Condition Monitoring of Railway Crossing Geometry via Measured and Simulated Track Responses

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: WFRF:(Pålsson Björn) > Condition Monitorin...

Details
MARC

Milosevic, Marko,1991Chalmers tekniska högskola,Chalmers University of Technology (author)

Condition Monitoring of Railway Crossing Geometry via Measured and Simulated Track Responses

Article/chapterEnglish2022

Publisher, publication year, extent ...

2022-01-28
MDPI AG,2022
electronicrdacarrier

Numbers

LIBRIS-ID:oai:research.chalmers.se:97d1b3bd-25d4-4d9b-a8e3-85f65af0d1d9
https://research.chalmers.se/publication/528508URI
https://doi.org/10.3390/s22031012DOI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

Notes

This paper presents methods for continuous condition monitoring of railway switches and crossings (S&C, turnout) via sleeper-mounted accelerometers at the crossing transition. The methods are developed from concurrently measured sleeper accelerations and scanned crossing geometries from six in situ crossing panels. These measurements combined with a multi-body simulation (MBS) model with a structural track model and implemented scanned crossing geometries are used to derive the link between the crossing geometry condition and the resulting track excitation. From this analysis, a crossing condition indicator Cλ1-λ2,γ is proposed. The indicator is defined as the root mean square (RMS) of a track response signal γ that has been band-passed between frequencies corresponding to track deformation wavelength bounds of λ1 and λ2 for the vehicle passing speed (f = v/ λ). In this way, the indicator ignores the quasi-static track response with wavelengths pre-dominantly above λ1 and targets the dynamic track response caused by the kinematic wheel-cross-ing interaction governed by the crossing geometry. For the studied crossing panels, the indicator C1-0.2 m,γ (λ1 = 1 and λ2 = 0.2) was evaluated for γ = u, v, or a as in displacements, velocities, and accelerations, respectively. It is shown that this condition indicator has a strong correlation with vertical wheel–rail contact forces that is sustained for various track conditions. Further, model calibrations were performed to measured sleeper displacements for the six investigated crossing panels. The calibrated models show (1) a good agreement between measured and simulated sleeper displacements for the lower frequency quasi-static track response and (2) improved agreement for the dynamic track response at higher frequencies. The calibration also improved the agreement between measurements and simulation for the crossing condition indicator demonstrating the value of model calibration for condition monitoring purposes.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Infrastrukturteknik hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Infrastructure Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Maskinteknik Farkostteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Vehicle Engineering hsv//eng
Condition monitoring
Multi-body simulations
Accelerometer
Condition indicator
3D scan
Railway
Crossing geometry

Added entries (persons, corporate bodies, meetings, titles ...)

Pålsson, Björn,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)palsbjor (author)
Nissen, A.Trafikverket,The Swedish Transport Administration (author)
Nielsen, Jens,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jeni (author)
Johansson, Håkan,1979Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)johho (author)
Chalmers tekniska högskolaTrafikverket (creator_code:org_t)

Related titles

In:Sensors: MDPI AG22:31424-8220

Internet link

Find in a library

Sensors (Search for host publication in LIBRIS)

To the university's database

Find more in SwePub

By the author/editor: Milosevic, Marko ...; Pålsson, Björn, ...; Nissen, A.; Nielsen, Jens, 1 ...; Johansson, Håkan ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Applied Mechanic ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Infrastructure E ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Vehicle Engineer ...

Articles in the publication: Sensors

By the university: Chalmers University of Technology

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se