LINKING SOIL RESPONSE MODELING AND VEHICLE PERFORMANCE FOR VIRTUAL ENVIRONMENTS

摘要

Virtual Environments (VE) are being increasingly utilized for vehicle and mobility assessments to support vehicle design, modification, and acquisition initiatives. An important aspect of the development of the Virtual Proving Ground (VPG) involves representing soil-traction element interaction for a vehicle traversing a given area in a synthetic environment. Mobility modeling with the NATO Reference Mobility Model (NRMM) has typically been concerned with generating steady-state maximum speed predictions for 500 meter or longer segments. To advance development of the VPG, soil-traction element representation at higher resolution and a less-than-steady state maximum potential is required. The U.S. Army Engineer Waterways Experiment Station has developed a capability to model high resolution soil-traction element interaction based on mobility-related environmental parameters. Soil response algorithms are being coupled with vehicle dynamics models to simulate vehicle performance in VE at less-than-maximum speeds. The purpose of this paper is to describe the soil response modeling methodology and results of linkage with VE.