Flexibility-based structural component mode synthesis: its history, promise, and future potential

Abstract

A review of recent developments in flexibility-based component mode synthesis (F-CMS) methods is presented. It is shown that F-CMS methods rely on the partitioned solution methods (e.g., FETI-based algorithms) such that both the implementation overhead and solution methods are competitive with respect to the stiffness-based Craig-Bampton method. Accuracy of the F-CMS methods are shown to be superior to existing S-CMS methods, with an associated mode selection capability inherent with the F-CMS methods. To date, no such mode selection method is available for the Craig-Bampton method.