Evaluation of the Soil Thrust on Continuous Tracks Considering Independent Soil Shearing by Grousers
Source abstract
Abstract
Soil thrust is a traction force of an off-road tracked vehicle. Existing soil thrust assessment methods assume that a continuous shear failure plane exists along the soil-track interface. However, recent experimental works revealed that the soil beneath the track is divided into soil blocks; each soil block is sheared independently. This study proposed a new total soil thrust assessment method based on the block-shaped failure mechanism, and the total soil thrust predicted by the proposed and the existing methods was compared. The results showed that the existing method showed a greater maximum soil thrust at a lower slip rate than the proposed method. When the soil exhibited a hardening behavior, the total soil thrust in the existing method was always greater than that in the proposed method. However, when the soil exhibited softening behavior or hump behavior, the total soil thrust in the existing method was greater than that in the proposed method until a specific slip ratio, after which the latter became greater. Unlike the existing method, the proposed method can consider the difference in soil thrust with the grouser shape ratio, showing that the total soil thrust increased as the grouser height increased and the shape ratio decreased.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Soil Mechanics and Vehicle Dynamics · Railway Engineering and Dynamics · Geotechnical Engineering and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil and Environmental Engineering & Construction Engineering Research Institute, Hankyong National University, Anseong 17579, Korea
Department of Forest Science, Chungbuk National University, Cheongju 28644, Korea
Department of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
BK21 FOUR, Department of Education, College of Education, Seoul National University, Seoul 08826, Korea
Funding
the Korea Agency for Infrastructure Technology Advancement under the Ministry of Land, Infrastructure and Transport
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