Identification of Engine Inertia Parameters and System Dynamic Stiffness via In Situ Method

Table 10

Identified inertia parameters of the engine plate.

Inertia parameters		Engine plate	Engine	Differences
Mass (kg)	m	126.2	110.8	15.4
Centre of gravity (mm)	xc	22.4	19.5	2.9
	yc	180.2	208.1	−27.9
	zc	98.1	134.2	−36.1
Moment of inertia (kgm^2)	Jx	11.46	11.56	−0.1
	Jy	6.57	5.61	0.96
	Jz	7.97	8.01	−0.04
Product (kgm^2)	Jxy	0.97	0.34	0.63
	Jxz	3.08	3.36	−0.28
	Jyz	0.46	0.26	0.2