Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
On the mechanical behavior of rubber springs for high speed rail vehicles
Univ Castilla La Mancha, Dept Mech Engn, Ave Camilo Jose Cela S-N, E-13071 Ciudad Real, Spain..
Univ Castilla La Mancha, Dept Mech Engn, Ave Camilo Jose Cela S-N, E-13071 Ciudad Real, Spain..
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design. KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group.ORCID iD: 0000-0002-2571-4662
Univ Castilla La Mancha, Dept Mech Engn, Ave Camilo Jose Cela S-N, E-13071 Ciudad Real, Spain..
Show others and affiliations
2018 (English)In: Journal of Vibration and Control, ISSN 1077-5463, E-ISSN 1741-2986, Vol. 24, no 20, p. 4676-4688Article in journal (Refereed) Published
Abstract [en]

There are many engineering design problems that call for rubber components as the best solution. Vulcanized rubber has found its way into all sorts of devices, from the universal automobile pneumatic tire to the ubiquitous compliant bushing. Some high-speed rail vehicle suspensions make use of rubber, not only in the air spring itself, but also in the auxiliary spring. The mechanical characteristics of this component influence vehicle dynamics and, therefore, accurate spring models with which to conduct dynamic analysis would make for powerful design tools. Nevertheless, the mechanical behavior of rubber defies simple modeling on account of stress relaxation, creep, set, viscosity, internal friction, and nonlinear stress-strain relations. Despite the advances in the micromechanical understanding of these phenomena, as well as in the macroscopic modeling of rubber spring behavior, there is ample room for refinement, and this is precisely the goal of this paper. The mechanical behavior of a particular rubber spring for high speed rail vehicles has been characterized. The results reveal the necessary components of the model, and suggest the appropriate procedure for parameter extraction. Our model proposal consists of three elements in parallel: a nonlinear elastic spring; a soft friction element; and a Maxwell viscous component. The characterization procedure takes into account both stress relaxation and nonlinear elasticity. The proposed model accurately reproduces experimental results and may then be used with confidence in any type of numerical simulation. Nevertheless, for this statement to be true, the problem of numerical softening potentially induced by soft friction models should be resolved. The paper will show that a trailing moving average filter, seamlessly tied to the model, wipes out the softening effect.

Place, publisher, year, edition, pages
Sage Publications, 2018. Vol. 24, no 20, p. 4676-4688
Keywords [en]
Rubber springs, force relaxation, creep, smooth friction, viscosity, characterization, simulation
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-235999DOI: 10.1177/1077546317732206ISI: 000445778100003Scopus ID: 2-s2.0-85045298605OAI: oai:DiVA.org:kth-235999DiVA, id: diva2:1256159
Note

QC 20181016

Available from: 2018-10-16 Created: 2018-10-16 Last updated: 2018-10-16Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Berg, Mats

Search in DiVA

By author/editor
Berg, Mats
By organisation
Rail VehiclesVinnExcellence Center for ECO2 Vehicle designThe KTH Railway Group
In the same journal
Journal of Vibration and Control
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 124 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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