Experimental determination of the segregation process using computer tomography

Modelling methods such as DEM and CFD are increasingly used for developing high efficient combine cleaning systems. For this purpose it is necessary to verify the complex segregation and separation processes in the combine cleaning system. One way is to determine the segregation and separation funct...

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Bibliographic Details
Published inLandtechnik Vol. 71; no. 4; pp. 131 - 138
Main Authors Konstantin Beckmann, Michael Schwarz, Stefan Böttinger, Ralf Bölling, Ludger Frerichs, Markus Eberhorn
Format Journal Article
LanguageGerman
Published Kuratorium für Technik und Bauwesen in der Landwirtschaft e. V 01.07.2016
Subjects
combine cleaning system
combine harvester
computer tomography
segregation
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Summary:Modelling methods such as DEM and CFD are increasingly used for developing high efficient combine cleaning systems. For this purpose it is necessary to verify the complex segregation and separation processes in the combine cleaning system. One way is to determine the segregation and separation function using 3D computer tomography (CT). This method makes it possible to visualize and analyse the movement behaviour of the components of the mixture during the segregation and separation process as well as the derivation of descriptive process parameters. A mechanically excited miniature test rig was designed and built at the company CLAAS Selbstfahrende Erntemaschinen GmbH to achieve this aim. The investigations were carried out at the Fraunhofer Institute for Integrated Circuits IIS. Through the evaluation of the recorded images the segregation process is described visually. A more detailed analysis enabled the development of segregation and separation function based on the different densities of grain and material other than grain.
ISSN:0023-8082
DOI:10.15150/lt.2016.3131