Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration

Ilaria Grossoni, Antonio Ramos Andrade, Yann Bezin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The longitudinal variation of support stiffness is believed to be a key driver for the differential settlement of the ballast. This paper presents an innovative approach to correlate these two variables. In order to overcome the lack of input data, a statistical model is applied and the spatial correlation of the input stiffness data is controlled to generate naturally occurring variations. A large set of simulations is run and the relationship between deterioration rate and support properties is then analysed using log-linear multiple regression models. The results show that it is not only its mean value that has an impact in the long term settlement behaviour, but it is also its longitudinal variability. Also, main results suggest that the speed effect might be more crucial in localized corrective maintenance needs than in preventive maintenance needs.
LanguageEnglish
Title of host publicationThe Dynamics of Vehicles on Roads and Tracks
Subtitle of host publicationProceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015
EditorsJohannes Edelmann, Martin Rosenberger, Klaus Six, Manfred Plöchl
Place of PublicationLondon
PublisherCRC Press
Chapter88
Number of pages9
ISBN (Electronic)9781498777025
Publication statusPublished - 3 May 2016
Event24th Symposium of the International Association for Vehicle System Dynamics - Graz, Austria
Duration: 17 Aug 201521 Aug 2015
Conference number: 24

Conference

Conference24th Symposium of the International Association for Vehicle System Dynamics
Abbreviated titleIAVSD 2015
CountryAustria
CityGraz
Period17/08/1521/08/15

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Deterioration
Stiffness
Preventive maintenance
Statistical Models

Cite this

Grossoni, I., Ramos Andrade, A., & Bezin, Y. (2016). Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration. In J. Edelmann, M. Rosenberger, K. Six, & M. Plöchl (Eds.), The Dynamics of Vehicles on Roads and Tracks : Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015 London: CRC Press.
Grossoni, Ilaria ; Ramos Andrade, Antonio ; Bezin, Yann. / Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration. The Dynamics of Vehicles on Roads and Tracks : Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015. editor / Johannes Edelmann ; Martin Rosenberger ; Klaus Six ; Manfred Plöchl. London : CRC Press, 2016.
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abstract = "The longitudinal variation of support stiffness is believed to be a key driver for the differential settlement of the ballast. This paper presents an innovative approach to correlate these two variables. In order to overcome the lack of input data, a statistical model is applied and the spatial correlation of the input stiffness data is controlled to generate naturally occurring variations. A large set of simulations is run and the relationship between deterioration rate and support properties is then analysed using log-linear multiple regression models. The results show that it is not only its mean value that has an impact in the long term settlement behaviour, but it is also its longitudinal variability. Also, main results suggest that the speed effect might be more crucial in localized corrective maintenance needs than in preventive maintenance needs.",
author = "Ilaria Grossoni and {Ramos Andrade}, Antonio and Yann Bezin",
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Grossoni, I, Ramos Andrade, A & Bezin, Y 2016, Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration. in J Edelmann, M Rosenberger, K Six & M Plöchl (eds), The Dynamics of Vehicles on Roads and Tracks : Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015. CRC Press, London, 24th Symposium of the International Association for Vehicle System Dynamics, Graz, Austria, 17/08/15.

Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration. / Grossoni, Ilaria; Ramos Andrade, Antonio; Bezin, Yann.

The Dynamics of Vehicles on Roads and Tracks : Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015. ed. / Johannes Edelmann; Martin Rosenberger; Klaus Six; Manfred Plöchl. London : CRC Press, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The longitudinal variation of support stiffness is believed to be a key driver for the differential settlement of the ballast. This paper presents an innovative approach to correlate these two variables. In order to overcome the lack of input data, a statistical model is applied and the spatial correlation of the input stiffness data is controlled to generate naturally occurring variations. A large set of simulations is run and the relationship between deterioration rate and support properties is then analysed using log-linear multiple regression models. The results show that it is not only its mean value that has an impact in the long term settlement behaviour, but it is also its longitudinal variability. Also, main results suggest that the speed effect might be more crucial in localized corrective maintenance needs than in preventive maintenance needs.

AB - The longitudinal variation of support stiffness is believed to be a key driver for the differential settlement of the ballast. This paper presents an innovative approach to correlate these two variables. In order to overcome the lack of input data, a statistical model is applied and the spatial correlation of the input stiffness data is controlled to generate naturally occurring variations. A large set of simulations is run and the relationship between deterioration rate and support properties is then analysed using log-linear multiple regression models. The results show that it is not only its mean value that has an impact in the long term settlement behaviour, but it is also its longitudinal variability. Also, main results suggest that the speed effect might be more crucial in localized corrective maintenance needs than in preventive maintenance needs.

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Grossoni I, Ramos Andrade A, Bezin Y. Assessing the role of longitudinal variability of vertical track stiffness in the long-term deterioration. In Edelmann J, Rosenberger M, Six K, Plöchl M, editors, The Dynamics of Vehicles on Roads and Tracks : Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015. London: CRC Press. 2016