Soil Compaction Effects on Root-Zone Hydrology and Vegetation in Boreal Forest Clearcuts [PDF]
, 2019 Soil compaction is a common consequence of forestry traffic traversing unprotected, moist soils; it decreases porosity and affects hydraulic conductivity even in coarse-textured soils. The aim here was to study root-zone hydrology and vegetation in three
Bishop, Kevin +4 more
core +1 more source
Application of artificial neural networks for the prediction of traction performance parameters
Journal of the Saudi Society of Agricultural Sciences, 2014 This study handles artificial neural networks (ANN) modeling to predict tire contact area and rolling resistance due to the complex and nonlinear interactions between soil and wheel that mathematical, numerical and conventional models fail to investigate
Hamid Taghavifar, Aref Mardani
doaj +1 more source
Experimental identification of wheel-surface model parameters: various terrain conditions
Scientific Reports, 2022 Since the wheel interaction with a certain terrain cases (asphalt, concrete) are known and well described in case of straightforward motion and non-slip and slip cornering conditions, the skid-steered wheeled vehicles case needs to be analyzed. Side-slip
Tomasz Czapla +2 more
doaj +1 more source
DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]
, 2017 In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos +3 more
core +2 more sources
Evaluation of the shear deformation model in the process of wheel sinking by the wheel experiment
Nihon Kikai Gakkai ronbunshu, 2015 Soft soils cover on planetary surfaces, so the wheels for exploration rovers easily slip. Understanding an interaction between a wheel and soft soils is important for a traction control to improve rover traversability.
Noriaki MIZUKAMI +3 more
doaj +1 more source
Parameters Identification of Tire–Clay Contact Angle Based on Numerical Simulation
MachinesThe predictive accuracy of the Bekker–Wong model for wheel traction is highly dependent on the precision of the wheel–soil contact angle parameters. These parameters are typically identified through extensive and costly single wheel–soil tests, which are
Kaidi Wang +3 more
doaj +1 more source
International Journal of Advanced Robotic Systems, 2014 This paper presents a grouser developed for the wheels of lunar exploration rovers to measure sinkage. The wheels, which are intended to traverse loose soil such as lunar regolith, contain grousers that transfer thrust to the wheels and thus to the body ...
Kojiro Iizuka +3 more
doaj +1 more source
Modeling of the interaction of rigid wheels with dry granular media
, 2019 We analyze the capabilities of various recently developed techniques, namely Resistive Force Theory (RFT) and continuum plasticity implemented with the Material Point Method (MPM), in capturing dynamics of wheel--dry granular media interactions.
Agarwal, Shashank +6 more
core +1 more source
Exploring Tractive Performance of Planetary Rover's Rigid Wheels on Mixed Terrain
Xibei Gongye Daxue Xuebao, 2020 Based on insufficient studies of the tractive performance of a planetary rover's rigid wheels in soft soil and hard mixed soil terrains, a method for studying the tractive performance is presented.
doaj +1 more source
Discrete element modelling for wheel-soil interaction and the analysis of the effect of gravity
Journal of Terramechanics, 2020 Abstract The discrete element method (DEM) is widely seen as one of the more accurate, albeit more computationally demanding approaches for terramechanics modelling. Part of its appeal is its explicit consideration of gravity in the formulation, making it easily applicable to the study of soil in reduced gravity environments.
Eric Karpman +3 more
openaire +2 more sources