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Publications (10 of 27) Show all publications
Krishna, V. V., Hossein Nia, S., Casanueva, C. & Stichel, S. (2019). FR8RAIL Y25 running gear for high tonnage and speed. In: P.O. Larsson-Kråik, A. Ahmadi (Ed.), Proceeedings of the International Heavy Haul Association STS Conference 2019: . Paper presented at International Heavy Haul Association STS Conference, on the 10th – 14th June 2019, in Narvik, Norway. (pp. 690-697). Narvik
Open this publication in new window or tab >>FR8RAIL Y25 running gear for high tonnage and speed
2019 (English)In: Proceeedings of the International Heavy Haul Association STS Conference 2019 / [ed] P.O. Larsson-Kråik, A. Ahmadi, Narvik, 2019, p. 690-697Conference paper, Published paper (Refereed)
Abstract [en]

The rolling stock in railway freight transport has traditionally been mainly characterised by lowcost, long lifetime of the fleet, and relatively low requirements on running behaviour. However, the sector inEurope has acknowledged that in order to be competitive there is a need to develop more advanced wagons thatenable to maximise payload and speed in different scenarios, while reducing the overall system costs, includingwheelset and track deterioration. In the Shift2Rail project FR8RAIL, a consortium of wagon manufacturers,wheelset manufacturers, and research centres has worked to develop a new generation of the widely used robustY25 freight running gear, that minimises maintenance costs both on the vehicle and the track by improving thecurving performance and hunting stability. The dynamic behaviour of the proposed solutions has been studiedwith simulations-based EN14363 tests up to 30 tons/axle, and their expected impact on wheel wear and fatiguehas also been predicted, with satisfactory results regarding both damage modes.

Place, publisher, year, edition, pages
Narvik: , 2019
National Category
Vehicle Engineering
Research subject
Järnvägsgruppen - Fordonsteknik
Identifiers
urn:nbn:se:kth:diva-255024 (URN)9780911382709 (ISBN)9780911382716 (ISBN)
Conference
International Heavy Haul Association STS Conference, on the 10th – 14th June 2019, in Narvik, Norway.
Funder
EU, Horizon 2020, 730617
Note

QC 20190827

Available from: 2019-07-12 Created: 2019-07-12 Last updated: 2019-09-03Bibliographically approved
Hossein Nia, S., Casanueva, C., Stichel, S. & Sichani, M. S. (2018). Prediction of rolling contact fatigue (RCF) for iron-ore locomotive wheels; comparison of an alternative contact algorithm with FASTSIM. In: The Dynamics of Vehicles on Roads and Tracks: . Paper presented at 25th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2017, 14 August 2017 through 18 August 2017 (pp. 835-840). CRC Press/Balkema
Open this publication in new window or tab >>Prediction of rolling contact fatigue (RCF) for iron-ore locomotive wheels; comparison of an alternative contact algorithm with FASTSIM
2018 (English)In: The Dynamics of Vehicles on Roads and Tracks, CRC Press/Balkema , 2018, p. 835-840Conference paper, Published paper (Refereed)
Abstract [en]

In this article, a model to estimate the evolution of surface initiated Rolling Contact Fatigue (RCF) is developed and applied to a heavy haul locomotive. To consider the changes in the wheel profile due to wear, a methodology based on Archard’s wear calculation theory is used. The method is based on the load collective concept, which determines a set of dynamic time-domain simulations as representative for the line. For RCF calculations a shakedown based theory is applied locally, using the FaStrip algorithm to estimate the tangential stresses instead of FASTSIM. The differences between the two algorithms regarding damage prediction models are studied. The differences are due to the accumulation of the FASTSIM error in the long-term process. The simulated crack locations and their angles are compared with a five-year field study and good agreements are achieved.

Place, publisher, year, edition, pages
CRC Press/Balkema, 2018
Keywords
Fatigue of materials, Friction, Iron ores, Locomotives, Wheels, Calculation theories, Contact algorithms, Damage prediction models, Locomotive wheels, Long term process, Rolling contact fatigue, Surface-initiated, Tangential stress, Time domain analysis
National Category
Vehicle Engineering
Identifiers
urn:nbn:se:kth:diva-247406 (URN)000468325100052 ()2-s2.0-85061530651 (Scopus ID)9781138035713 (ISBN)
Conference
25th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2017, 14 August 2017 through 18 August 2017
Note

