Experimental Study on Dry Friction Damping Characteristics of the Steam Turbine Blade Material with Nonconforming Contacts

Table 1

Experimental conditions.

Number	Material	Contact radius R/mm	Normal force /N	Exciting frequency /Hz
1	1Cr13	6	1.96, 2.94, and 4.90	22
2	1Cr13	18	1.96, 2.94, and 4.90	22
3	1Cr13	36	1.96, 2.94, and 4.90	82