th Proceedings of the

12 European Regional Conference of the ISTVS

GerotekTest Facilities, Pretoria, South Africa 24-28 September 2012

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ISTVS ISBN 978-0-9838742-1-8

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Session 1: Soil and terrain modelling and characterisation A 3D Laser Scanner for Measuring Rut in Soil Bin Jianqioo Li, Yang Wang, Shichao Fan, Ling He and Qingping Liu

Road Friction Estimation Using Stereography T.R. Botha and P.S. Els

Size Effect of DEM Particle in the Simulation of Soil-tool Interactions T. Tsuji, Y. Matsui, Y. Nakagawa, Y. Kadono, T. Tanaka

Soft Soil Tire Model Development and Experimental Testing Corina Sandu, Eduarde* Pinto, Scott Naranjo, Paramsothy Jayakumar and Brant Ross

Session 2: Planetary rovers and mobile robotics 3D Simulation System of Interactions Between Rigid Wheel with Irregular Structure and Loose Lunar Soil Simulant Rui Zhang, Fang Liu, Guiyin Zeng, Jianqiao Li

Experimental Study on the Bearing Capacity of the Simulant Lunar Regolith with Different Particle Size Distribution Zhenjia Zhao, Meng Zou and Cangang Wei

Comparative Analysis of Lightweight Robotic Wheeled and Tracked Vehicle Christopher Johnson and Corina Sandu

Frontal Profile Shape of Rigid Wheel Tread to Reduce Sinkage on Sandy Soil Travel Junya Yamakawa and Mashashi Akahane

Session 3: Agricultural and earth moving equipment Effect of Elemental Shape on Cutting Resistance in DEM Analysis of Soil-blade System Ikuya Ono, Hiroshi Nakashima, Hiroshi Shimizu, Juro Miyasaka and Katsuaki Ohdoi

The Effective Profile of Excavation Bits Tadaomi Eguchi and Kazuya Oda

Small and Light Excavation System for the Moon Shota Nakajima, Takaaki Yokoyama and Kazuyoshi Tateyama

Quasi Isochronous Wireless Communication Protocol for Co-operative Heavy-Duty Vehicle Clusters Massimiliano Ruggeri, Giorgio Malaguti, Massimo Dian and Carlo Ferraresi

Session 4: Agricultural and earth moving equipment Real Time Ethernet for Heavy-Duty Vehicle Powertrain Control Massimiliano Ruggeri, Giorgio Malaguti and Massimo Dian

Self Powered Wireless Sensors for Chassis, Powertrain, Working Equipment and Trailed Implements DavideCarli, Denis Dondi, Alessandro Bertacchini, Luca Larcher and Massimiliano Ruggeri

Investigation of Physical Parameters of Agricultural and Construction Machinery Tyres under Critical On-Road Conditions Karol Centkowski, Alfred Ulrich

Session 5: Terramechanics 3D DEM Simulation in Trafficability of Smooth Rigid Wheel with Different Section Structures Moving on Sand Rui Zhang, Sihua Zhang, Haibao Liu, Jianqiao Li

The Method for Extracting the Variation Laws of the Internal Pressure of Lunar Soil Simulant Under the Tilted Condition Jianqiao Li, Ruiyang Shi, Yanjing Yang, Shigao Fan, Han Huang and Cangang Wei

Modelling of Transient Wheel-soil Interaction Using the Discrete Element Method William Smith and Hue Peng

Optimization of Off-Road Tyres' Inflation Pressure Haytham El-Zomor, Sayed Shaaban, Samir El-Demerdash and Mohamed Ali

Effect of Vegetation Biomass on Vehicle Traction and Motion Resistance Sally Shoop, Barry Coutermarsh, Tim Сагу

Session 6:Terramechanics Multinational Analysis of Military Vehicle Impacts and Regulatory Pressures on Training Land Management Pertaining to Land Condition and Maneuver Activities Anne Dain-Owens and Heidi Howard

Root Structure Role in Soil shear Strength: Trafficability Impacts and Carrying Capacity Heidi Howard, Andrew Fulton, George Gertner, Anne Dain-Owens, Daniel Koch and Niels Svendsen

A New Method to Measure Soil Shear: Vegetation and Soil Shear Tester (VASST) Kelley MacDonald, Barry Coutermarsh and Sally Shoop

Validation of a Model for Predicting Slope Stability of Heavily Loaded Road Embankments Javier Osorio, Brent Towne, Maria Brown and George Mason

Session 7: Vehicle dynamics, mobility and safety Torque Vectoring for Improving the Mobility of All-Terrain Electric Vehicles Valentin Ivanov, Klaus Augsburg and Dzmitry Savitski

Model Validation of Mini-Baja Vehicle Anna Strydom and Schalk Eis

A Multi-body Longitudinal Dynamics Model of a Sports-utility-vehicle Herman Hamersma and Schalk Eis

Effect of Hysteresis in Steel Leaf Springs on Ride and Suspension Forces - Preliminary Study Cor-Jacques Kat and Schalk Eis

Session 8: Vehicle dynamics, mobility and safety Dynamic Tyre Pressure Control System for Improvement of All-Terrain Vehicle Mobility Klaus Augsburg, Peter Kiss, Katsiaryna Kruchkova and Kristian Hopping

Wheel Force Transducer Measurements on a Vehicle in Transit Carl Becker and Schalk Eis

Model-based Development of Machines for Sustainable Forestry UlfSellgren, Abdurasul Pirnazarov, Kjell Andersson and Björn Löfgren

Vehicle Rollover Prevention using Rear Wheel Steering Control Donna-Lee Faure, Nicolaas Johannes Theron and Schalk Eis

Modeling Urban Mobility George Mason, Greg Green and John Patterson

Model Based Design of a Vehicle Dynamics Control System Andreas Bogala and Alfred Ulrich

Session 9: Tires, wheels and tracks modelling Validation of Mathematical Tyre Models used in Vertical Vehicle Dynamic Simulations Joachim Stallmann and Schalk Eis

Modeling of the Bearing Capacity of Nordic Forest Soil Abdurasul Pirnazarov, Madura Wijekoon, UlfSellgren, Björn Löfgren and Kjell Andersson

Measuring Tyre Contact Patch Deformation Using Stereography Theunis Botha, Schalk Eis and Carl Becker

Mobility Investigation of the Crawlerway Compatibility for the Ares V Crawler Transporter George Mason, Burhman Gates and Christopher Cummins

Identification of Volumetric Wheel/Soil Interaction Model Parameters from Planetary Rover Experiments Willem Petersen and John McPhee