Sökning: "deformable terrain model"
Hittade 5 uppsatser innehållade orden deformable terrain model.
1. Simulation Model for Forestry Ground and Vegetation Damage
Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysikSammanfattning : Training simulators are valuable tools in education of forest machine operators. One important part of the education is to learn about damages occurring due to the forest machines and how they can be avoided. Two types of damages are especially severe, soil compaction and formation of wheel ruts. LÄS MER
2. Analysis of the rigid multibody tire
Kandidat-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : A brief description of the multibody system mechanics is given as the first step in this thesis to present the dynamical equations which will be the main tool to analyze the two-body tire model. After establishing the basic theory about multibody systems to understand the main character in the thesis (the tire) all the physical components playing in the tire terrain interaction will be defined together with some of the developed ways and models to describe the tire rolling on non-deformable terrain and the tyre rolling on the deformable terrain. LÄS MER
3. Terrain machine learning : A predictive method for estimating terrain model parameters using simulated sensors, vehicle and terrain
Master-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : Predicting terrain trafficability of deformable terrain is a difficult task with applications in e.g, forestry, agriculture, exploratory missions. The currently used techniques are neither practical, efficient, nor sufficiently accurate and inadequate for certain soil types. LÄS MER
4. Terramechanics based wheel-soil model in a computer game enviroment
Magister-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : This thesis aimed to develop deformable a virtual terrain which a vehicle can move in and interact with in a realistic manner. The theory used to calculate how the terrain influences the vehicle is based on terramechanics. The terrain is divided into two separate parts, one for visualization and one for physical collisions. LÄS MER
5. A deformable terrain model in multi-domain dynamics using elastoplastic constraints: An adaptive approach
Master-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : Achieving realistic simulations of terrain vehicles in their work environment does not only require a careful model of the vehicle itself but the vehicle's interactions with the surroundings are equally important. For off-road ground vehicles the terrain will heavily affect the behaviour of the vehicle and thus puts great demands on the terrain model. LÄS MER
