Shock and Vibration

Research Article

Mechanism Study and Reduction of Minivan Interior Booming Noise during Acceleration

Table 5

Lumped parameters of minivan drivetrain.


No.	Component name	Inertia (kg·mm²)	No.	Component name	Stiffness (Nm/rad)

J₁	Engine free end	141	K₁	Engine free end	20883
J₂	Crankshaft first quarter	5386	K₂	Crankshaft first quarter	99891
J₃	Crankshaft second quarter	5512	K₃	Crankshaft second quarter	99891
J₄	Crankshaft third quarter	5512	K₄	Crankshaft third quarter	99891
J₅	Crankshaft fourth quarter	5421	K₅	Crankshaft fourth quarter	45363
J₆	Flywheel	70800	K₆	—	Rigid
J₇	Clutch drive end	20400	K₇	Clutch	344/2092
J₈	Clutch driven end	1130	K₈	—	Rigid
J₉	Gearbox input shaft	199	K₉	Gearbox input shaft	3155
J₁₀	Gearbox other	5076	K₁₀	Gearbox other	8574
J₁₁	Prop-shaft input part	966	K₁₁	Prop-shaft input part	32137
J₁₂	Prop-shaft first shaft	4334	K₁₂	Prop-shaft first shaft	58609
J₁₃	Prop-shaft second shaft	5632	K₁₃	Prop-shaft second shaft	27125
J₁₄	Rear axle input shaft	501	K₁₄	Rear axle input shaft	564
J₁₅	Differential	580	K₁₅	—	Rigid
J₁₆	Right axle shaft	3610	K₁₆	Right axle shaft	12992
J₁₇	Right wheel	430006	K₁₇	Right wheel	12447
J₁₈	1/2 vehicle body	58334153	—
J₁₉	Left axle shaft	3654	K₁₈	Left axle shaft	11827
J₂₀	Left wheel	430006	K₁₉	Left wheel	12447
J₂₁	1/2 vehicle body	58334153	—


No.	Component name	Damping (Nm s/rad)

C₁	Clutch damping	200
C₂	Right wheel damping	200000
C₃	Left wheel damping	200000