Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage

Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clod...
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Autor*in:	Wang Yang [verfasserIn] Xiong Xiao [verfasserIn] Ronghui Pan [verfasserIn] Shengyuan Guo [verfasserIn] Jian Yang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics

Übergeordnetes Werk:	In: Agriculture - MDPI AG, 2012, 13(2023), 1850, p 1850
Übergeordnetes Werk:	volume:13 ; year:2023 ; number:1850, p 1850

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/agriculture13091850

Katalog-ID:	DOAJ093474008

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520			\|a Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design.
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allfields	10.3390/agriculture13091850 doi (DE-627)DOAJ093474008 (DE-599)DOAJb7bae27990114d70a284d4380aab3769 DE-627 ger DE-627 rakwb eng S1-972 Wang Yang verfasserin aut Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design. deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General) Xiong Xiao verfasserin aut Ronghui Pan verfasserin aut Shengyuan Guo verfasserin aut Jian Yang verfasserin aut In Agriculture MDPI AG, 2012 13(2023), 1850, p 1850 (DE-627)686948173 (DE-600)2651678-0 20770472 nnns volume:13 year:2023 number:1850, p 1850 https://doi.org/10.3390/agriculture13091850 kostenfrei https://doaj.org/article/b7bae27990114d70a284d4380aab3769 kostenfrei https://www.mdpi.com/2077-0472/13/9/1850 kostenfrei https://doaj.org/toc/2077-0472 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 1850, p 1850
spelling	10.3390/agriculture13091850 doi (DE-627)DOAJ093474008 (DE-599)DOAJb7bae27990114d70a284d4380aab3769 DE-627 ger DE-627 rakwb eng S1-972 Wang Yang verfasserin aut Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design. deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General) Xiong Xiao verfasserin aut Ronghui Pan verfasserin aut Shengyuan Guo verfasserin aut Jian Yang verfasserin aut In Agriculture MDPI AG, 2012 13(2023), 1850, p 1850 (DE-627)686948173 (DE-600)2651678-0 20770472 nnns volume:13 year:2023 number:1850, p 1850 https://doi.org/10.3390/agriculture13091850 kostenfrei https://doaj.org/article/b7bae27990114d70a284d4380aab3769 kostenfrei https://www.mdpi.com/2077-0472/13/9/1850 kostenfrei https://doaj.org/toc/2077-0472 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 1850, p 1850
allfields_unstemmed	10.3390/agriculture13091850 doi (DE-627)DOAJ093474008 (DE-599)DOAJb7bae27990114d70a284d4380aab3769 DE-627 ger DE-627 rakwb eng S1-972 Wang Yang verfasserin aut Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design. deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General) Xiong Xiao verfasserin aut Ronghui Pan verfasserin aut Shengyuan Guo verfasserin aut Jian Yang verfasserin aut In Agriculture MDPI AG, 2012 13(2023), 1850, p 1850 (DE-627)686948173 (DE-600)2651678-0 20770472 nnns volume:13 year:2023 number:1850, p 1850 https://doi.org/10.3390/agriculture13091850 kostenfrei https://doaj.org/article/b7bae27990114d70a284d4380aab3769 kostenfrei https://www.mdpi.com/2077-0472/13/9/1850 kostenfrei https://doaj.org/toc/2077-0472 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 1850, p 1850
allfieldsGer	10.3390/agriculture13091850 doi (DE-627)DOAJ093474008 (DE-599)DOAJb7bae27990114d70a284d4380aab3769 DE-627 ger DE-627 rakwb eng S1-972 Wang Yang verfasserin aut Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design. deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General) Xiong Xiao verfasserin aut Ronghui Pan verfasserin aut Shengyuan Guo verfasserin aut Jian Yang verfasserin aut In Agriculture MDPI AG, 2012 13(2023), 1850, p 1850 (DE-627)686948173 (DE-600)2651678-0 20770472 nnns volume:13 year:2023 number:1850, p 1850 https://doi.org/10.3390/agriculture13091850 kostenfrei https://doaj.org/article/b7bae27990114d70a284d4380aab3769 kostenfrei https://www.mdpi.com/2077-0472/13/9/1850 kostenfrei https://doaj.org/toc/2077-0472 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 1850, p 1850
