Doctoral student (lic) in dynamic train-track-bridge interaction

Royal lnstitute of Technology


October 19, 2022


Project description

Third-cycle subject: Structural Engineering and Bridges

There is a large national and international interest to increase the capacity on existing railway lines, especially to increase axle loads for freight transports. To allow for increased axle loads on existing railway bridges, comprehensive analyses are required. In many cases the load capacity is limited by theoretical exceedance due to dynamic effects, especially for short span bridges. The reason is that the current regulations for the train-track- bridge interaction is very simplified and potentially over-conservative in many cases.

This PhD-project will focus on the dynamic interaction of the coupled train- track-bridge system with application to freight traffic. The work will involve theoretical studies and simulations as well as processing larger quantities of collected data. The aim of the project is to increase the understanding of dynamic effects on bridges caused by freight traffic, especially related to track irregularities.

The candidate will be employed at the division of Structural Engineering and Bridges. The project is a cooperation with the Swedish Transport Administration.

Supervision: Andréas Andersson is proposed to supervise the doctoral student. Decisions are made on admission

What we offer
  • The possibility to study in a dynamic and international research environment.Read more
  • A workplace with many employee benefits and monthly salary according to KTH's Doctoral student salary agreement.
  • A postgraduate education at an institution that is active and supportive in matters pertaining to working conditions, gender equality and diversity as well as study environment.
  • Help to relocate and be settled in Sweden and at KTH.
  • Admission requirements

    To be admitted to postgraduate education (Chapter 7, 39 § Swedish Higher Education Ordinance), the applicant must have basic eligibility in accordance with either of the following:

  • passed a second cycle degree (for example a master's degree), or
  • completed course requirements of at least 240 higher education credits, of which at least 60 second-cycle higher education credits, or
  • acquired, in some other way within or outside the country, substantially equivalent knowledge
  • The candidate should have a degree in civil- or railway engineering with a solid background in mathematics, computational mechanics and structural dynamics. Interest and experience from civil engineering structures is advantageous.

    In addition to the above, there is also a mandatory requirement for English equivalent to English B/6, read more here


    In order to succeed as a doctoral student at KTH you need to be goal oriented and persevering in your work. During the selection process, candidates will be assessed upon their ability to:

  • independently pursue his or her work
  • collaborate with others,
  • have a professional approach and
  • analyse and work with complex issues.
  • After the qualification requirements, great emphasis will be placed on personal competency.

    Target degree: Licentiate degree

    Information regarding admission and employment

    Only those admitted to postgraduate education may be employed as a doctoral student. The total length of employment may not be longer than what corresponds to full-time doctoral education in four years ' time. An employed doctoral student can, to a limited extent (maximum 20%), perform certain tasks within their role, e.g. training and administration. A new position as a doctoral student is for a maximum of one year, and then the employment may be renewed for a maximum of two years at a time.

    Union representatives

    You will find contact information for union representatives on KTH's website.

    Doctoral section (Students' union on KTH Royal Institute of


    You will find contact information for doctoral section on the section's website.


    Apply for the position and admission through KTH's recruitment system. It is the applicant's responsibility to ensure that the application is complete in accordance with the instructions in the advertisement.

    Applications must be received at the last closing date at midnight, CET/CEST (Central European Time/entral European Summer Time).

    Applications must include the following elements:

  • CV including your relevant professional experience and knowledge.
  • Application letter with a brief description of why you want to pursue research studies, about what your academic interests are and how they relate to your previous studies and future goals. (Maximum 2 pages long)
  • Copies of diplomas and grades from previous university studies and certificates of fulfilled language requirements (see above). Translations into English or Swedish if the original document is not issued in one of these languages.Copies of originals must be certified.
  • Representative publications or technical reports. For longer documents, please provide a summary (abstract) and a web link to the full text.
  • Other information

    Striving towards gender equality, diversity and equal conditions is both a question of quality for KTH and a given part of our values.

    For information about processing of personal data in the recruitment process please read here.

    We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

    Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.

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