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
Estimating the total risk for a sun-kink by measuring wave propagation in the track
RISE, SP – Sveriges Tekniska Forskningsinstitut.
2016 (English)In: Proceedings of the Institution of mechanical engineers. Part F, journal of rail and rapid transit, ISSN 0954-4097, E-ISSN 2041-3017, Vol. 230, no 3, 734-746 p.Article in journal (Refereed) Published
Abstract [en]

A method to estimate the stress-free temperature in a rail by exciting the complete track has been theoretically investigated, by both simple beam theory and by a finite element model. For frequencies below a cut-off frequency, bending waves cannot propagate in the track. The cut-off frequency primarily depends on the stiffness of the lateral ballast. For a given ballast stiffness, the wavelength (or speed) of propagating waves depends on the axial stress in the rail. By first determining the cut-off frequency, the ballast stiffness can be determined. Then, the actual stress can be estimated by measuring the wave speed. By knowing the actual rail temperature, the stress-free temperature is then easily calculated. It is found that stress-free temperatures of 5 °Cshould cause measurable changes in the speed of wave propagation. It is determined that variations in damping of the ballast and stiffness of the pads in the rail clamps do not influence the results. Field measurements show that a track can be excited and propagating waves detected. © Institution of Mechanical Engineers. © IMechE 2014.

Place, publisher, year, edition, pages
2016. Vol. 230, no 3, 734-746 p.
Keyword [en]
dispersion, guided wave, propagating waves, rail, Railway track, stress-free temperature, track buckling, track stiffness, Dispersion (waves), Finite element method, Guided electromagnetic wave propagation, Rails, Stiffness, Wave propagation, Wave transmission, Risk perception
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:ri:diva-27656DOI: 10.1177/0954409714562491Scopus ID: 2-s2.0-84975718153OAI: oai:DiVA.org:ri-27656DiVA: diva2:1059482
Note

References: (1995) Kontroll Av Spänningsfri Temperatur, Statute Book BVF586.10, , Swedish National Railway Administration Sweden: Swedish National Railway Administration; (2007) VERSE, Non-destructive Stress-free Temperature Measuring System (Brochure). Plymouth UK: Vortok International & AEA Technology Rail, , Vortok International & AEA Technology Rail; Li, I., Luo, Y., Brebbia, C.A., Tomii, N., Tzieropoulos, P., Ning, B., CWR track vibration characteristic varying with the change of supporting condition (2012) Computers in Railways XIII: Computer System Design and Operation in the Railway and Other Transit Systems, pp. 745-752. , (eds). Southampton, UK: WIT Press; Li, I., Luo, Y., A dynamic analysis of a continuous welded rail track under longitudinal stress caused by temperature changes (2009) Proc IMechE, Part F: J Rail Rapid Transit, 224 (2), pp. 91-101; Aikawa, A., Sakai, H., Abe, K., Numerical and experimental study on measuring method of rail axial stress of continuous welded rails based on use of resonant frequency (2013) Q Rep RTRI, 54 (2), pp. 118-125; Luo, Y., A model for predicting the effect of temperature force of continuous welded rail track (1999) Proc IMechE, Part F: J Rail Rapid Transit, 213 (2), pp. 117-124; Damljanović, V., Weaver, R.L., Laser vibrometry technique for measurement of contained stress in railroad rail (2005) J Sound Vib, 282, pp. 341-366; Kjell, G., Johnson, E., Measuring axial forces in rail by forced vibrations: Experience from a full-scale laboratory experiment (2009) Proc IMechE, Part F: J Rail Rapid Transit, 223 (3), pp. 241-254; Loveday, P.W., Wilcox, P.D., Guided wave propagation as a measure of axial loads in rails (2010) Proc SPIE, 7650, pp. 1-8. , Article id. 765023; Nucera, C., Phillips, R., Zhu, P., Nonlinear guided waves for neutral temperature measurement in continuous welded rails: Results from laboratory and field tests (2013) Proc SPIE, 8695, pp. 1-12. , Article id. 869528; Ekberg, A., Kabo, E., PRESOL - En Pre-processor för Solkurveanalys (PRESOL - A Pre-processor for Sun-kink Analysis), , Research Report no. 2007-03. Gothenburg, Sweden: Chalmers University, Department of Applied Mechanics; Le Pen, L.M., Powrie, W., Contribution of base, crib, and shoulder ballast to the lateral sliding resistance of railway track: A geotechnical perspective (2011) Proc IMechE, Part F: J Rail Rapid Transit, 225 (2), pp. 113-128; Improved Knowledge of Forces in CWR Track (Including Switches): Ballast Resistance under Three-dimensional Loading, , ERRI D 202/DT 362: 1997; Van, M.A., (1997) Stability of Continuous Welded Rail Track, , PhD Thesis, Delft University of Technology, The Netherlands; Lim, N.-H., Han, S.-Y., Han, T.-H., Kang, Y.-J., Parametric study on stability of continuous welded rail track-ballast resistance and track irregularity (2008) Int J Steel Struct, 8 (3), pp. 171-181

Available from: 2016-12-22 Created: 2016-12-21 Last updated: 2016-12-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus
By organisation
SP – Sveriges Tekniska Forskningsinstitut
In the same journal
Proceedings of the Institution of mechanical engineers. Part F, journal of rail and rapid transit
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 21 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. 2.26.0