Sinkage and rolling resistance of wheels

Sitkei, Gy.

doi:10.1556/446.11.2015.3

Cited by 5 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At each moisture content, the sinkage increases with the applied pressure (applied force divided by the plate area). The obtained pressure-sinkage relation at each moisture content complies with the pressure-sinkage equation suggested by Saakyan in 1959 that is based on elastic half-space Boussinesq theory (Equation ( 2)) [29,[31][32][33][34].…”

Section: Bevameter Results (Pressure-sinkage Relationship)supporting

confidence: 82%

Soil Spectral Behavior Related to Its Load-Bearing Capacity Based on Moisture Content

2023

View full text Add to dashboard Cite

Soil’s load-bearing capacity is a crucial property from which the ability of soil to resist the vertical deformation resulting from a normal load can be determined, and this property is essential for analyzing a vehicle’s performance over soil terrain in terramechanics studies. Soil’s moisture content has a significant impact on its load-bearing capacity and spectral behavior. This study aims to show the relation between the load-bearing capacity and the spectral behavior of sandy loam soil. The study presents the load-bearing capacity and color results of sandy loam soil at different moisture contents. The load-bearing capacity was measured using the Bevameter technique, and the color was measured using spectrophotometer technology that sends waves in the visible range (400–700 nm). The pressure–sinkage results of the tested soil show that with an increase in the moisture content, the bearing capacity of the soil decreases, and the color results show a decrease in the color reflectance with the increase in the moisture content. The measurements were performed in the laboratory of the vehicle technology department at Hungarian University of Agriculture and Life Sciences (MATE).

show abstract

Section: Bevameter Results (Pressure-sinkage Relationship)supporting

confidence: 82%

Soil Spectral Behavior Related to Its Load-Bearing Capacity Based on Moisture Content

2023

View full text Add to dashboard Cite

show abstract

“…The tyres fitted to the FWA tractor ensured the spoke ratios remained close to constant at approximately 1. 25. In all tractor-tyre combinations, the tyre inflation pressures were adjusted to match the manufacturer's specifications for load and speed.…”

Section: Description Of Farm Equipment and Experimental Treatmentsmentioning

confidence: 99%

“…The net result is a concurrent reduction in fuel-use efficiency [23]. When traffic is performed on soft soil conditions, increased tyre inflation pressure above the manufacturer's designated pressure for load, speed, and slope will tend to increase sinkage into the ground (rut depth) and rolling resistance [24,25], and a rule of thumb suggests that 10 mm of additional depth can increase fuel consumption by approximately 10% [26]. Similarly, overinflation of the tyre increases the slip rate due to the reduced soil-tyre contact area [27,28], which at 30% can increase fuel consumption by 20% or greater and cause significant compaction [23,26].…”

Section: Introductionmentioning

confidence: 99%

Tyre Configuration and Axle Load of Front-Wheel Assist and Four-Wheel Drive Tractors Effects on Soil Compaction and Rolling Resistance under No-Tillage

et al. 2022

View full text Add to dashboard Cite

Selecting the appropriate tyre configuration and settings for heavy farm vehicles is important to ensure that soil compaction and power loss in rolling resistance are minimised and traction is optimised. This study investigated the effect of front-wheel assist (FWA, ≈75 kN) and four-wheel drive (4 WD, ≈100 kN) tractors fitted with different tyre configurations (single, dual), tyre sizes and inflation pressures on soil strength (a proxy for soil compaction), and rolling resistance. Single-pass tests were performed on a Typic Argiudoll (≈23% clay, bulk density: 1305 kg m−3) managed under permanent no-tillage. Results showed that average power losses in rolling resistance were 7.5 kN and 5 kN for the 4 WD and FWA tractors, respectively. The average rut depth increased by approximately 1.4 times after a pass of the 4 WD compared with the FWA tractor. The soil cone index (0–600 mm depth) increased from 2023 kPa (before traffic) to 2188 and 2435 kPa after single passes of the FWA and 4WD tractors, respectively (p < 0.05). At the centreline of the tyre rut, dual tyres reduced the soil cone index a little compared with single tyres, but they significantly increased the volume of soil over which soil strength, and therefore soil compaction, was increased. For both tractors (regardless of tyre configuration or settings), soil strength increased to the full measured depth (600 mm), but relative changes before vs. after traffic became progressively smaller with increased soil depth. The power loss in rolling resistance was consistently greater with the heavier tractor, and rut depth was directly related to tyre inflation pressure.

show abstract

“…Existing runaway vehicle deceleration measures can be roughly divided into four categories: a steep slope type, relying on the vehicle's own gravity; an arrangement of sand and gravel for deceleration; an arrester-bed type; or a flexible interceptor rope or interception network structure. Several studies [10][11][12] have reported effective tire controls for out-of-control vehicles, such as setting up gravel or fine sand to increase friction to stop vehicles. In addition, flexible devices are characterized by a high ratio of energy-dissipating ability to mass, and have been widely used for interception protection of fighter planes on aircraft carriers [13,14] and protection against falling rocks in mountainous areas [15,16].…”

Section: Introductionmentioning

confidence: 99%

Development of a Runaway Vehicle Protective Barrier System Using Simulation and Full-Scale Crash Testing

Zhang

Zhao

et al. 2023

Sustainability

View full text Add to dashboard Cite

Effective road safety plays an important role in achieving sustainable development goals worldwide. A large number of accidents occur on roads every year, resulting in countless losses of people, vehicles, and roads; as such, the problem of loss of vehicle control has increasingly attracted the attention of scholars. Different vehicle protective measures, such as increasing the friction of tires or applying energy-absorbing materials, have been applied; however, their application is not yet fully effective. In this paper, a flexible protective barrier system is proposed for the protection of runaway vehicles, which can successfully stop the vehicle and ensure the safety of passengers. At the same time, the system can be recycled, which means that costs can be saved, to a certain extent. Accurate finite element simulation and real vehicle tests are conducted to verify the effectiveness of the protective system. The proposed flexible protection system is found to be effective in intercepting different types of runaway vehicles, while no major damage occurred to the vehicle itself, thus indirectly ensuring the safety of the occupants. The research lays a foundation for subsequent road safety protection and maintenance of sustainable development.

show abstract

Sinkage and rolling resistance of wheels

Cited by 5 publications

References 3 publications

Soil Spectral Behavior Related to Its Load-Bearing Capacity Based on Moisture Content

Soil Spectral Behavior Related to Its Load-Bearing Capacity Based on Moisture Content

Tyre Configuration and Axle Load of Front-Wheel Assist and Four-Wheel Drive Tractors Effects on Soil Compaction and Rolling Resistance under No-Tillage

Development of a Runaway Vehicle Protective Barrier System Using Simulation and Full-Scale Crash Testing

Contact Info

Product

Resources

About