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

Figure 10

Maximum modal strain energy amplitudes analysis in different rotational speeds and temperatures. (a) MMSEAs: tuned blisk: y1: ; y2: ; y3: , ; y7: ; y8: , ; y11: ; y12: , . Mistuned blisk: y4: ; y5: ; y6: , ; y9: ; y10: , ; y13: ; y14: , . (b) Deviations of MMSEAs: mistuned blisk relative to tuned blisk: m1: ; m2: ; m3: ; m4: ; m5: , ; m6: , ; m7: , .

(a) MMSEAs

(b) Deviation of MMSEAs