Mathematical model of material kinematics in an axial threshing unit
This paper presents a study of the movement of vegetal material through the threshing space of an axial threshing unit. The developed kinematical equations are based on a nonlinear law governing the non-uniform movement of the material on an uneven helical path between the rotor and concave-cage. Th...
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| Veröffentlicht in: | Computers and electronics in agriculture 2007-09, Vol.58 (2), p.93-99 |
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| creator | Miu, Petre I. Kutzbach, Heinz-Dieter |
| description | This paper presents a study of the movement of vegetal material through the threshing space of an axial threshing unit. The developed kinematical equations are based on a nonlinear law governing the non-uniform movement of the material on an uneven helical path between the rotor and concave-cage. These equations describe:
•
the characteristics of material trajectory (length, angle, pitch length, and number of material revolutions) as functions of longitudinal position along the rotor;
•
the components of material velocity.
The model was validated with experimental data from a large database obtained from laboratory testing.
The model can be used for practical analysis of material movement influence on threshing unit performance in terms of grain separation and damage, as well as for threshing unit design and process optimization. The kinematics model proved to be highly significant and useful for predictions. |
| doi_str_mv | 10.1016/j.compag.2007.04.002 |
| format | Article |
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•
the characteristics of material trajectory (length, angle, pitch length, and number of material revolutions) as functions of longitudinal position along the rotor;
•
the components of material velocity.
The model was validated with experimental data from a large database obtained from laboratory testing.
The model can be used for practical analysis of material movement influence on threshing unit performance in terms of grain separation and damage, as well as for threshing unit design and process optimization. The kinematics model proved to be highly significant and useful for predictions.</description><identifier>ISSN: 0168-1699</identifier><identifier>EISSN: 1872-7107</identifier><identifier>DOI: 10.1016/j.compag.2007.04.002</identifier><identifier>CODEN: CEAGE6</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Agronomy. Soil science and plant productions ; Biological and medical sciences ; Combine harvester ; combine harvesters ; Computer simulation ; Fundamental and applied biological sciences. Psychology ; Grain Kinematics ; Grain Separation ; kinematics ; mathematical models ; Modeling ; simulation models</subject><ispartof>Computers and electronics in agriculture, 2007-09, Vol.58 (2), p.93-99</ispartof><rights>2007 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-2ceaf6fd63db49a9730cb2131569f43d986b4548cfe67d7b17301608fb5ad8493</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.compag.2007.04.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18950829$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Miu, Petre I.</creatorcontrib><creatorcontrib>Kutzbach, Heinz-Dieter</creatorcontrib><title>Mathematical model of material kinematics in an axial threshing unit</title><title>Computers and electronics in agriculture</title><description>This paper presents a study of the movement of vegetal material through the threshing space of an axial threshing unit. The developed kinematical equations are based on a nonlinear law governing the non-uniform movement of the material on an uneven helical path between the rotor and concave-cage. These equations describe:
•
the characteristics of material trajectory (length, angle, pitch length, and number of material revolutions) as functions of longitudinal position along the rotor;
•
the components of material velocity.
The model was validated with experimental data from a large database obtained from laboratory testing.
The model can be used for practical analysis of material movement influence on threshing unit performance in terms of grain separation and damage, as well as for threshing unit design and process optimization. The kinematics model proved to be highly significant and useful for predictions.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Combine harvester</subject><subject>combine harvesters</subject><subject>Computer simulation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Grain Kinematics</subject><subject>Grain Separation</subject><subject>kinematics</subject><subject>mathematical models</subject><subject>Modeling</subject><subject>simulation models</subject><issn>0168-1699</issn><issn>1872-7107</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp9kFtLwzAYhoMoOKf_QLA3etf6pWlzuBFkHmHihe46pGmyZfYwk07035vRgXdCIOTN8x14EDrHkGHA9Hqd6b7dqGWWA7AMigwgP0ATzFmeMgzsEE0ixlNMhThGJyGsIb4FZxN096KGlWnV4LRqkravTZP0NomB8S4mH64bf0PiukTF872Lh5U3YeW6ZbLt3HCKjqxqgjnb31O0eLh_nz2l89fH59ntPNVE4CHNtVGW2pqSuiqEEoyArnJMcEmFLUgtOK2KsuDaGspqVuEIYArcVqWqeSHIFF2NfTe-_9yaMMjWBW2aRnWm3wZJAHhJMI1gMYLa9yF4Y-XGu1b5H4lB7pTJtRyVyZ0yCYWMymLZ5b6_ClGH9arTLvzVclECz3d7XIycVb1USx-ZxVsOOM5nAgsCkbgZCRN1fDnjZdDOdNrUzhs9yLp3_6_yC0ehjFw</recordid><startdate>20070901</startdate><enddate>20070901</enddate><creator>Miu, Petre I.</creator><creator>Kutzbach, Heinz-Dieter</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>FR3</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20070901</creationdate><title>Mathematical model of material kinematics in an axial threshing unit</title><author>Miu, Petre I. ; Kutzbach, Heinz-Dieter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-2ceaf6fd63db49a9730cb2131569f43d986b4548cfe67d7b17301608fb5ad8493</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Combine harvester</topic><topic>combine harvesters</topic><topic>Computer simulation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Grain Kinematics</topic><topic>Grain Separation</topic><topic>kinematics</topic><topic>mathematical models</topic><topic>Modeling</topic><topic>simulation models</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Miu, Petre I.</creatorcontrib><creatorcontrib>Kutzbach, Heinz-Dieter</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Computers and electronics in agriculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Miu, Petre I.</au><au>Kutzbach, Heinz-Dieter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mathematical model of material kinematics in an axial threshing unit</atitle><jtitle>Computers and electronics in agriculture</jtitle><date>2007-09-01</date><risdate>2007</risdate><volume>58</volume><issue>2</issue><spage>93</spage><epage>99</epage><pages>93-99</pages><issn>0168-1699</issn><eissn>1872-7107</eissn><coden>CEAGE6</coden><abstract>This paper presents a study of the movement of vegetal material through the threshing space of an axial threshing unit. The developed kinematical equations are based on a nonlinear law governing the non-uniform movement of the material on an uneven helical path between the rotor and concave-cage. These equations describe:
•
the characteristics of material trajectory (length, angle, pitch length, and number of material revolutions) as functions of longitudinal position along the rotor;
•
the components of material velocity.
The model was validated with experimental data from a large database obtained from laboratory testing.
The model can be used for practical analysis of material movement influence on threshing unit performance in terms of grain separation and damage, as well as for threshing unit design and process optimization. The kinematics model proved to be highly significant and useful for predictions.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.compag.2007.04.002</doi><tpages>7</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Agronomy. Soil science and plant productions Biological and medical sciences Combine harvester combine harvesters Computer simulation Fundamental and applied biological sciences. Psychology Grain Kinematics Grain Separation kinematics mathematical models Modeling simulation models |
| title | Mathematical model of material kinematics in an axial threshing unit |
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