Application of Probabilistic and Nonprobabilistic Hybrid Reliability Analysis Based on Dynamic Substructural Extremum Response Surface Decoupling Method for a Blisk of the Aeroengine

Table 4

Analysis results of modal and vibration response of P-NP-HRA-DS-ERSDM for the mistuned blisk.

(a)

Random variable		Interval variable
	1129.3		8072.9
	943.2		7977.8
	29.14	× 10^11	1.931
	27.63	× 10^11	1.889
	0.297	—	—
	0.294
	2.827
× 10^−5	1.251
× 10^−5	1.339

(b)

Response	The maximum failure probability
—	MCM		MLNA				P-NP-HRA-DS-ERSDM
—	/%	/()	/%	/()	Er/%	/%	/%	/()	Er/%	/%	/%
	—	—	99.17	289.21	—	—	99.87	223.09	—	—	22.86
2611.8 HZ
dsum			99.37				99.31
20.943
strs(×10^13)			99.46				99.32
3.6745
str_e (×10^7)			98.89				99.24
372.84
	—	—	99.21	312.56	—	—	99.86	231.59	—	—	25.18
6.56