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Accession Number ADA574119
Title Physics Based Vehicle Terrain Interaction Model for Soft Soil off- Road Vehicle Simulations.
Publication Date 2012
Media Count 15p
Personal Author A. Seidl D. Negrut G. Bozdech J. Madsen P. Ayers
Abstract In the context of off-road vehicle simulations, deformable terrain models mostly fall into three categories: simple visualization of an assumed terrain deformation, use of empirical relationships for the deformation, or finite/discrete element approaches for the terrain. A real-time vehicle dynamics simulation with a physics-based tire model (brush, beam-based or Finite Element models) requires a terrain model that accurately reflects the deformation and response of the soil to all possible inputs of the tire in order to correctly simulate the response of the vehicle. The real-time requirement makes complex finite/discrete element approaches unfeasible, and the use of a ring or beam-based tire model excludes purely empirical terrain models.
Keywords Boussinesq soil mechanics
Bulldozing
Cerruti soil mechanics
Deformation
Energy
Finite element analysis
Gpu(Graphics processing unit)
Models
Physics based tire models
Power
Real time
Shear stresses
Simulation
Soft soil off road vehicle simulations
Soils
Tangent forces
Terrain geometry
Terrain models
Terramechanics
Three dimensional
Vertical loading
Vertical visco elasto plastic models
Vtim(Vehicle terrain interaction model)

 
Source Agency Non Paid ADAS
NTIS Subject Category 48I - Cartography
48E - Soil Sciences
50D - Soil & Rock Mechanics
Corporate Author Wisconsin Univ.-Madison. Dept. of Mechanical Engineering.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1318
Contract Number N/A

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