Abstract
Two classical free-interface component mode synthesis (CMS) methods are briefly reviewed, and highlighted the sources of numerical instability. In addition, a modest modification to the classical free-interface CMS formulation by Craig and Chang which alleviates the numerical instability suffered by the original method is presented. To support the discussion, the numerical instability is demonstrated with a simple three-dimensional, two-component finite element model.
Original language | English |
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Pages (from-to) | 1621-1624 |
Number of pages | 4 |
Journal | AIAA journal |
Volume | 41 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2003 |