A Study on Dynamic Behaviour of Thermally Distributed Exponentially Graded Rotor System with Induced Porosities

Figure 6

Campbell diagrams of an exponential law-based FG rotor-bearing system for (a) α = 0 at ΔT = 0 K; (b) α = 0.2 at ΔT = 0 K; (c) α = 0 at ΔT = 300 K; (d) α = 0.2 at ΔT = 300 K; (e) α = 0 at ΔT = 900 K; and (f) α = 0.2 at ΔT = 900 K.

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