30
Table 2- 4- Experimental results: Forces are average of 4 different
tests for each set of
angles
Tilt
Angle
(Degrees)
Disc
Angle
(Degrees
)
Vertical
Force
(N)
Lateral
Force
(N)
Draft
(N)
0
0
110
2.00
72.0
7
123
215
108
14
118
231
148
21
132
555
176
28
135
1180
230
15
0
102
25.0
83.0
7
65.0
265
122
14
52.0
432
143
21
54.0
760
151
28
60.0
534
176
20
0
93.0
24.0
85.0
7
110
193
116
14
93.0
810
132
21
90.0
630
143
28
102
432
148
25
0
89.0
32.0
102
7
84.0
760
97.0
14
112
537
106
21
110
440
130
28
97.0
463
121
2-5-1- Draft force:
For the purpose of the design of the planter and energy consumption, we can tell that
draft force is the most important parameter during the motion of disc. Figure 2-8, 2-9, 2-10 and
2-11 show the draft force of the disc with the tilt angle of 0, 15, 20 and 25 degrees, respectively,
for different disc angles. Also Figure 2-12 shows all of them together for a comparative analysis.
31
Figure 2- 8- Draft force on the disc coulter
for different disc angles, tilt angle=0
Figure 2- 9- Draft force on the disc coulter for different disc angles, tilt angle=15
Figure 2- 10- Draft force on the disc coulter
for different disc angles, tilt angle=20
0
50
100
150
200
250
0
7
14
21
28
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