Physics-Based Deformable Tire–Soil Interaction Model for Off-Road Mobility Simulation and Experimental Validation
| Autor: | Hiroki Yamashita, Mustafa I. Alsaleh, Hiroyuki Sugiyama, Paramsothy Jayakumar |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
business.industry Applied Mathematics Mechanical Engineering Rolling resistance Simulation modeling Mechanical engineering Interaction model 02 engineering and technology General Medicine Experimental validation Structural engineering Physics based Multibody system 01 natural sciences 020303 mechanical engineering & transports 0203 mechanical engineering Control and Systems Engineering 0103 physical sciences Cohesion (geology) business 010301 acoustics |
| Zdroj: | Journal of Computational and Nonlinear Dynamics. 13 |
| ISSN: | 1555-1423 1555-1415 |
| DOI: | 10.1115/1.4037994 |
| Popis: | A physics-based deformable tire–soil interaction simulation capability that can be fully integrated into the monolithic multibody dynamics computer algorithm is developed by extending a deformable tire model based on the flexible multibody dynamics approach to off-road mobility simulations with a moving soil patch technique and it is validated against test data. A locking-free nine-node brick element is developed for modeling large plastic soil deformation using the multiplicative finite strain plasticity theory along with the capped Drucker–Prager failure criterion. To identify soil parameters including cohesion and friction angle, the triaxial compression test is carried out, and the soil model developed is validated against the test data. In addition to the component level validation for the tire and soil models, the tire–soil interaction simulation capability developed in this study is validated against the soil bin mobility test results. The tire forces and rolling resistance coefficients predicted by the simulation model agree well with the test results. It is shown that effect of the wheel loads and tire inflation pressures is well captured in the simulation model. Furthermore, it is demonstrated that the moving soil patch technique, with which soil behavior only in the vicinity of the rolling tire is solved to reduce the soil model dimensionality, leads to a significant reduction in computational time, thereby enabling use of the high-fidelity physics-based tire–soil interaction model in the large-scale off-road mobility simulation. |
| Databáze: | OpenAIRE |
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