Journal of Terramechanics最新文献_第6页

Analysis of tire characteristics driving on asphalt paved roads covered with volcanic ash 在铺有火山灰的沥青路面上行驶的轮胎特性分析

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-10-24 DOI: 10.1016/j.jterra.2024.101025

Junya Yamakawa , Ryosuke Eto , Yasuhiro Ichikado , Mitsuhiro Yoshimoto , Tatsuji Nishizawa , Tomohiro Kubo , Hiroyuki Yamada

{"title":"Analysis of tire characteristics driving on asphalt paved roads covered with volcanic ash","authors":"Junya Yamakawa , Ryosuke Eto , Yasuhiro Ichikado , Mitsuhiro Yoshimoto , Tatsuji Nishizawa , Tomohiro Kubo , Hiroyuki Yamada","doi":"10.1016/j.jterra.2024.101025","DOIUrl":"10.1016/j.jterra.2024.101025","url":null,"abstract":"<div><div>Japan has many active volcanoes, and a large eruption can cause ash fall over a wide area. The accumulation of volcanic ash on paved roads affects the driving of vehicles. Therefore, we collected data by driving over volcanic ash accumulated on paved surface with a vehicle equipped with devices that can measure the force applied to the running tires. Vehicle driving tests were conducted at constant speed, rapid acceleration, and rapid deceleration. Data were collected on flat straight roads as well as on roads with grades and curves. In addition to longitudinal, lateral, and vertical tire forces, camber angle, rotation speed, and ground speed were measured. This paper discusses the effects of volcanic ash covering paved roads on driving by processing the tire data obtained. The relationship between the sideslip angle and side force can be obtained by processing turning driving data, and these effects were modeled using a neural network and Gaussian process that can consider multiple variables such as tire sideslip angle, camber angle, and vertical force.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101025"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terrain classification and rock abundance analysis at Utopia Planitia using Zhurong image data based on deep learning algorithms 基于深度学习算法，利用祝融影像数据对乌托邦行星进行地形分类和岩石丰度分析

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-10-09 DOI: 10.1016/j.jterra.2024.101022

Yan Shen , Dong Pan , Hongtao Cao , Baofeng Yuan , Yang Jia , Lianbin He , Meng Zou

{"title":"Terrain classification and rock abundance analysis at Utopia Planitia using Zhurong image data based on deep learning algorithms","authors":"Yan Shen , Dong Pan , Hongtao Cao , Baofeng Yuan , Yang Jia , Lianbin He , Meng Zou","doi":"10.1016/j.jterra.2024.101022","DOIUrl":"10.1016/j.jterra.2024.101022","url":null,"abstract":"<div><div>The complexity of image scene information presents challenges for the trafficability assessment and path planning of Mars rovers. To ensure the operational safety of Mars rovers and extract terrain features from complex image scenes, this paper develops an end-to-end deep learning model, using the deep convolutional neural networks ResNet50 and DeepLabV3 + as the framework, with images from the Zhurong rover’s navigation camera as the training and test datasets. A deep learning model suitable for classification and segmentation of terrain in the Mars Utopia Planitia region has been established and applied to planetary geology research. The classification accuracy of model exceeds 83.90 % and segmentation accuracy exceeds 80 %. Subsequently, an analysis of 1309 raw images from the navigation camera yielded 203,744 individual estimates of rock abundance, the model evaluates the rock abundance in the Utopia Planitia region, where the Zhurong rover is located, at 10.94 %. The terrain classification model proposed in this study provides both engineering and scientific value for future rovers on the Utopia Planitia.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101022"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of subsoiler design using similitude-based DEM simulation and soil bin testing on cohesive-frictional artificial soil 利用基于模拟的 DEM 仿真和粘性摩擦人工土壤的土仓测试优化底土机设计

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-11-22 DOI: 10.1016/j.jterra.2024.101026

Adewale M. Sedara , Mohamed A.A. Abdeldayem , Francisco Pratas Glycerio de Freitas , Tekeste Z. Mehari