QC20190418

Available from: 2019-04-18 Created: 2019-04-18 Last updated: 2019-06-11Bibliographically approved
Stichel, S., Casanueva, C., Berg, M. & Hossein Nia, S. (2018). Wear and RCF prediction based on improved contact mechanics modelling. In: : . Paper presented at 11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018; Delft; Netherlands; 24-27 September 2018.
Open this publication in new window or tab >>Wear and RCF prediction based on improved contact mechanics modelling
2018 (English)Conference paper, Oral presentation with published abstract (Other academic)
Keywords
wheel-rail contact, RCF, wear
National Category
Vehicle Engineering
Research subject
Vehicle and Maritime Engineering
Identifiers
urn:nbn:se:kth:diva-245040 (URN)
Conference
11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018; Delft; Netherlands; 24-27 September 2018
Note

QC 20190305

Available from: 2019-03-05 Created: 2019-03-05 Last updated: 2019-03-05Bibliographically approved
Hossein Nia, S., S. Sichani, M., Casanueva, C. & Stichel, S. (2018). Wheel life prediction model – an alternative to the FASTSIM algorithm for RCF. Vehicle System Dynamics, 56(7), 1051-1071
Open this publication in new window or tab >>Wheel life prediction model – an alternative to the FASTSIM algorithm for RCF
2018 (English)In: Vehicle System Dynamics, ISSN 0042-3114, E-ISSN 1744-5159, Vol. 56, no 7, p. 1051-1071Article in journal (Refereed) Published
Abstract [en]

In this article, a wheel life prediction model considering wear and rolling contact fatigue (RCF) is developed and applied to a heavy-haul locomotive. For wear calculations, a methodology based on Archard's wear calculation theory is used. The simulated wear depth is compared with profile measurements within 100,000km. For RCF, a shakedown-based theory is applied locally, using the FaStrip algorithm to estimate the tangential stresses instead of FASTSIM. The differences between the two algorithms on damage prediction models are studied. The running distance between the two reprofiling due to RCF is estimated based on a Wohler-like relationship developed from laboratory test results from the literature and the Palmgren-Miner rule. The simulated crack locations and their angles are compared with a five-year field study. Calculations to study the effects of electro-dynamic braking, track gauge, harder wheel material and the increase of axle load on the wheel life are also carried out.

Place, publisher, year, edition, pages
Taylor & Francis, 2018
Keywords
RCF, wear, rolling contact, heavy haul, FASTSIM, FaStrip
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-220340 (URN)10.1080/00423114.2017.1403636 (DOI)000432220800004 ()
Note

QC 20171219

Available from: 2017-12-18 Created: 2017-12-18 Last updated: 2018-05-31Bibliographically approved
Apezetxea, I. S., Perez, X., Casanueva, C. & Alonso, A. (2017). New methodology for fast prediction of wheel wear evolution. Vehicle System Dynamics, 55(7), 1071-1097
Open this publication in new window or tab >>New methodology for fast prediction of wheel wear evolution
2017 (English)In: Vehicle System Dynamics, ISSN 0042-3114, E-ISSN 1744-5159, Vol. 55, no 7, p. 1071-1097Article in journal (Refereed) Published
Abstract [en]

In railway applications wear prediction in the wheel–rail interface is a fundamental matter in order to study problems such as wheel lifespan and the evolution of vehicle dynamic characteristic with time. However, one of the principal drawbacks of the existing methodologies for calculating the wear evolution is the computational cost. This paper proposes a new wear prediction methodology with a reduced computational cost. This methodology is based on two main steps: the first one is the substitution of the calculations over the whole network by the calculation of the contact conditions in certain characteristic point from whose result the wheel wear evolution can be inferred. The second one is the substitution of the dynamic calculation (time integration calculations) by the quasi-static calculation (the solution of the quasi-static situation of a vehicle at a certain point which is the same that neglecting the acceleration terms in the dynamic equations). These simplifications allow a significant reduction of computational cost to be obtained while maintaining an acceptable level of accuracy (error order of 5–10%). Several case studies are analysed along the paper with the objective of assessing the proposed methodology. The results obtained in the case studies allow concluding that the proposed methodology is valid for an arbitrary vehicle running through an arbitrary track layout.

Place, publisher, year, edition, pages
Taylor and Francis Ltd., 2017
Keywords
multibody simulation, railway dynamics, statistical track analysis, Wheel wear prediction, Cost reduction, Costs, Forecasting, Railroad transportation, Railroads, Rails, Vehicles, Characteristic point, Dynamic calculations, Multibody simulations, Quasi-static calculations, Railway applications, Track analysis, Wheel wears, Wheels
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-207290 (URN)10.1080/00423114.2017.1299870 (DOI)000399659300007 ()2-s2.0-85015037686 (Scopus ID)
Note

