Construction of Stiffness and Flexibility for Substructure-Based Model Updating

Table 2

Computation time for substructure-based model updating.

	With the proposed well-conditioned eigenequation	With Moore-Penrose pseudo-inverse for rank-deficient matrix	With a small shift for rank-deficient matrix
Calculation of substructural eigensolution (seconds)	4.1590	16.6342	4.1433
Calculation of substructural eigensensitivity (seconds)	655.59	1683.21	642.77
One iteration of model updating (hours)	0.3103	0.7328	0.3087
Entire time of substructure-based model updating (hours)	3.8	11.5	5.9