Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface
The continuous development of computer technology has made it applicable in many scientific fields, including research into a wide range of processes in agricultural machines. It allows the simulation of very complex physical phenomena, including grain motion. A recently discovered discrete element...
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doaj-36b9b491dc5c43ebb396203cc73595632021-01-07T00:00:21ZengMDPI AGApplied Sciences2076-34172021-01-011146646610.3390/app11020466Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff SurfaceWłodzimierz Kęska0Jacek Marcinkiewicz1Łukasz Gierz2Żaneta Staszak3Jarosław Selech4Krzysztof Koszela5Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Street, 60-965 Poznan, PolandFaculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Street, 60-965 Poznan, PolandFaculty of Mechanical Engineering, Institute of Machine Design, Poznan University of Technology, Piotrowo 3 Street, 60-965 Poznan, PolandFaculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Street, 60-965 Poznan, PolandFaculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Street, 60-965 Poznan, PolandDepartment of Biosystems Engineering, Poznan University of Life Sciences, ul. Wojska Polskiego 50, 60-625 Poznan, PolandThe continuous development of computer technology has made it applicable in many scientific fields, including research into a wide range of processes in agricultural machines. It allows the simulation of very complex physical phenomena, including grain motion. A recently discovered discrete element method (DEM) is used for this purpose. It involves direct integration of equations of grain system motion under the action of various forces, the most important of which are contact forces. The method’s accuracy depends mainly on precisely developed mathematical models of contacts. The creation of such models requires empirical validation, an experiment that investigates the course of contact forces at the moment of the impact of the grains. To achieve this, specialised test stations equipped with force and speed sensors were developed. The correct selection of testing equipment and interpretation of results play a decisive role in this type of research. This paper focuses on the evaluation of the force sensor dynamic properties’ influence on the measurement accuracy of the course of the plant grain impact forces against a stiff surface. The issue was examined using the computer simulation method. A proprietary computer software with the main calculation module and data input procedures, which presents results in a graphic form, was used for calculations. From the simulation, graphs of the contact force and force signal from the sensor were obtained. This helped to clearly indicate the essence of the correct selection of parameters used in the tests of sensors, which should be characterised by high resonance frequency.https://www.mdpi.com/2076-3417/11/2/466grainDEMgrain impactcontact modelscontact forces |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Włodzimierz Kęska Jacek Marcinkiewicz Łukasz Gierz Żaneta Staszak Jarosław Selech Krzysztof Koszela |
spellingShingle |
Włodzimierz Kęska Jacek Marcinkiewicz Łukasz Gierz Żaneta Staszak Jarosław Selech Krzysztof Koszela Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface Applied Sciences grain DEM grain impact contact models contact forces |
author_facet |
Włodzimierz Kęska Jacek Marcinkiewicz Łukasz Gierz Żaneta Staszak Jarosław Selech Krzysztof Koszela |
author_sort |
Włodzimierz Kęska |
title |
Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface |
title_short |
Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface |
title_full |
Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface |
title_fullStr |
Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface |
title_full_unstemmed |
Simulation Verification of the Contact Parameter Influence on the Forces’ Course of Cereal Grain Impact against a Stiff Surface |
title_sort |
simulation verification of the contact parameter influence on the forces’ course of cereal grain impact against a stiff surface |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-01-01 |
description |
The continuous development of computer technology has made it applicable in many scientific fields, including research into a wide range of processes in agricultural machines. It allows the simulation of very complex physical phenomena, including grain motion. A recently discovered discrete element method (DEM) is used for this purpose. It involves direct integration of equations of grain system motion under the action of various forces, the most important of which are contact forces. The method’s accuracy depends mainly on precisely developed mathematical models of contacts. The creation of such models requires empirical validation, an experiment that investigates the course of contact forces at the moment of the impact of the grains. To achieve this, specialised test stations equipped with force and speed sensors were developed. The correct selection of testing equipment and interpretation of results play a decisive role in this type of research. This paper focuses on the evaluation of the force sensor dynamic properties’ influence on the measurement accuracy of the course of the plant grain impact forces against a stiff surface. The issue was examined using the computer simulation method. A proprietary computer software with the main calculation module and data input procedures, which presents results in a graphic form, was used for calculations. From the simulation, graphs of the contact force and force signal from the sensor were obtained. This helped to clearly indicate the essence of the correct selection of parameters used in the tests of sensors, which should be characterised by high resonance frequency. |
topic |
grain DEM grain impact contact models contact forces |
url |
https://www.mdpi.com/2076-3417/11/2/466 |
work_keys_str_mv |
AT włodzimierzkeska simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface AT jacekmarcinkiewicz simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface AT łukaszgierz simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface AT zanetastaszak simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface AT jarosławselech simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface AT krzysztofkoszela simulationverificationofthecontactparameterinfluenceontheforcescourseofcerealgrainimpactagainstastiffsurface |
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