Research on Cab Vibration Control Based on Parameter Hierarchical Interaction Model

Table 2

Modal frequency between simulation and theoretical calculation.

Mode direction	Theoretical calculation frequency (Hz)	Simulation frequency (Hz)
Pitch direction of front suspension of cab	2.3	1.3
Pitch direction of rear suspension of cab	2.5	1.8
The up and down direction of the seat	2.5	2.3
The up and down direction of the rear axle	2.7	2.7