Optimization of a convex pattern surface for sliding wear reduction based on a definitive screening design and discrete element method

Yunpeng Yan*, Rudy Helmons, Craig Wheeler, Dingena Schott

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
44 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)1094-1110
JournalPowder Technology
Volume394
DOIs
Publication statusPublished - 2021

Keywords

  • Calibration
  • Convex pattern surface
  • Definitive screening design
  • Discrete element method
  • Sliding wear

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