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Railway Vehicle Dynamics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Transportation and Future Mobility".

Deadline for manuscript submissions: 20 November 2025 | Viewed by 262

Special Issue Editor


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Guest Editor
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
Interests: railway vehicle dynamics; railways; longitudinal train dynamics; multibody simulation; finite element analysis; wheel–rail contact; wear; tread braking

Special Issue Information

Dear Colleagues,

The dynamics of railway vehicles play a crucial role in the overall safety, reliability, and competitiveness of railway systems. The new paradigms of virtual homologation and the recent trends in artificial intelligence techniques have thrusted works in the field, allowing us to explore a wide range of solutions with a significant reduction in testing times. At the same time, the relevance of experimental tests is still unmatched, as numerical models should always be experimentally validated.

The Applied Sciences journal has launched a new Special Issue entitled “Railway Vehicle Dynamics”, aiming to collect scientifically relevant contributions that can bring innovation to the field, addressing several topics including (but not limited to) running stability, safety, traction/braking operations, curving behavior, vibrations, comfort, and wheel–rail contact analysis. Papers should focus on the implementation of numerical/experimental techniques with the aim of optimizing the running dynamics of railway vehicles or improving the current knowledge on the complex relationship between vehicle dynamics and associated phenomena. The Special Issue welcomes papers dealing with different application frameworks, including the following:

  • Design of the main vehicle components;
  • Development of control logics for optimization of traction/braking or curving behavior;
  • Monitoring systems/algorithms for enhanced safety and stability.

Dr. Matteo Magelli
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • running safety
  • running stability
  • virtual homologation
  • numerical methods
  • experimental tests
  • artificial intelligence
  • mechanical design
  • control
  • monitoring

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Published Papers (1 paper)

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Research

22 pages, 2858 KB  
Article
Identification of Railway Vertical Track Alignment via the Unknown Input Observer
by Stefano Alfi, Matteo Santelia, Ivano La Paglia, Egidio Di Gialleonardo and Alan Facchinetti
Appl. Sci. 2025, 15(21), 11332; https://doi.org/10.3390/app152111332 - 22 Oct 2025
Abstract
In this paper, a model-based approach for the identification of the railway vertical track alignment from simulation data is presented. The proposed methodology is based on the application of the unknown input observer algorithm. The model of a conventional train is used to [...] Read more.
In this paper, a model-based approach for the identification of the railway vertical track alignment from simulation data is presented. The proposed methodology is based on the application of the unknown input observer algorithm. The model of a conventional train is used to simulate the acceleration levels that vehicle-mounted sensors (e.g., on the bogies and carbody) would measure during operation. Simulations are carried out at a constant speed on both straight and curved tracks, including different types of track geometry components (namely longitudinal level, alignment, and cross-level) to assess the algorithm capability to identify the input irregularity. The primary focus is on the identification of mean vertical track alignment, a critical irregularity component for safety issues. In the analysed cases, the comparison between the measured and reconstructed signal histories are quite satisfactory, with maximum errors in the order of 15% and 29% along straight and curved tracks. Comparing the frequency content of the signals, a significantly higher degree of accuracy is observed (with maximum errors of 5–10% depending on the track layout), which demonstrates that the proposed methodology is suitable for track irregularity identification and monitoring purposes using an instrumented vehicle. Full article
(This article belongs to the Special Issue Railway Vehicle Dynamics)
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