Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters
The filling behavior of Fe-Ni-Mo steel powder for sintered machine parts is simulated using our original DEM (Discrete Element Method) code based on FDPS (Framework for Developing Particle Simulator). The difference between the simulated and experimental apparent densities after self-weight filling...
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Japanese Society of Tribologists
2021
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oai:doaj.org-article:6c5732dc9abd468580c9b66c45fbb8242021-11-05T09:30:56ZImprovement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters1881-219810.2474/trol.16.16https://doaj.org/article/6c5732dc9abd468580c9b66c45fbb8242021-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/16/1/16_16/_pdf/-char/enhttps://doaj.org/toc/1881-2198The filling behavior of Fe-Ni-Mo steel powder for sintered machine parts is simulated using our original DEM (Discrete Element Method) code based on FDPS (Framework for Developing Particle Simulator). The difference between the simulated and experimental apparent densities after self-weight filling is only -6.7%, which is a significantly higher prediction accuracy than the prior study. This result is obtained by only calculating the repulsive force, viscous damping, friction force and gravity using the actual Young's modulus. This is due to using the experimental friction coefficients and the upper limit setting of the distance between the particle surfaces based on the experimental study. This method can be used to simulate the porosity, especially the low density region, in the actual filling process.Naoki YashiroKouya OohiraNatsuko SugimuraHitoshi WashizuJapanese Society of Tribologistsarticlesteel powderfilling behaviorhertzian contactfriction characteristicsdiscrete element method (dem)apparent densityPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 16, Iss 1, Pp 16-23 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
steel powder filling behavior hertzian contact friction characteristics discrete element method (dem) apparent density Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 |
| spellingShingle |
steel powder filling behavior hertzian contact friction characteristics discrete element method (dem) apparent density Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Naoki Yashiro Kouya Oohira Natsuko Sugimura Hitoshi Washizu Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| description |
The filling behavior of Fe-Ni-Mo steel powder for sintered machine parts is simulated using our original DEM (Discrete Element Method) code based on FDPS (Framework for Developing Particle Simulator). The difference between the simulated and experimental apparent densities after self-weight filling is only -6.7%, which is a significantly higher prediction accuracy than the prior study. This result is obtained by only calculating the repulsive force, viscous damping, friction force and gravity using the actual Young's modulus. This is due to using the experimental friction coefficients and the upper limit setting of the distance between the particle surfaces based on the experimental study. This method can be used to simulate the porosity, especially the low density region, in the actual filling process. |
| format |
article |
| author |
Naoki Yashiro Kouya Oohira Natsuko Sugimura Hitoshi Washizu |
| author_facet |
Naoki Yashiro Kouya Oohira Natsuko Sugimura Hitoshi Washizu |
| author_sort |
Naoki Yashiro |
| title |
Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| title_short |
Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| title_full |
Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| title_fullStr |
Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| title_full_unstemmed |
Improvement of Discrete Element Simulation Accuracy of Steel Powder Filling Behavior by Optimization of Contact and Friction Parameters |
| title_sort |
improvement of discrete element simulation accuracy of steel powder filling behavior by optimization of contact and friction parameters |
| publisher |
Japanese Society of Tribologists |
| publishDate |
2021 |
| url |
https://doaj.org/article/6c5732dc9abd468580c9b66c45fbb824 |
| work_keys_str_mv |
AT naokiyashiro improvementofdiscreteelementsimulationaccuracyofsteelpowderfillingbehaviorbyoptimizationofcontactandfrictionparameters AT kouyaoohira improvementofdiscreteelementsimulationaccuracyofsteelpowderfillingbehaviorbyoptimizationofcontactandfrictionparameters AT natsukosugimura improvementofdiscreteelementsimulationaccuracyofsteelpowderfillingbehaviorbyoptimizationofcontactandfrictionparameters AT hitoshiwashizu improvementofdiscreteelementsimulationaccuracyofsteelpowderfillingbehaviorbyoptimizationofcontactandfrictionparameters |
| _version_ |
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