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Fatigue relevant road surface statistics

Bogsjö, Klas LU and Forsen, A (2003) 18th IAVSD Symposium In Vehicle System Dynamics 41. p.724-733
Abstract
Road roughness is a major source of vehicle fatigue. To improve the understanding of vehicle durability, statistical methods are applied to characterise measured road profiles. Different statistical road models are used to generate corresponding synthetic road profiles. Vehicle fatigue is assessed utilising a simple quarter-vehicle model in combination with the Palmgren-Miner damage hypothesis, Basquin's relation and Rainflow counting. Several road realisations (Monte-Carlo simulation) provide an estimate of the expected fatigue damage. The results suggest that actual roads cause more damage than synthetic Gaussian roads, possibly due to occasional road transients (bumps and holes), causing large loads on the vehicle. Thus, a road model... (More)
Road roughness is a major source of vehicle fatigue. To improve the understanding of vehicle durability, statistical methods are applied to characterise measured road profiles. Different statistical road models are used to generate corresponding synthetic road profiles. Vehicle fatigue is assessed utilising a simple quarter-vehicle model in combination with the Palmgren-Miner damage hypothesis, Basquin's relation and Rainflow counting. Several road realisations (Monte-Carlo simulation) provide an estimate of the expected fatigue damage. The results suggest that actual roads cause more damage than synthetic Gaussian roads, possibly due to occasional road transients (bumps and holes), causing large loads on the vehicle. Thus, a road model being the sum of Gaussian 'noise' and transient events is suggested (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
vehicle fatigue, road roughness, vehicle durability, road profiles, road surface statistics, statistical road models, quarter vehicle model, Basquin relation, Palmgren-Miner damage hypothesis, transient events, Gaussian noise, synthetic Gaussian roads, Rainflow counting, Monte Carlo simulation
in
Vehicle System Dynamics
volume
41
pages
724 - 733
publisher
Swets & Zeitlinger
conference name
18th IAVSD Symposium
external identifiers
  • wos:000225095100074
ISSN
0042-3114
language
English
LU publication?
yes
id
f8c254e5-4a42-461b-b4c1-61d61af1f77e (old id 614917)
date added to LUP
2007-11-26 17:43:37
date last changed
2018-05-29 10:21:09
@inproceedings{f8c254e5-4a42-461b-b4c1-61d61af1f77e,
  abstract     = {Road roughness is a major source of vehicle fatigue. To improve the understanding of vehicle durability, statistical methods are applied to characterise measured road profiles. Different statistical road models are used to generate corresponding synthetic road profiles. Vehicle fatigue is assessed utilising a simple quarter-vehicle model in combination with the Palmgren-Miner damage hypothesis, Basquin's relation and Rainflow counting. Several road realisations (Monte-Carlo simulation) provide an estimate of the expected fatigue damage. The results suggest that actual roads cause more damage than synthetic Gaussian roads, possibly due to occasional road transients (bumps and holes), causing large loads on the vehicle. Thus, a road model being the sum of Gaussian 'noise' and transient events is suggested},
  author       = {Bogsjö, Klas and Forsen, A},
  booktitle    = {Vehicle System Dynamics},
  issn         = {0042-3114},
  keyword      = {vehicle fatigue,road roughness,vehicle durability,road profiles,road surface statistics,statistical road models,quarter vehicle model,Basquin relation,Palmgren-Miner damage hypothesis,transient events,Gaussian noise,synthetic Gaussian roads,Rainflow counting,Monte Carlo simulation},
  language     = {eng},
  pages        = {724--733},
  publisher    = {Swets & Zeitlinger},
  title        = {Fatigue relevant road surface statistics},
  volume       = {41},
  year         = {2003},
}