Dynamic Condensation

Zu-Qing Qu ()
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Zu-Qing Qu: University of Arkansas, Department of Civil Engineering

Chapter 5 in Model Order Reduction Techniques, 2004, pp 71-109 from Springer

Abstract: Abstract The static condensation technique has been described extensively in the preceding chapter. Because the inertia effects are ignored in this condensation, the accuracy of the resulting reduced model is generally very low for dynamic problems. To achieve reasonably accurate results, the masters must be chosen with great care and the number of masters should be greater than the number of modes interested. To alleviate the limitations, the inertia effects could be partially or fully included in the condensation. The corresponding condensation approaches are generally called dynamic condensation. In this chapter, exact condensation, classical dynamic condensation, high-order Guyan condensation, dynamic substructuring scheme, and modal-type condensation will be provided.

Keywords: Mode Shape; Mass Matrice; Modal Reduction; Approximate Eigenvalue; Dynamic Stiffness Matrix (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1007/978-1-4471-3827-3_5

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