Spectrum Analysis of a Coaxial Dual-Rotor System with Coupling Misalignment

Table 1

Node location.

Node	Position (m)	Remark
1	0.000	Bearing 1
2	0.043
3	0.083	Disk 1
4	0.123
5	0.164	Disk 2
6	0.204
7	0.260	Bearing 2
8	0.380
9	0.500
10	0.620
11	0.740
12	0.860	Bearing 5
13	0.925	Disk 3
14	0.965
15	1.010	Bearing 3
16	1.098
17	0.415
18	0.440	Bearing 4
19	0.490
20	0.548	Disk 4
21	0.636
22	0.724	Disk 5
23	0.792
24	0.860	Bearing 5
25	0.885