Dynamic Characteristics and Experimental Research of a Two-Span Rotor-Bearing System with Rub-Impact Fault

Table 2

Main parameters of the two-span rotor-bearing system.

Component name	Value	Unit
DC motor	0–10000	rad/min
Sliding bearing	24 × 30 (diameter × length)	mm
Graphite bearing	21 × 14 (diameter × length)	mm
Long shaft	10 × 500 (diameter × length)	mm
Short shaft	10 × 400 (diameter × length)	mm
Large disk	80 × 16 (diameter × length)	mm
Small disk	80 × 20 (diameter × length)	mm
Flexible coupling	24 × 30 (diameter × length)	mm
Sampling frequency	4000	Hz
Lubrication oil	30