COMPUTER-ANWENDUNGENUND INFORMATIONS-
TECHNOLOGIE
Ground mechanic modelling for driving simulators
The task:
Driving simulators are used in many transport sectors (aviation, shipping, railways, automobile). State-of-the-art today is a close to reality simulation of acceleration behaviour with corresponding cabin movements and a real-time visualisation of the surroundings with the aid of graphic terrain models. These terrain models are not influenced by the vehicle’s behaviour. However, for all-terrain vehicles, diggers, bulldozers etc., both the mechanical and the visual interaction (e.g. when excavating earth) is of importance for the simulation. Corresponding soil models must be available.
The solution:
In co-operation with Brunswick’s Technical University, elastoplastic models (Drucker-Prager, von Mises) of the mechanical soil behaviour were implemented and evaluated in a first step. The mechanical interaction between the vehicle and various types of soil (pebbles, sand, clay etc.) can be simulated successfully. In a second step, continuum mechanical models (Euler or Lagrange view) will in future be implemented in connection with discretisation processes (finite elements, finite differences) to design and visualise the terrain’s behaviour.
Phone: 040 / 51 437 - 0
Fax: 040 / 51 437 - 130
e-mail: Vertrieb@caitec.de