Analysis and Research on Longitudinal Vibration Characteristics of Deep Sea Mining Pipe Based on Finite Element Method

Table 1

The mining pipe subsystem related parameters.

Ladder section	1	2	3	4
L (m)	1 000	1 000	1 500	1 500
D2 (m)	0.18	0.16	0.14	0.12
D1 (m)	0.10	0.10	0.10	0.10
mh (kg/m)	137.1	95.1	58.4	26.9
Ah (m^2)	0.0176	0.0122	0.0075	0.0035
E (GPa)	210	210	210	210
G (GPa)	84	84	84	84