We outline a continuum approach for treating discrete granular flows that holds across multiple scales: from experiments that focus on centimeter-size control volumes, to tests that …
In this paper, a novel optimization model is developed for heavy construction equipment. This approach investigates a complete range of engine operating points, considering fuel …
A characteristic curve is presented for predicting gross traction of a wheel over a range of powered, towed, and braked modes on clay soils for slip ranging from positive 100 …
GL Mason, JM Williams, F Vahedifard… - Journal of Terramechanics, 2018 - Elsevier
Vehicle traction between the wheel and the ground surface is a critical design element for on- road and off-road mobility. Adequate traction in dry sand relates to the vehicle's ability to …
Modeling and simulation of vehicles in sand is critical for characterizing off-road mobility in arid and coastal regions. This paper presents improved algorithms for calculating sinkage …
F Vahedifard, JM Williams, GL Mason… - … journal of vehicle …, 2017 - inderscienceonline.com
A gap in off-road mobility is the availability of the test data necessary for the development and validation of tyre, track and soil models. This paper presents the results from a multi …
JM Williams, F Vahedifard, IL Howard… - Journal of …, 2019 - Elsevier
With over 8000 field and laboratory tests, the Database for Off-Road Vehicle Environments (DROVE) provides a consolidated database of parameters for the assessment of tracked …
JM Williams, F Vahedifard… - The Journal of …, 2019 - journals.sagepub.com
Predicting the resisting forces against a vehicle's wheel during movement in loose sand is critical for optimizing tractive capabilities in desert regions, sand dunes, and beaches. We …