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

Table 1

Standard block inertia parameters.

		FEM	Proposed method	Error (%)
Mass (kg)	m	161.2	163.3	−1.28
Centre of gravity (mm)	xc	147.0	144.4	1.74
	yc	152.3	152.3	0.03
	zc	112.9	112.7	0.15
Moment of inertia (kgm^2)	Jx	7.77	7.87	−1.31
	Jy	7.74	7.82	−0.99
	Jz	9.90	10.02	−1.22
Product (kgm^2)	Jxy	3.66	3.64	0.44
	Jxz	2.76	2.79	−1.11
	Jyz	2.43	2.41	0.59