Research on Vibration Fatigue Damage Locations of Offshore Oil and Gas Pipelines Based on the GA-Improved BP Neural Network

Table 9

Vibration test BP neural network location results.

Model no.	Damage condition	Actual position (mm)	Identification results (MM)	Absolute error (mm)	Relative error (%)
2	At the elbow of the pipe	1020	1308.72	288.72	4.86
3	Mass block pipe connection	2240	2856.29	616.29	10.38
4	Vertical elbow joint	5240	4606.99	633.01	10.66