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

Table 13

GA BP neural network location results of the vibration test.

Model no.	Damage condition	Actual position (mm)	Identification results (mm)	Absolute error (mm)	Relative error (%)
2	At the elbow of the pipe	1020	1085.86	65.86	1.11
3	Mass block pipe connection	2240	2293.39	53.39	0.90
4	Vertical elbow joint	5240	5084.88	155.12	2.61