The Delft Sand, Clay & Rock Cutting Model, 2019a

The Delft Sand, Clay & Rock Cutting Model.
The Horizontal Cutting Force Coefficient λ HF vs. The Blade Angle α
10
9
Horizontal Cutting Force Coefficient λ HF (-)
8
7
6
5
4
3
2
r=2.00
r=1.00
r=0.50
r=0.25
r=0.10
r=0.00
1
0
15 25 35 45 55 65 75 85 95 105 115 125 135 145 155 165 175
Blade angle α (Degrees)
© S.A.M.
Figure V-3: The horizontal cutting force coefficient λHF as a function of
the blade angle α and the ac ratio r.
Horizontal Cutting Force F h (kN), c=400 kPa, h i =0.1 m, w=1 m
© S.A.M.
400
350
300
250
200
150
100
50
0
The Horizontal Cutting Force F h vs. The Blade Angle α
15 25 35 45 55 65 75 85 95 105 115 125 135 145 155 165 175
Blade angle α (Degrees)
Figure V-4: The horizontal cutting force as a function of the blade angle α and
the ac ratio r (c=400 kPa).
r=2.00
r=1.00
r=0.50
r=0.25
r=0.10
r=0.00
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