Review of Resistive Force Models for Earthmoving Processes

Blouin, Stéphane; Hemami, Ahmad; Lipsett, M.

doi:10.1061/(asce)0893-1321(2001)14:3(102)

Cited by 70 publications

(52 citation statements)

References 17 publications

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“…The excavation process with a tool can be categorized as penetration, cutting, and scooping processes [4,5]. In general terms, penetration is the insertion of the tool into the medium; and cutting is the lateral movement of the tool, generally at a constant depth.…”

Section: Formation Resistive Forcesmentioning

confidence: 99%

“…Hemami and Hassani [8] listed 32 parameters (tool, medium, operation, environment, and tool-medium related) that were considered in the cutting and excavation models by different researchers. The high frequency tool parameter was the tool width (w), while high frequency soil parameters included cohesion (c), angle of internal friction (φ) and bulk density (γ); and high frequency operating parameters included cutting angle (α), tool velocity (v), depth of cut (d), and surcharge (q) [4].The basic assumptions in almost all the models are the homogeneity, continuity, and isotropy of the medium in front of the tool [9][10][11][12]. Blasted or fragmented rock, as found in many mining operations, can be considered as homogeneous and continuous material when excavated with narrow tools [13].…”

Section: Formation Resistive Forcesmentioning

confidence: 99%

“…Forces f 3 and f 4 were modeled based on the forces defined by Balovnev [9] model using the passive earth pressure theory. A numerical model was created to calculate the forces on the dipper while it moves through the muck pile.…”

Section: Shovel Resistance Forces and Modelingmentioning

confidence: 99%

See 2 more Smart Citations

Cable Shovel Stress & Fatigue Failure Modeling - Causes and Solution Strategies Review

Raza

Frimpong²

2013

J Powder Metall Min

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Section: Formation Resistive Forcesmentioning

confidence: 99%

Section: Formation Resistive Forcesmentioning

confidence: 99%

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Cable Shovel Stress & Fatigue Failure Modeling - Causes and Solution Strategies Review

Raza

Frimpong²

2013

J Powder Metall Min

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“…This two-dimensional modeling assumes that digging activities are conducted for wide bucket type. On the other hand, threedimensional modeling is usually used for digging activities with a narrow cut [13].…”

Section: Resistive Forcementioning

confidence: 99%

Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method

et al. 2018

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Excavator is mostly used for mining and construction. This heavy equipment, widely known as a backhoe, is a digging machine commonly used for dredging the mining materials, digging and leveling the soil, dredging the river, removing the road and demolition. Excavator has bucket teeth, component that frequently undergoes a change. The replacement of bucket teeth is performed due to its low usage time and many failure experiences such as wear, bend, crack and facture during the use. To prevent the occurrence of the failures, a structural analysis on bucket teeth is necessarily conducted. The analysis was conducted to find the stress distribution on bucket teeth from the rake angle effect during the excavation. The analysis was performed using finite element method by static loading and two-dimensional modeling to determine digging and resistive force in bucket teeth. Based on the analysis, it was obtained the stress distribution and maximum value of von misses occurring in the bucket teeth from the rake angle effect. The maximum stress, obtained from the analysis results, was then compared to the allowable stress of the bucket teeth material. The results showed that the materials used were in safe limits and had small potential for experiencing failure as well.

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“…Many formulations are proposed, but they have not been verified and are not in accord with each other [Hemami et al (1994c)]. A good review and comparison of the various proposed theories for formulating the earthmoving forces can be found in Blouin et al (2001).…”

Section: Relevant Research Work On Excavation Automationmentioning

confidence: 99%

An Overview of Autonomous Loading of Bulk Material

Hemami¹,

Hassani²

2009

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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Autonomous loading implies a fully automated scenario in which automated excavating machines, such as front-loaders, load themselves from a heap of bulk material and deliver to the dumping site. The process comprises all the functions of loading, navigating, obstacle detection and avoidance and unloading to be automated and controlled by a supervisory computer. Autonomous loading benefits a number of industries such as construction and mining, from economical view point as well as other concerns like operators safety when the workplace is not hazard free. Despite all the benefits and despite considerable amount of research on the subject, there are no commercially available systems that can be purchased and put to work. In addition to a breakdown of all the tasks that need to be automated and the difficulties involved, this paper reviews and reports the various research and/or development activities that have been carried out during the past two decades on the subject.

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Review of Resistive Force Models for Earthmoving Processes

Cited by 70 publications

References 17 publications

Cable Shovel Stress & Fatigue Failure Modeling - Causes and Solution Strategies Review

Cable Shovel Stress & Fatigue Failure Modeling - Causes and Solution Strategies Review

Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method

An Overview of Autonomous Loading of Bulk Material

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