Effects of Stem Cutting in Rice Harvesting by Combine Harvester Front Header Vibration

Table 3

Mode vibration frequency of various parts of front header.

Mode frequency order	Pentagon reel simulation frequency (Hz)	Combine auger simulation frequency (Hz)	Header platform simulation frequency (Hz)	Conveying aisle simulation frequency (Hz)	Simulation frequency of assembly front header (Hz)	Test modal frequency of assembly front header (Hz)
1	20.65	4.96	5.09	8.78	5.28	23.38
2	29.31	5.15	5.13	9.54	5.64	48.98
3	29.81	6.89	12.59	11.42	20.28	56.45
4	35.86	8.34	13.41	13.74	29.77	78.92
5	38.13	14.36	32.27	15.50	32.36	94.64
6	38.18	26.28	33.38	21.12	33.85	110.75
7	39.99	32.18	45.67	21.55	44.21	144.12
8	49.18	63.28	48.55	29.56	46.42	185.02