1st Edition
Dynamics of Wheel-Soil Systems A Soil Stress and Deformation-Based Approach
Introduction to Wheel–Soil Systems
Ground Vehicles and Their Running Gears
Major Research Problems
References
Measurement of Soil Stress and Deformation
Soil Stress Measurements: Introduction
Characterisation of Soil Stress Transducers
Strain Gage Pressure Transducers for Soils
Stress State Transducer (SST)
Soil Deformation Determination
Conclusions
References
Soil Stress and Deformation State: Investigations in Monolith Soil Samples
Introduction
Effect of Static Load and Soil Stress and Deformation in Loamy Luvisol
Effects Deformation Rate on Soil Stress and Deformation State in Loess
References
Stress State under Wheeled Vehicle Loads
Introduction
Field Experiment Preparation
Analysis of Principal Stresses
Effect of Vehicle Loading and Reduced Inflation Pressure
Effects of Repeated Rolling
Analysis of Octahedral Stresses
Relationships of Soil Stress and Drawbar Pull
Final Discussion and Concluding Remarks
References
Stress State under Tracked Vehicle Loads
Introduction
Experimental Methods
Analysis of Soil Stress State under Loading by Tracked Vehicles
Determination of Soil Stress–Strain Relationships
Effects of Rubber Pads on Soil Stress and Tracked Vehicle Traction
Final Conclusions
References
Wheel–Soil Dynamics for Aircraft Tyres on Unsurfaced Airfields
Introduction
Soil Stress State under Loading of Landing Aircraft
Rolling Resistance Coefficients for Aircraft Tyres on Unsurfaced Airfields
Effect of Grassy Surface on Take-Off Distance
Proposed Method for Airfield Surface Evaluation and Classification
Summary
References
Snow Stress State under Ground Vehicle Loads
Introduction
Snow Stress Measurement Methods
Determining Snow Stress under Loading of Grooming Machine
Determination of Winter Traction and Snow Stresses under Military Truck Loading
Effects of Snow Skis on Snow Stresses and Aircraft Ground Performance
Summary
References
Modelling of Wheel–Soil System Based on Soil Stress and Deformation State Analysis
Introduction
Modelling Off-Road Traction
Modelling Soil Stress State by System Identification (SI)
Modelling Dynamic Effects of Wheel–Soil System
Summary
References
Summary
Index
Biography
Jaroslaw Alexander Pytka is a research engineer and instructor of undergraduate and graduate students of automotive technology at the Lublin University of Technology, Poland. Dr. Pytka earned an MS in automotive technology from the Lublin University of Technology in 1992, and a Ph.D. in soil physics from the Institute of Agrophysics in Lublin. His major research interest is wheel–soil interaction analysis with a focus on experimental studies. Dr. Pytka has authored or coauthored more than 50 papers and is a reviewer for the Journal of Terramechanics.
