Title | Roughness-Induced Vehicle Energy Dissipation: Statistical Analysis and Scaling |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Louhghalam A, Tootkaboni M, Ulm F-J |
Journal | Journal of Engineering Mechanics |
Volume | 141 |
Issue | 11 |
Pagination | Number: 04015046 |
Date Published | Nov-2015 |
ISSN | 0733-9399 |
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 |
DOI | 10.1061/(ASCE)EM.1943-7889.0000944 |
Short Title | J. Eng. Mech. |