Tel Aviv University
  School of Mathematical Sciences
    Applied Mathematics Seminar
 
Date:          Tuesday February 22nd, 2011, 15:10
Place:             Schreiber Bldg, Room 309
 
Speaker:     Dan Givoli
  	    The Technion
 
Title: Optimal Model Reduction of Dynamic Subsystems - Recent Advances
 
Abstract:
 
When dealing with the computational solution of large linear dynamic
systems, one often wishes to approximate a given discrete model by
another model which involves a much smaller number of degrees of
freedom. There is a very large volume of literature on the subject,
often called "model order reduction." One of the oldest and most popular
model reduction methods, popular especially in structural dynamics, is
Standard Modal Reduction (SMR), which is based on the "low frequency
rule." According to this rule, reduction of the model is achieved by
retaining only the modes associated with low frequencies, while
discarding the modes associated with high frequencies. In this talk, the
subject will be briefly reviewed. Then the special problem of
substructure reduction will be considered. A new method, called Optimal
Modal Reduction (OMR) will be discussed, and recent extensions and some
numerical examples will be presented.
 
For information about future seminars, see
 <http://www.tau.ac.il/~adid/AM_seminar_2010-201/AM_seminar_2010-2011.html>
 
______________________________________________________________________
 
Dr. Adi Ditkowski                                                     |
Department of Applied Mathematics                                     |
School of Mathematical Sciences          phone:  972-3-640-5987       |
Tel Aviv University,                     fax  :  972-3-640-9357       |
Tel Aviv, 69978 Israel                   email:   <adid@post.tau.ac.il>  |
______________________________________________________________________
 
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Technion Math Net-2 (TECHMATH2)
Editor: Michael Cwikel   <techm@math.technion.ac.il> 
Announcement from: Adi Ditkowski   <adid@post.tau.ac.il>