Research Article
Modeling and Simulation of Theoretical Digging Force of an Excavator Based on Arbitrary Posture
Table 1
Comparison between measured values and theoretical values of maximum theoretical digging force.
| | Maximum digging force | Engine rotation speed/rpm | Length of hydraulic cylinder of bucket/mm | Length of hydraulic cylinder of bucket rod/mm | 1st test value/KN | 2nd test value/KN | 3rd test value/KN | Average/KN | Calculate value/KN | Error rate (%) |
| | Maximum digging force of bucket | 2060 | 1698 | -- | 68.5 | 68.2 | 69.1 | 68.6 | 73.144 | 6.60 | | Maximum digging force of bucket rod | 2060 | 2155 | 2132 | 56.1 | 56.6 | 56.4 | 55.2 | 59.699 | 8.20 |
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