Evaluation of the Slip Sinkage and its Effect on the Compaction Resistance of an Off-Road Tracked Vehicle

Baek, Sung-Ha; Shin, Gyu-Beom; Lee, Seung-Hwan; Yoo, Mintaek; Chung, Choong-Ki

doi:10.3390/app10093175

Cited by 13 publications

(6 citation statements)

References 23 publications

(35 reference statements)

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“…All results have linear trend with considerable values of coefficient of correlation. The research results are consistent with past researches [29][30][31][32][33][34] .…”

Section: Pressure and Sinkage Of Soil With Rubber Platesupporting

confidence: 92%

Effects of soil mechanical properties on the height and tractive performance of rubber grouser at different moisture contents

Shaikh¹,

Li²,

Ma³

et al. 2022

International Journal of Agricultural and Biological Engineering

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Rubber tracked vehicles are commonly used on agricultural machinery that perform agricultural operations such as rice harvesting in soft paddy fields with low bearing capacity. Research was carried out to assess the influence of soil moisture content and mechanical properties on the tractive performance of a rubber grouser with three heights (45 mm, 55 mm, 60 mm). The direct shear test and penetration test were used in this study, which was based on a semi-empirical approach of determining tractive parameters. Direct shear tests were used to measure soil shear strength parameters such as cohesion, adhesion, internal and exterior friction angles. The results of the penetration test were used to determine tractive parameters such as soil thrust, running resistance, and traction, for the penetration test, a device was designed and developed. The experimental results revealed that soil cohesion and adhesion increased linearly with increasing soil moisture content, however adhesion dropped after 30.7%. Similarly, the soil thrust initially increased till 21.5% then decreased. Furthermore, running resistance had a decreasing trend over soil moisture content whereas maximum traction achieved for 45 mm grouser height at 21.5% moisture content. It was concluded that a rubber grouser with 45 mm height had better traction rather than 55 mm and 60 mm, it can be suitably used for designing a track system for a crawler vehicle (e.g., harvester) leading to its greater adoption among the farmers.

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“…All results have linear trend with considerable values of coefficient of correlation. The research results are consistent with past researches [29][30][31][32][33][34] .…”

Section: Pressure and Sinkage Of Soil With Rubber Platesupporting

confidence: 92%

Effects of soil mechanical properties on the height and tractive performance of rubber grouser at different moisture contents

Shaikh¹,

Li²,

Ma³

et al. 2022

International Journal of Agricultural and Biological Engineering

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“…So it can be approximated that the wheel-track subsidence are static. 29 The soil-stress relationship satisfies the Bekker model, 30 terramechanics analysis of wheels and tracks in the soil is shown as Figure 2.Where s donates the radial reaction force of the soil, F d is the net tractive force of the vehicle and W donates the vertical load. When the vehicles are statically sinking, according to Bekker's pressuresinking theory, the formula of radial reaction force and wheel-track subsidence is:…”

Section: Vehicle-terrain Dynamics Modelmentioning

confidence: 96%

Vertical load distribution strategy of amphibious wheel-track vehicle using neural network and particle swarm optimization

Gao

Tang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Amphibious wheel-track vehicle (AWTV) can change the vertical load of the wheels and the tracks through the active hydro-pneumatic suspension system, which shows significant advantages in terms of maneuverability and road passing ability. However, AWTV is a strong nonlinear system. The irregularity of the road, and coupling characteristics between the vertical load of the wheel-tracks and the terrain will greatly affect the tractive efficiency of the whole vehicle. Therefore, how to effectively distribute the vertical load between the wheel and the track to improve the tractive efficiency of the whole vehicle is still a huge challenge. To address the above problems, based on the neural network (NN) and particle swarm optimization (PSO) algorithm, vertical load distribution strategy of the AWTV is proposed to improve its traction efficiency under different driving road in this paper. Firstly, the coupling dynamics model of AWTV with road and hydraulic system dynamics model of active suspension is established; Secondly, the wheel-track terrain model is built in EDEM-Recurdyn to collect data of vertical load and traction efficiency under the different soils and speeds, and the coupling function is obtained through NN; Then, the optimal vertical load of each axle is optimized through PSO; Finally, the feasibility and effectiveness of the strategy are verified by the simulation analysis under different road conditions and distribution strategies. The simulation and test results demonstrate that the proposed vertical load distribution strategy based on NN-PSO can effectively improve the traction performance of the AWTV in complex terrain environment, and have relatively superior control characteristics.

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“…Based on the orthogonal test results, eliminating non-significant factors (p > 0.05), experimental data were analyzed and fitted with the quadratic polynomials that were obtained using the regression model. Equation (7) showed the regression models of the adhesion force, and Equation ( 8) represented adhesive soil mass regression response surface models. To ensure the adaptability and accuracy of the model, it was necessary to evaluate the predictive ability by analyzing the determination coefficient.…”

Section: Anova Analysismentioning

confidence: 99%

“…After the rainy season, the moisture content often exceeds 20% which is close to rheological properties, therefore, the adhesion performance is very prominent [3,4]. Because of the strong adhesion, the phenomenon of soil adhesion frequently occurs between the soil and the grouser shoes of tracked vehicles, which significantly increases the energy consumption and the working resistance and has greatly affected the production efficiency [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Structure Parameters of the Grouser Shoes for Adhesion Reduction under Black Soil

Xin-long

et al. 2021

Agriculture

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The black soil of Northeast China has a strong adhesion ability because of its unique physical properties, and the soil often adheres to the surface of the grouser shoes of tracked vehicles during the operation. The adhesion performance depends largely on structure parameters of the grouser shoes. The grouser height, the grouser thickness, and the grouser splayed angle were selected as structure parameters. The adhesion force and adhesive soil mass were selected as indicators of adhesion performance. Therefore, the mathematical model between structure parameters and response indicators was established by the response surface method (RSM). The optimal parameters combination was that the grouser height was 20 mm, grouser thickness was 6.34 mm, and grouser splayed angle was 40.45°. The average data of verification experiments occurred when the adhesion force reached 1.11 kPa and adhesive soil mass reached 22.68 g. Compared with the average value of un-optimized experiment results, the adhesion force and adhesive soil mass reduced by 12.84% and 4.63%, respectively. The relative error of the predicted values and measured values was less than 5%, proving the reliability of the regression models. This study could provide a reference method for parameters optimization, and a new structure of the grouser shoes of tracked vehicles will be designed to reduce adhesion.

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Evaluation of the Slip Sinkage and its Effect on the Compaction Resistance of an Off-Road Tracked Vehicle

Cited by 13 publications

References 23 publications

Effects of soil mechanical properties on the height and tractive performance of rubber grouser at different moisture contents

Effects of soil mechanical properties on the height and tractive performance of rubber grouser at different moisture contents

Vertical load distribution strategy of amphibious wheel-track vehicle using neural network and particle swarm optimization

Optimization of Structure Parameters of the Grouser Shoes for Adhesion Reduction under Black Soil

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