QC 20170619

Available from: 2017-06-19 Created: 2017-06-19 Last updated: 2017-06-19Bibliographically approved
Prevolnik, R., Casanueva, C. & Hossein Nia, S. (2017). On estimating the risk of wheel damage for wagons with paper rolls considering various dynamic conditions. In: Proceedings of the 11th International Heavy Haul Association Conference IHHA: . Paper presented at 11th International Heavy Haul Association Conference IHHA, 2-6 September, 2017.
Open this publication in new window or tab >>On estimating the risk of wheel damage for wagons with paper rolls considering various dynamic conditions
2017 (English)In: Proceedings of the 11th International Heavy Haul Association Conference IHHA, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Hector Rail AB is a Swedish line haul provider for the European Rail Transport Market. On one line, Hector Rail transports large cylinder-shaped paper rolls of different sizes from Holmsund to Skövde, and compressed recycled paper shaped as cubes back to Holmsund. The wheels of their Y25 bogie wagons are experiencing surface initiated rolling contact fatigue (RCF), which is increasing the maintenance cost and sometimes interrupting the time schedule. In a collaboration with KTH Royal Institute of Technology a study of the risk of developing RCF cracks when comparing different track qualities, load cases, speeds, curves and wheel-rail friction coefficients as well as the consideration of wear is carried out. The results show the difference in surface initiated RCF when applying the different input parameters, including the location along the track where the wheels are likely to initiate RCF, as well as the location of RCF on the wheels. The model also provides the curve cases where the wheels are most likely to initiate RCF. This tool can be used for optimising and further streamlining the operation for freight traffic on any line with respect to wheel damages and planned maintenance.

National Category
Vehicle Engineering
Research subject
Järnvägsgruppen - Fordonsteknik
Identifiers
urn:nbn:se:kth:diva-213732 (URN)
Conference
11th International Heavy Haul Association Conference IHHA, 2-6 September, 2017
Note

QC 20171010

Available from: 2017-09-06 Created: 2017-09-06 Last updated: 2017-10-10Bibliographically approved
Altimira, M. & Casanueva, C. (2017). RAISING AWARENESS ON DIVERSITY AND EQUALITY IN STEM DEGREES IN HIGHER EDUCATION. In: Chova, LG Martinez, AL Torres, IC (Ed.), INTED2017: 11TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE. Paper presented at 11th International Conference on Technology, Education and Development (INTED), MAR 06-08, 2017, Valencia, SPAIN (pp. 1037-1041). IATED-INT ASSOC TECHNOLOGY EDUCATION A& DEVELOPMENT
Open this publication in new window or tab >>RAISING AWARENESS ON DIVERSITY AND EQUALITY IN STEM DEGREES IN HIGHER EDUCATION
2017 (English)In: INTED2017: 11TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE / [ed] Chova, LG Martinez, AL Torres, IC, IATED-INT ASSOC TECHNOLOGY EDUCATION A& DEVELOPMENT , 2017, p. 1037-1041Conference paper, Published paper (Refereed)
Abstract [en]

Higher education environments are becoming more and more diverse, regarding both gender and cultural background, which could pose significant challenges for both students and teachers. In order to raise the topic amongst STEM students, a lecture on Diversity has been implemented in the course Research Methodologies for Engineering Mechanics, where different concepts regarding equality have been introduced and unconscious bias have been explained to the students. The lecture was placed in the middle of the course so that students could reflect back on their previous evaluations and enable them to correct their biases in the second half of the course. Feedback of the whole course has also been compared between the 2016 and 2015 editions, where this lecture was not present. The results show that a lecture in Diversity and Equality is especially useful for female students, strongly supporting its inclusion in the course.

Place, publisher, year, edition, pages
IATED-INT ASSOC TECHNOLOGY EDUCATION A& DEVELOPMENT, 2017
Series
INTED Proceedings, ISSN 2340-1079
Keywords
higher education, diversity and equality, homosociality, unconscious bias, STEM
National Category
Educational Sciences
Identifiers
urn:nbn:se:kth:diva-217957 (URN)000413668601018 ()978-84-617-8491-2 (ISBN)
Conference
11th International Conference on Technology, Education and Development (INTED), MAR 06-08, 2017, Valencia, SPAIN
Note

QC 20171121

Available from: 2017-11-21 Created: 2017-11-21 Last updated: 2017-11-24Bibliographically approved
Casanueva, C., Enblom, R. & Berg, M. (2016). Comparison of wear prediction models for different contact conditions. In: Martin Rosenberger, Manfred Plöchl, Klaus Six, and Johannes Edelmann (Ed.), Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015: . Paper presented at 24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015, Graz, Austria, 17 August 2015 through 21 August 2015 (pp. 871-878). CRC Press
Open this publication in new window or tab >>Comparison of wear prediction models for different contact conditions
2016 (English)In: Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015 / [ed] Martin Rosenberger, Manfred Plöchl, Klaus Six, and Johannes Edelmann, CRC Press, 2016, p. 871-878Conference paper, Published paper (Refereed)
Abstract [en]

