Vibration Response of the Crawler Combine Chassis Frame Excited by the Engine

Table 2

Combine test conditions.

Test conditions	Combine running status	Testing environment	Travel speed (km/h)
1	The whole machine is in the static and no-load state (only the engine is working and the accelerator is small)	Cement pavement	0
2	The whole machine is in the static and no-load state (parts working, small throttle)	Cement pavement	0
3	The whole machine is running (only engine working, large throttle)	Rice field	20
4	The whole machine is running (parts working, large throttle)	Rice field	20