Interactions in Soil-lug System (Part 2)

Effect of Lug Angle on Soil Reaction

Abstract

As a serial study on soil-lug system interactions, effect of lug angle on soil reaction was experimentally studied and the following results are obtained. When lug angle becomes large, the average lift by lug also increases but the average thrust decreases except for the case of 13.8% wheel slippage, as for which case clear effect of lug angle cannot be identified. Wheel thrust efficiency tends to increase with the decrement of lug angle and clear tendency on effect of lug angle is found at 28.8% wheel slippage. The value of the efficiency for the case of small lug angle becomes maximum when the wheel slippage condition is 28.8%. But strong effect of variation in slippage condition cannot be seen for the case of large lug angle.