ΔΥΝΑΤΟΤΗΤΕΣ ΕΦΑΡΜΟΓΗΣ ΤΗΣ ΜΕΘΟΔΟΥ ΤΩΝ ΣΥΝΟΡΙΑΚΩΝ ΣΤΟΙΧΕΙΩΝ ΣΤΗΝ ΑΝΑΛΥΣΗ ΜΗΧΑΝΟΛΟΓΙΚΩΝ ΚΑΤΑΣΚΕΥΩΝ

IT IS PRESENTED A COMPLETE LITERATURE OF THE BOUNDARY INTEGRAL METHODS IN LAST 100 YEARS. INVESTIGATIONS OF THE BEM-FORMULATION IN ACOUSTICS, ON THE BASE OF THE WEIGHTED GALERKIN, ARE PRESENTED . IT IS PROVED, THAT THE BREBBIA-NARDINI METHODOLOGY, IN ELASTODYNAMICS AND ACOUSTICS, HAS MANY SHORTCOMINGS IF IT IS NOT POISSON-ADJUSTED. ON THE CONTRARY, THE PROPOSED CONSISTENT-MASS- FORMULATION INCLUDING INTERNAL DOF, WORKS EXTREMELY WELL. ALSO, IT IS PROPOSED A SYMMETRIZATION PROCEDURE OF THE BEM-FORMULATION WHICH IS ESPECIALLY IMPORTANT IN THE DYNAMIC ANALYSIS OF STRUCTURES. FINALLY, IT IS PRESENTED A NEW COMPLETE COMPUTER CODE("BESSY") BASED ON THE DIRECT BEM-FORMULATION, WRITTEN IN PASCAL, WHICH IS WORKING IN PCS (IBM-COMPATIBLES). THIS CODE IS CAPABLE OF SOLVING INTERNAL AND EXTERNAL POTENTIAL AND ELASTODYNAMIC PROBLEMS.

Grantor dc:publisher

Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

Year dc:date

1987

Author dc:creator

• Προβατίδης, Χριστόφορος

• Acoustics
• Boundary element method
• DYNAMIC ANALYSIS OF STRUCTURES
• Elastodynamics
• Ακουστική
• ΑΝΑΛΥΣΗ ΜΗΧΑΝΟΛΟΓΙΚΩΝ ΚΑΤΑΣΚΕΥΩΝ
• Ελαστοδυναμική
• Μέθοδος συνοριακών στοιχείων
• Engineering and Technology
• Mechanical Engineering
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Μηχανολόγου Μηχανικού

Language dc:language

gre

Identifier

10.12681/eadd/0616

OAI identifier oai:identifier

oai:10442/0616