{"title":"Optimization of subsoiler design using similitude-based DEM simulation and soil bin testing on cohesive-frictional artificial soil","authors":"Adewale M. Sedara , Mohamed A.A. Abdeldayem , Francisco Pratas Glycerio de Freitas , Tekeste Z. Mehari","doi":"10.1016/j.jterra.2024.101026","DOIUrl":"10.1016/j.jterra.2024.101026","url":null,"abstract":"<div><div>The study highlights the need for effective and efficient methods in designing tillage shanks to alleviate deep soil compaction, especially in wet soil conditions. Current techniques relying on full-scale tillage tools testing are prone to costly and time-consuming engineering product development cycles. DEM simulation of soil-to-shank interaction was utilized for screening twelve geometrically scaled (1:5.63) shanks to top-ranked six shanks, aiming reduced soil horizontal forces and maximum bulk density difference. Six scaled shanks (a straight, a bent, and four paraplow shapes) were fabricated and tested using a split-plot design soil bin experiment on cohesive-frictional artificial soil to investigate their performances on soil reaction forces and soil loosening parameters. Shank design had significant effects (<em>p</em> < 0.05) on energy responses (soil horizontal and vertical reaction forces), above-ground soil loosening (cross-sectional area, trench width, bulk density difference), and below-ground soil loosening (soil rupture area, D1 and D2) parameters. Using an optimization profiler, S-3 (β = 60°, α = 45°) demonstrated the best overall desirability score (0.58) with objectives reducing soil reaction forces and maximizing soil loosening. Manufacturing the S-3 to a full scale is proposed for evaluating its efficiency in tillage energy and soil loosening on field soil conditions for subsoil compaction management.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101026"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation of cohesive-frictional artificial soil-to-blade interactions using an elasto-plastic discrete element model with stress-dependent cohesion 利用弹性离散元件模型模拟人工土壤与叶片之间的内聚摩擦相互作用，该模型的内聚力取决于应力

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-11-05 DOI: 10.1016/j.jterra.2024.101029

Mohamed A.A. Abdeldayem , Mehari Z. Tekeste

{"title":"Simulation of cohesive-frictional artificial soil-to-blade interactions using an elasto-plastic discrete element model with stress-dependent cohesion","authors":"Mohamed A.A. Abdeldayem , Mehari Z. Tekeste","doi":"10.1016/j.jterra.2024.101029","DOIUrl":"10.1016/j.jterra.2024.101029","url":null,"abstract":"<div><div>The discrete element method (DEM) has become a valuable computational technique for simulating soil dynamic loading during bulldozer cutting processes. It allows for the virtual design of Ground Engaging Tools (GETs) and predicting energy expenditure during earthmoving operations. Few studies exist for modeling dynamic soil-cutting processes of soils exhibiting elasto-plastic behavior with stress-history-dependent cohesive soil behavior. The study aimed to calibrate an elasto-plastic DEM soil model, with cohesion, for a cohesive-frictional artificial soil and predict soil reaction forces from soil-to-blade interaction. Plackett-Burman screening design of experiment (DOE) and inverse profiling techniques were applied to calibrate the elasto-plastic DEM soil model, with cohesion, predicting soil compaction energy with a percent relative error (PRE) of 3 % and maximum normal stress (PRE of 1 %) using cohesive-frictional artificial soil in a uniaxial confined compression test. Validation of the calibrated DEM soil model resulted in good prediction of soil reaction forces versus blade displacement for a narrow planar blade, a wide planer blade, and a geometrically scaled curved bulldozer blade, with RMSE values of 2.04 N, 14.89 N, and 7.42 N, respectively. The findings showed that elasto-plastic soil behavior with stress-dependent cohesion can be modeled using DEM for simulating the cutting and moving of earthen materials, offering valuable insights for optimizing GET design and development of digital twins of earthmoving operations.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101029"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelling and simulation fundamentals in design for ground vehicle mobility Part II: Western approach 地面车辆机动性设计中的建模和模拟基础第二部分：西方方法

