Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Modelling roughness of road profiles on parallel tracks using roughness indicators
RISE, SP – Sveriges Tekniska Forskningsinstitut.ORCID iD: 0000-0002-6730-0214
Lund University, Sweden.
Chalmers University of Technology, Sweden.
2016 (English)In: International Journal of Vehicle Design, ISSN 0143-3369, E-ISSN 1741-5314, Vol. 70, no 2, p. 183-210Article in journal (Refereed) Published
Abstract [en]

The vertical road input is the most important load for durability assessments of vehicles. We focus on stochastic modelling of the parallel road profiles with the aim to find a simple but still accurate model for such bivariate records. A model is proposed that is locally Gaussian with randomly gamma distributed variances leading to a generalised Laplace distribution of the road profile. This Laplace model is paired with the ISO spectrum and is specified by only three parameters. Two of them can be estimated directly from a sequence of roughness indicators, such as IRI or ISO roughness coefficients. The third parameter, needed to define the cross-spectrum between the left and right road profiles, is estimated from the sample correlation. Explicit approximations for the expected fatigue damage for the proposed Laplace-ISO model are developed. The usefulness of the methods is validated using measured road profiles.

Place, publisher, year, edition, pages
Inderscience Enterprises Ltd. , 2016. Vol. 70, no 2, p. 183-210
Keywords [en]
Fatigue damage, Laplace distribution, Road irregularity, Road roughness, Vehicle durability
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-413DOI: 10.1504/IJVD.2016.074421OAI: oai:DiVA.org:ri-413DiVA, id: diva2:941939
Available from: 2016-06-23 Created: 2016-06-23 Last updated: 2019-06-17Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Johannesson, Pär

Search in DiVA

By author/editor
Johannesson, Pär
By organisation
SP – Sveriges Tekniska Forskningsinstitut
In the same journal
International Journal of Vehicle Design
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 30 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8