allfieldsSound	10.3390/agriculture13091850 doi (DE-627)DOAJ093474008 (DE-599)DOAJb7bae27990114d70a284d4380aab3769 DE-627 ger DE-627 rakwb eng S1-972 Wang Yang verfasserin aut Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design. deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General) Xiong Xiao verfasserin aut Ronghui Pan verfasserin aut Shengyuan Guo verfasserin aut Jian Yang verfasserin aut In Agriculture MDPI AG, 2012 13(2023), 1850, p 1850 (DE-627)686948173 (DE-600)2651678-0 20770472 nnns volume:13 year:2023 number:1850, p 1850 https://doi.org/10.3390/agriculture13091850 kostenfrei https://doaj.org/article/b7bae27990114d70a284d4380aab3769 kostenfrei https://www.mdpi.com/2077-0472/13/9/1850 kostenfrei https://doaj.org/toc/2077-0472 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 1850, p 1850
language	English
source	In Agriculture 13(2023), 1850, p 1850 volume:13 year:2023 number:1850, p 1850
sourceStr	In Agriculture 13(2023), 1850, p 1850 volume:13 year:2023 number:1850, p 1850
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topic_facet	deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics Agriculture (General)
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container_title	Agriculture
authorswithroles_txt_mv	Wang Yang @@aut@@ Xiong Xiao @@aut@@ Ronghui Pan @@aut@@ Shengyuan Guo @@aut@@ Jian Yang @@aut@@
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However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. 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callnumber-first	S - Agriculture
author	Wang Yang
spellingShingle	Wang Yang misc S1-972 misc deep vertical rotary tillage misc spiral cutter–soil interaction misc smoothed particle hydrodynamics misc Agriculture (General) Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage
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topic_title	S1-972 Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage deep vertical rotary tillage spiral cutter–soil interaction smoothed particle hydrodynamics
topic	misc S1-972 misc deep vertical rotary tillage misc spiral cutter–soil interaction misc smoothed particle hydrodynamics misc Agriculture (General)
topic_unstemmed	misc S1-972 misc deep vertical rotary tillage misc spiral cutter–soil interaction misc smoothed particle hydrodynamics misc Agriculture (General)
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title	Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage
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title_full	Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage
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title_sort	numerical simulation of spiral cutter–soil interaction in deep vertical rotary tillage
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title_auth	Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage
abstract	Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design.
abstractGer	Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design.
abstract_unstemmed	Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutting resistance and vibration of the cutter are substantial. To reveal the reasons behind this, a simulation model of a spiral cutter–soil system was developed using Smoothed Particle Hydrodynamics (SPH). Using this model, the working process and force of a spiral cutter were thoroughly investigated. The results show that soil fragmentation, swelling, and loosening primarily result from the combined effects of the separation cutting, velocity difference cutting, auxiliary cutting, and the spiral blade’s lifting effect on soil. The reasons for the larger clods are that topsoil furrow slices are larger and the velocity difference cutting is insufficient. The substantial resistance of the cutter is mainly due to the greater resistance of the blade and the bottom edge, and too many blades cutting the soil simultaneously. Furthermore, due to the asymmetry of the cutter’s structure, the resistance’s amplitude reaches 1963.5 N, which causes the cutter’s large vibration. These findings would be an important basis for optimal cutter design.
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title_short	Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage
url	https://doi.org/10.3390/agriculture13091850 https://doaj.org/article/b7bae27990114d70a284d4380aab3769 https://www.mdpi.com/2077-0472/13/9/1850 https://doaj.org/toc/2077-0472
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Numerical Simulation of Spiral Cutter–Soil Interaction in Deep Vertical Rotary Tillage

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