Dynamic Characteristics Study with Multidegree-of-Freedom Coupling in TBM Cutterhead System Based on Complex Factors

Table 2

Distribution statistics of the cutterhead joint surface loads.

	Joint surface loads		External excitations
	Mean/kN	Standard deviation/kN	Mean/kN	Standard deviation/kN
Tangential	−139.69	93.25	139.66	7.40
Normal	−106.27	130.03	106.32	11.04
Axial	1410.55	915.48	1410.55	60.00