURTHER IN PART 5, METHODS FOR THE DECOUPLING OF THE COUPLED ACOUSTOELASTIC SYSTEM ARE DEVELOPED. THEY MINIMIZE THE COMPUTATIONAL PROBLEMS AND ALLOW THE ANALYSIS, USING ANY "TYPICAL" COMPUTER ANALYSIS SYSTEM AS A BLACK BOX.

Grantor dc:publisher

Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

Year dc:date

1987

Authors dc:creator

• Antoniadis, Ioannis
• Αντωνιάδης, Ιωάννης

• ACOUSTIC PHENOMENA
• ACOUSTOELASTICITY
• Computational methods
• Elasticity
• Finite elements
• MODAL METHODS
• Numerical methods
• Structural analysis
• VARIATIONAL PRINCIPLES
• ΑΚΟΥΣΤΙΚΑ ΦΑΙΝΟΜΕΝΑ
• ΑΚΟΥΣΤΙΚΟΕΛΑΣΤΙΚΟΤΗΤΑ
• Αριθμητικές μέθοδοι
• Δυναμική κατασκευών
• Ελαστικότητα
• ΘΕΩΡΗΜΑΤΑ ΜΕΤΑΒΟΛΗΣ
• ΙΔΙΟΑΝΥΣΜΑΤΙΚΕΣ ΜΕΘΟΔΟΙ
• Υπολογιστικές μέθοδοι
• Engineering and Technology
• Mechanical Engineering
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Μηχανολόγου Μηχανικού

Language dc:language

gre

Identifier

10.12681/eadd/0614

OAI identifier oai:identifier

oai:10442/0614