WIT Press


Improved Dynamic Substructuring On Distributed Memory MIMD-computers

Price

Free (open access)

Paper DOI

10.2495/ASE930241

Volume

3

Pages

14

Published

1993

Size

1,146 kb

Author(s)

K. Rothe & H. Voss

Abstract

Improved dynamic substructuring on distributed memory MIMD-computers K. Rothe, H. Voss Institute for Applied Mathematics, University of Hamburg, Hamburg, Germany ABSTRACT For solving the eigenvalue problem of a structural system having a large number of degrees of freedom the authors introduced in [6] the improved condensation method using the Rayleigh functional of the exactly condensed nonlinear eigenvalue problem. In this paper we discuss the implementation of the method for substructured problems on a distributed memory MIMD computer. Examples are presented which demonstrate the efficiency of the method at least if the number of substructures is not too large. INTRODUCTION In the dynamic analysis of structures using the finite element method very large eigenvalue problems arise, and condensation is often employed to re- duce the number of degrees of freedom to manageable size. To this end Guyan [2] and Irons [3] introduced a method which is called static conden- sation no

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