Model Reduction of the Flexible Rotating Crankshaft of a Motorcycle Engine Cranktrain

Table 1

RMS values of the relative percentage deviations with respect to Model A.

	RMS [%]
	Model B	Model C	Model D	Model E
Central Main Bearing 1	0.1	5.0	4.1	4.1
Central Main Bearing 2	0.1	18.1	6.4	6.2
External Main Bearing 1	0.6	31.5	41.6	34.3
External Main Bearing 2	0.6	519.0	85.0	57.9
Conrod 1 big end	0.1	3.9	3.9	3.9
Conrod 2 big end	0.1	3.9	3.9	3.9
Conrod 1 small end	0.1	2.1	2.1	2.1
Conrod 2 small end	0.1	2.1	2.1	2.1