The Coupling Dynamic Analysis and Field Test of TBM Main System under Multipoint Impact Excitation

Table 2

The rain flow count statistics for each test point.

	The measured values		The calculated values		Error
	The mean of amplitude	MSE of the amplitude	The mean of amplitude	MSE of the amplitude	The mean of amplitude	MSE of the amplitude
Cutterhead’s axial acceleration	0.1323	0.1277	0.1610	0.1793	21.69%	40.41%
Cutterhead’s horizontal acceleration	0.3079	0.3026	0.3006	0.2701	2.3%	10.74%
Cutterhead’s vertical acceleration	0.2644	0.2518	0.2718	0.2696	2.80%	7.07%
Mid grider’s axial acceleration	0.0636	0.0633	0.0398	0.0419	37.42%	33.81%
Mid grider’s horizontal acceleration	0.0672	0.0698	0.0920	0.0756	36.90%	8.31%
Mid grider’s vertical acceleration	0.0350	0.0350	0.0347	0.0399	0.85%	14.00%
Cutterhead bearing’s axial acceleration	0.1895	0.1967	0.1363	0.1500	28.07%	23.74%
Support cylinder’s acceleration	0.0568	0.0578	0.0730	0.0688	28.52%	19.03%