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-11-02 DOI: 10.1016/j.jterra.2024.101023

David Gorsich , Vladimir Vantsevich , Jesse Paldan , Lee Moradi

{"title":"Modelling and simulation fundamentals in design for ground vehicle mobility Part II: Western approach","authors":"David Gorsich , Vladimir Vantsevich , Jesse Paldan , Lee Moradi","doi":"10.1016/j.jterra.2024.101023","DOIUrl":"10.1016/j.jterra.2024.101023","url":null,"abstract":"<div><div>For many decades, different approaches, fundamentals, and expressions have been developed in various countries for military vehicle modelling and simulation (M&S) as a core component of ground vehicle design for mobility. The political division of the world into the West and East that existed before the Soviet Union breakdown in 1991 had not facilitated collaboration between researchers and engineers of both sides, and, thus, they created and practiced their own approaches. The war in Ukraine urgently prompted analysis of the origins and essence of the Western and Eastern technical paradigms, which being conceptually different to ground vehicle mobility, had predetermined the development of vehicle M&S methods and techniques in their parts of the world, specifically for studying dynamic interactions of vehicles with severely uncertain terrains, which impact vehicle behavior and performance, and, thus, may either facilitate mission accomplishment or lead to its failure. Furthermore, this analysis of the technical paradigms aims to further advance M&S fundamentals for next generation combat vehicles as described in the U.S. Army’s 2019 Modernization Strategy. Part I of this article considers the Eastern approach and the Western approach is presented in Part II.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101023"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical analysis of tire mobility on deformable plastic clay in saturated conditions using total and effective stress frameworks 利用总应力和有效应力框架对饱和条件下轮胎在可变形塑性粘土上的移动性进行数值分析

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-10-26 DOI: 10.1016/j.jterra.2024.101024

Varsha S. Swamy , Alba Yerro , Corina Sandu , Rashna Pandit , David Gorsich , Katherine Sebeck

{"title":"Numerical analysis of tire mobility on deformable plastic clay in saturated conditions using total and effective stress frameworks","authors":"Varsha S. Swamy , Alba Yerro , Corina Sandu , Rashna Pandit , David Gorsich , Katherine Sebeck","doi":"10.1016/j.jterra.2024.101024","DOIUrl":"10.1016/j.jterra.2024.101024","url":null,"abstract":"<div><div>Modeling and performance prediction of tires on wet, plastic, cohesive soils is challenging. In wet soils, the undrained shear strength reduces as water content increases. This work aims to model highly deformable saturated clay (plastic state) to predict the short-term effect on the soil due to a single pneumatic tire pass. The external loads on the soil (total stresses) can be carried by the soil skeleton (effective stress) and/or water (pore water pressure). Fundamentally, effective stresses determine soil failure. Hence, material models can be defined using two frameworks: total and effective stress. In total stress analysis, commonly found in literature, soil and water are modeled as one medium to address rapid loading. In effective stress analysis, pore pressure evolution can be tracked through hydromechanical formulations with different drainage conditions (dry and fully saturated soils). Further, different numerical techniques (FEM, ALE, and SPH) are compared. The effective stress model captures an accumulation of excess pore water pressure after one tire pass resulting from soil non-linear behavior, which may potentially affect the tire performance of later passes. In addition, the FEM model fails at higher normal loads and slip ratios due to excessive deformation; ALE and SPH give more stable solutions for large deformations.<span><span><sup>1</sup></span></span></div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101024"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of steer preview methods to improve predictive control methods on off-road vehicles with realistic actuator delays 研究转向预览方法，以改进具有实际执行器延迟的越野车预测控制方法

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-11-14 DOI: 10.1016/j.jterra.2024.101027

