Modelling in FEM the soil pressures distribution caused by a tyre on a Rhodic Ferralsol soil |
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| Institution: | 1. Departamento de Ingeniería Agrícola, Facultad de Ciencias Agropecuarias, Universidad Central “Marta Abreu” de las Villas, Carretera a Camajuaní km 5 ½, Santa Clara, VC, Cuba;2. Centro de Mecanización Agropecuaria, Facultad de Ciencias Técnicas, Universidad Agraria de la Habana, Carretera a Tapaste, San José, Mayabeque, Cuba;3. Centro de Investigación en Métodos Computacionales y Numéricos en la Ingeniería, Facultad de Construcciones, Universidad Central ‘‘Marta Abreu’’ de las Villas, Carretera a Camajuaní km 5 ½, Santa Clara, VC, Cuba;1. Department of Agricultural Machinery Engineering, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;2. Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran;1. Department of Agroecology, Faculty of Science and Technology, Aarhus University, Blichers Allé 20, Postbox 50, DK-8830 Tjele, Denmark;2. Institute of Environmental and Biological Sciences, University of Aberdeen, AB24 3FX, St. Machar Drive, Aberdeen, UK;3. Agroscope, Department of Natural Resources and Agriculture, Reckenholzstrasse 191, CH-8046 Zurich, Switzerland;4. Swedish University of Agricultural Sciences, Department of Soil & Environment, Box 7014, SE-75007 Uppsala, Sweden;5. Department of Civil Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark;1. Terramechanics, Multibody, and Vehicle Systems (TMVS) Laboratory, Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061, United States;2. U. S. Army Engineer Research and Development Center, Vicksburg, MS 39180-6199, United States;1. Institute of Advanced Manufacturing and Intelligent Technology, Beijing University of Technology, Beijing 100124, China;2. School of Mechanical Engineering, Hebei University of Science & Technology, Hebei 050018, China;3. Center of Science and Technology Evaluation, Ministry of Science and Technology, Beijing 100081, China |
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| Abstract: | Tyre traffic over soil causes non-uniform ground pressures across the tyre width and along the soil–tyre contact area. The objective of this paper was to obtain in the topsoil the shape, magnitudes, distribution and transmission in depth of the ground pressures from a finite element model of soil compaction. The influence of tyre inflation pressure, tyre load and soil water content over the pressures propagation in the soil was analysed. The model shows how to low inflation pressure the tyre carcass supports most of the total load and the biggest peak pressures are distributed in the tyre axes when it traffics over firm soil. For high inflation pressure the incremented stiff causes that pressure is distributed with parabolic shape. In wet soil the inflation pressure does not influence on the ground pressure distribution, this depends only on the tyre load. The inflation pressure and tyre load changed the shape of the vertical pressures distribution on the surface of a hard dry soil, but these variables did not affect the distribution of vertical stresses in a soft wet soil or below a depth of 0.15 m. |
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| Keywords: | Ground pressure Tyre–soil interaction FEM Rhodic Ferralsol soil |
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