Application of Improved Dynamic Substructure Finite Element Model-Based State-Space Techniques in Mistuned Blisks

Table 2

Computational time and saving ratio of three methods.

First orders	HFFEMM	CDSFEMM		IDSFEM-SST
	(min)	(min)	(%)	(min)	(%)
10	20.66	15.89	23.09	14.31	30.74
20	35.67	28.97	18.78	28.87	19.06
30	52.93	40.24	23.98	40.73	23.04
40	60.74	47.97	21.02	46.83	22.90

is the computational time of different order frequencies; is the saving ratio of CDSFEMM and IDSFEM-SST relative to HFFEMM.