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

Table 6

Simulation of pipeline crack conditions.

Crack conditions	Noise (%)	Sample size
Main pipe	0	55
Main pipe	5	110
Pipe with mass block	0	10
Pipe with mass block	5	20
Simply supported pipe	0	10
Simply supported pipe	5	20
Vertical bent pipe	0	21
Vertical bent pipe	5	42
Total	—	288