Experimental analysis of vertical soil reaction and soil stress distribution under off-road tires

Autor: T. Koumoto, Takaaki Matsuo, S. Inaba, Van Nang Nguyen
Rok vydání: 2008
Předmět:
Zdroj: Journal of Terramechanics. 45:25-44
ISSN: 0022-4898
DOI: 10.1016/j.jterra.2008.03.005
Popis: In this study, the vertical soil reaction acting on a driven wheel was measured by strain gages bonded to the left rear axle of a 2WD tractor driven under steady-state condition on different soil surfaces, tractor operations, and combinations of static wheel load and tire inflation pressure. In addition, the measurements of radial and tangential stresses on the soil–tire interface were made simultaneously at lug’s face and leading side near the centerline of the left rear tire using spot pressure sensors. The experimental results indicate that the proposed method of vertical soil reaction measurement is capable of monitoring the real-time vertical wheel load of a moving vehicle and provides a tool for further studies on vehicle dynamics and dynamic wheel–soil interaction. Furthermore, the measured distributions of soil stresses under tractor tire could provide more real insight into the soil–wheel interactions.
Databáze: OpenAIRE