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    Roughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scaling

    Source: Journal of Engineering Mechanics:;2015:;Volume ( 141 ):;issue: 011
    Author:
    Arghavan Louhghalam
    ,
    Mazdak Tootkaboni
    ,
    Franz-Josef Ulm
    DOI: 10.1061/(ASCE)EM.1943-7889.0000944
    Publisher: American Society of Civil Engineers
    Abstract: The 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 Vw−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.
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      Roughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scaling

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4240668
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    • Journal of Engineering Mechanics

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    contributor authorArghavan Louhghalam
    contributor authorMazdak Tootkaboni
    contributor authorFranz-Josef Ulm
    date accessioned2017-12-16T09:15:51Z
    date available2017-12-16T09:15:51Z
    date issued2015
    identifier other%28ASCE%29EM.1943-7889.0000944.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4240668
    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 Vw−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.
    publisherAmerican Society of Civil Engineers
    titleRoughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scaling
    typeJournal Paper
    journal volume141
    journal issue11
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)EM.1943-7889.0000944
    treeJournal of Engineering Mechanics:;2015:;Volume ( 141 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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