Andries J. Peenze, P. Schalk Els

{"title":"Investigation of steer preview methods to improve predictive control methods on off-road vehicles with realistic actuator delays","authors":"Andries J. Peenze, P. Schalk Els","doi":"10.1016/j.jterra.2024.101027","DOIUrl":"10.1016/j.jterra.2024.101027","url":null,"abstract":"<div><div>This paper investigates improvements that can be made to predictive control methods for off-road vehicles by adding of realistic steering preview. The objective of this study is to improve the performance and efficacy of predictive controllers by accounting for significant time delays in active and semi-active systems on vehicles. Traditional zero-order and first-order hold methods for steer preview are compared to a more realistic steer preview method. Semi-active suspension, rear wheel steering, and individual brake actuation are used as the actuators on this off-road vehicle. The results show that the addition of a realistic steering preview improves the handling performance of the vehicle in a severe double lane change manoeuvre on rough roads. Up to 10% reduction in roll angle can be achieved with semi-active suspension control. A 34% reduction in side-slip angle is possible with rear wheel steering control and a 15% reduction in side-slip angle is achieved with differential braking control. The controllers can pre-empt and consider the effect of the actuator time delays, and the preview states from the predictive controller are more representative over the prediction horizon. The findings suggest that the addition of a realistic steering preview can improve the performance of predictive controllers on vehicles. Further investigation of other disturbances and their preview effects on the system should be conducted to find further improvements for predictive control strategies on vehicles.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101027"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of selected tire-terrain interaction models from the aspect of accuracy and computational intensity 从精度和计算强度方面比较选定的轮胎-地形相互作用模型

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-11-08 DOI: 10.1016/j.jterra.2024.101030

Dávid Körmöczi , Péter Kiss

引用次数: 0

Shortwave infrared fusion for snow surface traversability mapping 融合短波红外线绘制雪面可穿越性地图

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-09-17 DOI: 10.1016/j.jterra.2024.101010

Anthony T. Fragoso, Sarah M. Piedmont

引用次数: 0

Predicting the impact of wheel passage on terrain unevenness 预测车轮通过对地形不平的影响

IF 2.4 3区工程技术

Journal of Terramechanics Pub Date : 2025-02-01 Epub Date: 2024-09-24 DOI: 10.1016/j.jterra.2024.101015

Antonio Leanza, Angelo Ugenti, Rocco Galati, Giulio Reina

{"title":"Predicting the impact of wheel passage on terrain unevenness","authors":"Antonio Leanza, Angelo Ugenti, Rocco Galati, Giulio Reina","doi":"10.1016/j.jterra.2024.101015","DOIUrl":"10.1016/j.jterra.2024.101015","url":null,"abstract":"<div><div>This article presents a novel approach to accurately predict how terrain unevenness is modified by the passage of a wheel under varying operating conditions. The proposed method uses a moving average filter to model the deformation of the soft soil caused by the rolling wheel. The window length of the filter is determined by key terrain parameters as well as the geometry of the wheel. The method’s accuracy and robustness are validated through a series of comparisons with a high-fidelity model developed in the multibody simulation environment <em>MSC Adams</em>, along with an experiment conducted in a real agricultural scenario. This model incorporates classical terramechanics theory to simulate the complex interactions between the wheel and the terrain. Key findings indicate that the moving average filter approach not only simplifies the computational process but also maintains a high degree of accuracy in predicting terrain deformation across a range of operating conditions. This method offers significant potential for improving the design and optimization of off-road vehicles, agricultural machinery, and planetary rovers by providing a more efficient tool to assess terrain interaction dynamics. In general, this study lays the foundations for advances in understanding and predicting terrain behavior under the influence of rolling wheels, contributing to the broader field of vehicle-terrain interaction research.</div></div>","PeriodicalId":50023,"journal":{"name":"Journal of Terramechanics","volume":"117 ","pages":"Article 101015"},"PeriodicalIF":2.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022489824000570/pdfft?md5=d47a517f92ba22dfa8bf7d147d1aedb3&pid=1-s2.0-S0022489824000570-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0