 Simulation of wheel and rail wear allows to predict long term profile evolution and thus, study the consequences of wheel damage in the dynamic behaviour of the vehicle, or study future maintenance requirements. Several models have been developed which try to solve the wear issue by relating the energy dissipated in the wheel-rail contact to the worn out material, from which two can be highlighted (Tg/A and Archard) which have significant differences on contact level. Even though, the prediction of long term wheel profile evolution has been validated with these two models, which means that for regular applications they seem to have an equivalent behaviour. In this work similarities and differences between the long term wear prediction methodologies are analysed, discussing their actual limitations. Then, these differences are exploited in specific operational cases to compare their wear prediction performance.

Place, publisher, year, edition, pages
CRC Press, 2016
Keywords
Wheel, Transitions, Simulation
National Category
Vehicle Engineering Tribology (Interacting Surfaces including Friction, Lubrication and Wear) Mechanical Engineering
Research subject
Järnvägsgruppen - Fordonsteknik; The KTH Railway Group - Tribology
Identifiers
urn:nbn:se:kth:diva-186157 (URN)10.1201/b21185-93 (DOI)000385792300090 ()2-s2.0-84973597938 (Scopus ID)978-1-138-02885-2 (ISBN)978-1-4987-7702-5 (ISBN)
Conference
24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015, Graz, Austria, 17 August 2015 through 21 August 2015
Note

QC 20160511

Available from: 2016-05-03 Created: 2016-05-03 Last updated: 2018-01-10Bibliographically approved
Casanueva, C., Dirks, B., Enblom, R., Hossein Nia, S. & Shazamanian Shichani, M. (2016). Integrated simulation of damage: efficient contact modeling, wear-RCF interaction, and long-term evolution. In: ICRI Workshop on Wear and RCF: . Paper presented at ICRI Workshop on Wear and RCF.
Open this publication in new window or tab >>Integrated simulation of damage: efficient contact modeling, wear-RCF interaction, and long-term evolution
Show others...
2016 (English)In: ICRI Workshop on Wear and RCF, 2016Conference paper, Oral presentation with published abstract (Other academic)
Keywords
RCF, wear, rail, wheel, maintenance, modelling, train, railway
National Category
Reliability and Maintenance Mechanical Engineering Vehicle Engineering
Research subject
Järnvägsgruppen - Fordonsteknik
Identifiers
urn:nbn:se:kth:diva-190893 (URN)
External cooperation:
Conference
ICRI Workshop on Wear and RCF
Note

QC 20160829

Available from: 2016-08-18 Created: 2016-08-18 Last updated: 2016-08-29Bibliographically approved
Casanueva, C., Krishna, V. V., Jönsson, R. & Nelldal, B. L. (2016). Payload optimization of articulated wagons considering train length and vehicle dynamic behaviour. Civil-Comp Proceedings, 110
Open this publication in new window or tab >>Payload optimization of articulated wagons considering train length and vehicle dynamic behaviour
2016 (English)In: Civil-Comp Proceedings, ISSN 1759-3433, Vol. 110Article in journal (Refereed) Published
Abstract [en]

The Capacity4Rail EU project aims are improving the competitiveness and reliability of rail freight in order to make it more attractive for modern, more sophisticated market requirements. The work described in this paper, focuses on novel vehicle designs that can account for a higher payload per meter, both from the payload optimization and the vehicle dynamic response point of view. We analyze an articulated spine wagon composed of five car bodies and six bogies, of which four of them are shared between two car bodies. In the work package, there has been an effort to look into the implications of these very long wagons in all aspects of freight operation, and this paper focuses on two of these aspects: the gain in payload by using different configurations, and the analysis of the dynamic response of the running gear. The conclusion is that, from vehicle performance point of view, it is worth exploring the possibility of increasing payload by slightly reducing the dynamic behavior of the system, as the twelve-axle vehicle is much more flexible when it comes to modern multimodal transportation. © Civil-Comp Press, 2016.

Keywords
Capacity, Capacity4rail, Freight, Increased payload, Vehicle dynamics, Y25 running gear, Automobile bodies, Dynamic response, Multimodal transportation, Railroad cars, Vehicle performance, Running gear, Vehicles
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-186754 (URN)2-s2.0-84964324682 (Scopus ID)
External cooperation:
Note

QC 20160516

Available from: 2016-05-16 Created: 2016-05-13 Last updated: 2017-11-30Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-1583-4625

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