State of the art modeling of soil–tillage interaction using discrete element method

Shmulevich, I.

doi:10.1016/j.still.2010.08.003

Cited by 109 publications

(48 citation statements)

References 30 publications

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“…The soil tool interaction force F L is a highly nonlinear component, which acts on the end effector. Several researches are dedicated to the computation of soil-tool interaction forces [62][63][64][65]. The influence of the soil-tool interactions on the state variables of the manipulator would also affect the friction torque generated at the revolute joints.…”

Section: History Of Dynamic Modellingmentioning

confidence: 99%

A review of friction models in interacting joints for durability design

2017

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This paper presents a comprehensive review of friction modelling to provide an understanding of design for durability within interacting systems. Friction is a complex phenomenon and occurs at the interface of two components in relative motion. Over the last several decades, the effects of friction and its modelling techniques have been of significant interests in terms of industrial applications. There is however a need to develop a unified mathematical model for friction to inform design for durability within the context of varying operational conditions. Classical dynamic mechanisms model for the design of control systems has not incorporated friction phenomena due to non-linearity behaviour. Therefore, the tribological performance concurrently with the joint dynamics of a manipulator joint applied in hazardous environments needs to be fully analysed. Previously the dynamics and impact models used in mechanical joints with clearance have also been examined. The inclusion of reliability and durability during the design phase is very important for manipulators which are deployed in harsh environmental and operational conditions. The revolute joint is susceptible to failures such as in heavy manipulators these revolute joints can be represented by lubricated conformal sliding surfaces. The presence of pollutants such as debris and corrosive constituents has the potential to alter the contacting surfaces, would in turn affect the performance of revolute joints, and puts both reliability and durability of the systems at greater risks of failure. Key literature is identified and a review on the latest developments of the science of friction modelling is presented here. This review is based on a large volume of knowledge. Gaps in the relevant field have been identified to capitalise on for future developments. Therefore, this review will bring significant benefits to researchers, academics and industry professionals.

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Section: History Of Dynamic Modellingmentioning

confidence: 99%

A review of friction models in interacting joints for durability design

2017

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“…In the context of off-road vehicle simulations, terrain models fall into three categories of increasing complexity: rigid terrain where the main focus is an accurate surface profile [6][7][8][9], use of empirical relationships to find pressure and sinkage directly under the tire [10][11][12], or finite/discrete element approaches [13][14][15][16]. Any off-road vehicle dynamics simulation where the soil deforms considerably requires a terrain model that accurately reflects the deformation and response of the soil to all possible inputs of the tire in order to correctly simulate the response of the vehicle [17].…”

Section: Figure 2 Tire Geometry Used To Determine Collision Points Wmentioning

confidence: 99%

Compaction-Based Deformable Terrain Model as an Interface for Real-Time Vehicle Dynamics Simulations

Reid¹

2013

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“…However, numerical simulation method is more efficient than experiment method, and has been used increasingly in recent years. Finite element analysis and discrete element method are used to simulate tire-soil interaction by Li [2,3] and Shmulevich [5] to study tire's in soil separately, and ideal results of simulation are obtained.…”

Section: Introductionmentioning

confidence: 99%

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He¹,

Xia²,

Xu³

et al. 2015

Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015

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Abstract:To study the influence of local geometric feature on circular plate's sinking performance in the soil, radial and circumferential grooves are added at the bottom of circular plate separately. Smoothed particle hydrodynamics and finite element method(SPH/FEM) are used to simulate the sinking process. The results show that the maximum effective stress of soil and the sinkage of plate with circumferential groove are smaller than those of plate with radial groove. While comparing the sink simulating result of circumferential groove with depth of 1cm and 2cm, it is found that the sinkage of circular plate and the soil's maximum Von Mises stress is smaller when groove's depth is 1cm. The research provides benefit references to the design of mechanical part working in soft soil.

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State of the art modeling of soil–tillage interaction using discrete element method

Cited by 109 publications

References 30 publications

A review of friction models in interacting joints for durability design

A review of friction models in interacting joints for durability design

Compaction-Based Deformable Terrain Model as an Interface for Real-Time Vehicle Dynamics Simulations

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