Measurement of soil-tire interface stresses

dc.contributor.advisor Matthew J. Darr
dc.contributor.author Roth, Jonathan
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-08-11T18:02:38.000
dc.date.accessioned 2020-06-30T02:34:12Z
dc.date.available 2020-06-30T02:34:12Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2010
dc.date.embargo 2013-06-05
dc.date.issued 2010-01-01
dc.description.abstract <p>Agricultural energy usage is an important topic among agricultural industry producers, manufacturers and regulators. Zoz and Grisso (2003) stated that prior research shows between 20 and 55% of tractor energy is lost at the soil-tire interface. This transfer of power between axle and drawbar has been identified as one of the greatest inefficiencies in agricultural field operations. Understanding the stresses at the soil-tire interface would provide insight into the current state of tire traction development, data for soil-tire interface discrete and finite-element models, and information for future tire designs.</p> <p>This paper presents a measurement system to quantify the shear and normal stresses at the soil-tire interface of an agricultural tractor tire, allowing associations to be made concerning the distributions of these stresses across and along the tire footprint. Shear and normal stress measurement systems were developed in the laboratory and the normal stress sensing system proven in the field. Additionally, a dedicated data acquisition system was also developed and proven in the in-field environment. Test results show the system capabilities as well as information on the challenges of drawing general, consistent conclusions concerning the stresses developed between a tire and the soil at field working speeds in agricultural soils.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/11226/
dc.identifier.articleid 2283
dc.identifier.contextkey 2807481
dc.identifier.doi https://doi.org/10.31274/etd-180810-939
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/11226
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/25432
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/11226/Roth_iastate_0097M_11005.pdf|||Fri Jan 14 18:45:31 UTC 2022
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords measurement system
dc.subject.keywords soil
dc.subject.keywords soil tire interface
dc.subject.keywords soil-tire interface
dc.subject.keywords tires
dc.subject.keywords traction
dc.title Measurement of soil-tire interface stresses
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
thesis.degree.level thesis
thesis.degree.name Master of Science
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