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Simulation of soil forces on an aerway shatter tine using discrete element method
Authors: J. Mak, Y. Chen and N. McLaughlin
Identifier: CSBE11105
Download file: https://library.csbe-scgab.ca/docs/meetings/2011/CSBE11105.pdf
Published in: CSBE-SCGAB Technical Conferences » AGM Winnipeg 2011
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Description: Soil disturbances from an AerWay shatter tine was modeled using a commercial software called PFC3D (Particle Flow Code in Three Dimensions) based on the discrete element method (DEM). The objective of this study was to generate a soil-tool model, calibrate and validate the model with field and literature data, and generate predictions on the required draft and vertical forces to pull the shatter tine. The DEM model predicted and validated the required draft and vertical forces of the shatter tine at various depths. These predictions are based on the kinematics of the assembly according to Newton?s laws of motion. The calibrated soil had a relative error of 7.7% for a silty-clay soil using the ball stiffness (kn/ks) of 1 x 104 N/m and bond stiffness (/) of 1 x 103 Pa/m. The simulated results were compared to literature data and had a relative error of 13.4-31.2% within the depth range of 100-150 mm and lower depths were found to have a smaller relative error. The predicted vertical force was found to linearly increase with depth until the force plateau at around 700 N per shatter tine. The described methodology was validated and showed a good correlation between the draft forces from literature and the DEM simulations. The correlation suggests that DEM modeling is a very promising method to simulate highly variable soil properties, nonlinear dynamic behaviour of soil, and complex phenomena between the soil and tool surfaces.
Keywords: Discrete element method, PFC3D, Tine, Soil, Force, Depth
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Citation: J. Mak, Y. Chen and N. McLaughlin. 2013. Simulation of soil forces on an aerway shatter tine using discrete element method. CSBE/SCGAB 2011 Annual Conference, Inn at the Forks, Winnipeg, Mb. 10-13 July 2011
Volume:
Issue:
Pages -
Contributor:
Date: juil-11
Technical field: Soil and Water Systems Engineering
Conference name: CSBE/SCGAB 2011 Annual Conference, Inn at the Forks, Winnipeg, Mb. 10-13 July 2011
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type: Conference Proceeding
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Soil disturbances from an AerWay shatter tine was modeled using a commercial software called PFC3D (Particle Flow Code in Three Dimensions) based on the discrete element method (DEM). The objective of this study was to generate a soil-tool model, calibrate and validate the model with field and literature data, and generate predictions on the required draft and vertical forces to pull the shatter tine. The DEM model predicted and validated the required draft and vertical forces of the shatter tine at various depths. These predictions are based on the kinematics of the assembly according to Newton?s laws of motion. The calibrated soil had a relative error of 7.7% for a silty-clay soil using the ball stiffness (kn/ks) of 1 x 104 N/m and bond stiffness (/) of 1 x 103 Pa/m. The simulated results were compared to literature data and had a relative error of 13.4-31.2% within the depth range of 100-150 mm and lower depths were found to have a smaller relative error. The predicted vertical force was found to linearly increase with depth until the force plateau at around 700 N per shatter tine. The described methodology was validated and showed a good correlation between the draft forces from literature and the DEM simulations. The correlation suggests that DEM modeling is a very promising method to simulate highly variable soil properties, nonlinear dynamic behaviour of soil, and complex phenomena between the soil and tool surfaces.
Keywords: Discrete element method, PFC3D, Tine, Soil, Force, Depth
Résumé:
Mots-clés:
Citation: J. Mak, Y. Chen and N. McLaughlin. 2013. Simulation of soil forces on an aerway shatter tine using discrete element method. CSBE/SCGAB 2011 Annual Conference, Inn at the Forks, Winnipeg, Mb. 10-13 July 2011
Volume:
Issue:
Pages -
Contributor:
Date: juil-11
Technical field: Soil and Water Systems Engineering
Conference name: CSBE/SCGAB 2011 Annual Conference, Inn at the Forks, Winnipeg, Mb. 10-13 July 2011
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type: Conference Proceeding
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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