A Modified Transfer Matrix Method for Modal Analysis of Stepped Rotor Assembly Applied in the Turbomolecular Pump

<div>The variation of the error between TMM and FEM. (a) When the ratio of diameters of the step increases and (b) when the aspect ratio of the step increases.</div>

Shock and Vibration

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Figure 4

Figure 4: A Modified Transfer Matrix Method for Modal Analysis of Stepped Rotor Assembly Applied in the Turbomolecular Pump 