Rubin's CMS reduction method for general state-space models

Abstract In this paper the Rubin CMS procedure for the reduction and successive coupling of undamped structural subsystems with symmetric system matrices will be modified for the case of general damping. The final coordinate transformation is based on the use of complex (residual) flexibility modes, state-space rigid body modes and complex free-free dynamic modes. The dynamic modes are selected using a specific eigenvalue selection criterion. Some examples will be presented and discussed showing the potential of this extension of the Rubin CMS-procedure.