Noise Source Identification of a Ring-Plate Cycloid Reducer Based on Coherence Analysis

Table 1

Test point location explanation.

Point name	Test point location
1	Vibration test point, near the input shaft, on the surface of the reducer
2	Vibration test point, near the cycloid gear, on the surface of the reducer
3	Vibration test point, near the output shaft, on the surface of the reducer
5	Noise test point, 1 meter above the reducer