Determination of Contact Stiffness and Damping of a Tie-Bolt Rotor with Interference Fits Using Model Updating with Thin-Layer Elements

Table 1

Experimental modal testing with different preloads.

Modal tests	Torque (Nm) (M16)	Torque (Nm) (M20)
Case 1	10–90	110
Case 2	90	10–110