1971-02-01

Upward Cutting Vibratory Plowing 710729

Upward-cutting vibratory plowing has been studied experimentally and analytically to determine the effects of blade shape, blade roughness, actuator frequency, and carriage velocity on instantaneous and average plowing forces.
A lumped-parameter model was developed to simulate upward-cutting vibratory plowing. The model parameters consist of a mass, spring, Coulomb friction, viscous damping, and a parameter to account for upward cutting with different blades. Predicted and measured instantaneous and average forces were found to agree well.
The results of the study showed that a raked, wedge-shaped blade with machined grooves reduced the average horizontal plowing force by 98-99%.

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