Intelligent Diagnosis of Bogie Traction Seat Based on PCA-OVO and SVM Optimized by Modified Arithmetic Optimization Algorithm

Table 7

Modal center frequencies correspond to different K values.

K	Center frequency (Hz)
2	59	173	—	—	—	—
3	59	173	407	—	—	—
4	58	116	174	408	—	—
5	58	116	174	290	408	—
6	58	116	174	229	348	408