Modeling and Dynamic Analysis of Cutterhead Driving System in Tunnel Boring Machine

Table 3

Parameters of 3-stage planetary reducer in TBM.

Parameter	Sun			Planet			Ring			Carrier
	1st	2nd	3rd	1st	2nd	3rd	1st	2nd	3rd	1st	2nd	3rd
Mass m(kg)	3.69	9.55	14.06	2.37	5.78	14.06	17.76	30.06	42.98	18.32	32.1	47.35
I (kg⋅m^2)	0.004	0.019	0.332	0.002	0.007	0.032	0.132	0.39	0.88	0.145	0.56	1.86
Tooth number z	25	27	24	20	21	24	65	69	72	—	—	—
Module	,  ,
Tooth width b (m)	,  ,
Pressure angle	,
Mesh stiffness