集成土壤接触模型 - 用于模拟带车轮和履带的低速车辆的灵活压力下沉方法

IF 6.1 1区农林科学 Q1 SOIL SCIENCE

Soil & Tillage Research Pub Date : 2024-10-18 DOI:10.1016/j.still.2024.106312

S. Kulju , J. Ala-Ilomäki

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引用次数: 0

摘要

针对在车轮和轨道上行驶的车辆，开发了一种集成土壤接触模型和模块化地形力学模拟器 VieteriSim。所提出的计算方法扩展了土壤接触模型，根据理论函数或实验数据集引入了用户定义的压力-下沉关系，以所需的分辨率对接触面积上的压力进行数值积分，并基于矢量计算滚动阻力系数。模型的收敛性和计算方法的能力通过模拟在松软地形上行驶的带转向架履带和不带转向架履带的定尺木材运输车得到了验证。

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Integration soil contact model – A flexible pressure-sinkage method for simulating low speed vehicles with wheels and tracks

An integration soil contact model and a modular terramechanics simulator VieteriSim for vehicles running on wheels and tracks were developed. The presented computational method extends the soil contact model by introducing a user defined pressure-sinkage relationship according to a theoretical function or an experimental data set, a numerical integration of pressure over a contact area with a desired resolution and vector based rolling resistance coefficient calculation. The convergence of the model and the capability of the computational method are demonstrated by simulating a cut-to-length timber forwarder running on a soft terrain with and without bogie tracks.

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来源期刊

Soil & Tillage Research 农林科学-土壤科学

CiteScore

13.00

自引率

6.20%

发文量

266

审稿时长

5 months

期刊介绍： Soil & Tillage Research examines the physical, chemical and biological changes in the soil caused by tillage and field traffic. Manuscripts will be considered on aspects of soil science, physics, technology, mechanization and applied engineering for a sustainable balance among productivity, environmental quality and profitability. The following are examples of suitable topics within the scope of the journal of Soil and Tillage Research: The agricultural and biosystems engineering associated with tillage (including no-tillage, reduced-tillage and direct drilling), irrigation and drainage, crops and crop rotations, fertilization, rehabilitation of mine spoils and processes used to modify soils. Soil change effects on establishment and yield of crops, growth of plants and roots, structure and erosion of soil, cycling of carbon and nutrients, greenhouse gas emissions, leaching, runoff and other processes that affect environmental quality. Characterization or modeling of tillage and field traffic responses, soil, climate, or topographic effects, soil deformation processes, tillage tools, traction devices, energy requirements, economics, surface and subsurface water quality effects, tillage effects on weed, pest and disease control, and their interactions.