Friction Coefficients for Dried Distillers Grains on Eight Structural Surfaces Bern, Carl Pflum, Spencer Schumacher, Paul Brumm, Thomas Brumm, Thomas
dc.contributor.department Agricultural and Biosystems Engineering 2018-02-15T03:18:32.000 2020-06-29T22:41:15Z 2020-06-29T22:41:15Z Wed Jan 01 00:00:00 UTC 2014 2014-10-21 2014-01-01
dc.description.abstract <p>Static and dynamic coefficients of friction on structural surfaces play important roles in the power requirements and material selection for equipment used in handling and storing agricultural commodities. However, friction data on dried distillers grains with solubles (DDGS) is limited. Further, lack of a standardized method for determining friction coefficient on grain handling materials presents a challenge. This article describes studies carried out to determine the static coefficient of friction (µs) and dynamic coefficient of friction (µd) for corn DDGS at 10%, 8.2%, and 6.5% moisture content (all moistures are % wet basis) on eight structural surfaces: High-Density Polyethylene (HDPE), Ultra-High Molecular Weight Polyethylene (UHMWPE), 20-gage aluminum, galvanized steel, mild steel, 18-gage stainless steel, poplar wood, and pine wood. For all structural surfaces and DDGS moistures tested, µs lies in the range from 0.20 to 0.43 and µd in the range from 0.17 to 0.35. The µs values were higher than corresponding µd values for all moisture levels. In general, µs and µd increased linearly with increasing moisture for metal and wood surfaces. Pine wood had the highest µs at all moisture levels and the highest µd at 8.2% and 10% moisture. HDPE had the lowest µs and µd at 10% moisture followed by the values for UHMWPE. For these surfaces the µs and µd remained the same or decreased with increasing DDGS moisture. Among the metal surfaces, galvanized steel and aluminum exhibited similar coefficient of friction characteristics however galvanized steel had the lowest µs and µd at 6.5% and 8.2% moisture.</p>
dc.description.comments <p>This article is from <em>Applied Engineering in Agriculture</em> 30 (2014): 673–678, doi:<a href="" target="_blank">10.13031/aea.30.10453</a>. Posted with permission.</p>
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dc.identifier archive/
dc.identifier.articleid 1895
dc.identifier.contextkey 6266049
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/609
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 01:15:32 UTC 2022
dc.source.uri 10.13031/aea.30.10453
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords DDGS
dc.subject.keywords Dynamic coefficient of friction
dc.subject.keywords Static coefficient of friction
dc.title Friction Coefficients for Dried Distillers Grains on Eight Structural Surfaces
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isAuthorOfPublication 324f871a-aa6e-4648-b2bd-b87a45302e6f
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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