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dc.contributor.authorLouhghalam, Arghavan
dc.contributor.authorTootkaboni, Mazdak
dc.contributor.authorUlm, Franz-Josef
dc.date.accessioned2017-07-12T18:44:54Z
dc.date.available2017-07-12T18:44:54Z
dc.date.issued2015-11
dc.identifier.issn0733-9399
dc.identifier.issn1943-7889
dc.identifier.urihttp://hdl.handle.net/1721.1/110690
dc.description.abstractThe energy dissipated in a vehicle suspension system due to road roughness affects rolling resistance and the resulting fuel consumption and greenhouse gas emission. The key parameters driving this dissipation mechanism are identified via dimensional analysis. A mechanistic model is proposed that relates vehicle dynamic properties and road roughness statistics to vehicle dissipated energy and thus fuel consumption. A scaling relationship between the dissipated energy and the most commonly used road roughness index, the International Roughness Index (IRI), is also established. It is shown that the dissipated energy scales with IRI squared and scaling of dissipation with vehicle speed V depends on road waviness number w in the form of V[superscript w−2]. The effect of marginal probability distribution of the road roughness profile on dissipated energy is examined. It is shown that although the marginal distribution of the road profile does not affect the identified scaling relationships, the multiplicative factor in these relationships does change from one distribution to another. As an example of practical application, the model is calibrated with the empirical HDM-4 model for different vehicle classes.en_US
dc.language.isoen_US
dc.publisherAmerican Society of Civil Engineers (ASCE)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1061/(asce)em.1943-7889.0000944en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceOther repositoryen_US
dc.titleRoughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scalingen_US
dc.typeArticleen_US
dc.identifier.citationLouhghalam, Arghavan, Mazdak Tootkaboni, and Franz-Josef Ulm. “Roughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scaling.” Journal of Engineering Mechanics 141.11 (2015): 04015046.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.mitauthorLouhghalam, Arghavan
dc.contributor.mitauthorUlm, Franz-Josef
dc.relation.journalJournal of Engineering Mechanicsen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsLouhghalam, Arghavan; Tootkaboni, Mazdak; Ulm, Franz-Josefen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-6581-5986
dc.identifier.orcidhttps://orcid.org/0000-0002-7089-8069
mit.licenseOPEN_ACCESS_POLICYen_US


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