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

Table 1

Distribution of nondeterministic variables of tuned blisk.

Nondeterministic variables	Parameter 1	Parameter 2	Distribution pattern
/rad·s^−1	1046	31.38	Normal distribution
/°C	1050	31.50	Normal distribution
/×10^−5/°C^−1	1.216	0.03648	Normal distribution
/W·(m·°C)^−1	27.21	0.8163	Normal distribution
/mm	3.0	0.09	Normal distribution
/×10^11/Pa	1.75	1.94	Interval variable
pr	0.2915	0.3325	Interval variable
den/kg·m^−3	8090	9005	Interval variable

Note. In the normal distribution, parameter 1 and parameter 2 represent the mean and the standard deviation of a random variable. In the interval variable, parameter 1 and parameter 2 represent the lower bound and upper bound. (The meaning in Table 3 is the same as in Table 1.)