Print Email Facebook Twitter Optimization of a convex pattern surface for sliding wear reduction based on a definitive screening design and discrete element method Title Optimization of a convex pattern surface for sliding wear reduction based on a definitive screening design and discrete element method Author Yan, Y. (TU Delft Transport Engineering and Logistics) Helmons, R.L.J. (TU Delft Offshore and Dredging Engineering) Wheeler, Craig (University of Newcastle, Australia) Schott, D.L. (TU Delft Transport Engineering and Logistics) Date 2021 Abstract A previous study revealed that a convex pattern surface can reduce sliding wear of a transfer chute. A convex pattern surface is a flat surface outfitted with a pattern of convexes defined by five parameters. A three-level definitive screening design (DSD) method combined with discrete element method (DEM) is used to investigate the influence of the five parameters and two operational conditions on the sliding wear. Two flow regimes are distinguished, namely continuous and discontinuous flow regimes, and both flow regimes can significantly reduce the sliding wear. The particle velocity and angular velocity profiles verify the guiding and rolling effect of the convex pattern on the motion of particles. A regression model fitted based on the DSD indicates that three main factors and one interaction have significant influence on the sliding wear. Subject CalibrationConvex pattern surfaceDefinitive screening designDiscrete element methodSliding wear To reference this document use: http://resolver.tudelft.nl/uuid:22e60072-4d31-49d4-9f0b-63658f9994dc DOI https://doi.org/10.1016/j.powtec.2021.09.041 ISSN 0032-5910 Source Powder Technology, 394, 1094-1110 Part of collection Institutional Repository Document type journal article Rights © 2021 Y. Yan, R.L.J. Helmons, Craig Wheeler, D.L. Schott Files PDF 1_s2.0_S0032591021008342_main.pdf 1.53 MB Close viewer /islandora/object/uuid:22e60072-4d31-49d4-9f0b-63658f9994dc/datastream/OBJ/view