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  • 1.
    Carlsson, Ulf
    et al.
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Frid, Anders
    Gröna Tåget, Trains for tomorrows travellers: Pass-by and Internal Acoustic Noise2011Report (Other academic)
  • 2.
    Nelldal, Bo-Lennart
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Transport and Economics (closed 20110301), Traffic and Logistics (closed 20110301). KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group.
    Sommar, Robert
    KTH, School of Architecture and the Built Environment (ABE), Transport and Economics (closed 20110301), Traffic and Logistics (closed 20110301). KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group.
    Andersson, Peter
    Carlsson, Ulf
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Bark, Peter
    Utvärdering av intermodala transportkedjor: Sammanfattande rapport, SiR-C 20102010Report (Other academic)
  • 3. Orrenius, U.
    et al.
    Carlsson, Ulf
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Attractive train interiors: Minimizing annoying sound and vibration2014In: Noise and Vibration Mitigation for Rail Transportation Systems: Proceedings of the 11th International Workshop on Railway Noise, Uddevalla, Sweden, 9–13 September 2013, Springer Berlin/Heidelberg, 2014, 707-714 p.Conference paper (Refereed)
    Abstract [en]

    A study of annoying sounds and vibrations generated by train interiors is reported. Different types of annoying sounds are discussed with respect to the effects they have on the passengers and a notation for distinguishing annoying sounds on trains is defined. A survey of disturbing sounds and interior vibrations on Swedish intercity trains is also reported. A large majority of the annoying sounds found in the survey were of tapping or rattling character, originating from components like ceiling panels, light covers, cabinet doors, interior sliding doors and foldable tables. For some vehicles the number of annoying sounds and vibration issues related to interiors is substantial also for cars with only a few years in operation. This observation underlines the need for systematic abatement procedures and proactive measures from the manufacturers and operators to ensure comfortable train journeys. A review of processes applied in the automotive sector to control annoying noises is also summarized and opportunities for knowledge transfer to the railway industry are discussed. Finally, best practice design solutions to reduce interior vibrations and annoying sounds from train interiors are summarized in view of the results of the present survey and previous vehicle design experience.

  • 4.
    Wallin, Hans Peter
    et al.
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
    Carlsson, Ulf
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Ross, Urmas
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    El Gaidi, K.
    Learning MATLAB: Evaluation of methods and materials for first-year engineering students2005In: International journal of engineering education, ISSN 0949-149X, Vol. 21, no 4, 692-701 p.Article in journal (Refereed)
    Abstract [en]

    The paper describes the development of a MATLAB course as part of a first-year introductory engineering course 'Perspectives of Vehicle Engineering' in the MSc programme in Vehicle Engineering at the Royal Institute of Technology (KTH) in Stockholm, Sweden. This course is intended to give core engineering knowledge and experience, and to prepare the students for their studies in engineering mechanics and vehicle engineering. The expectation is that the students, upon completion of the MATLAB course, will have acquired the ability to use MATLAB in later courses in the curriculum where MATLAB is chosen to be the primary computational and visualisation tool. The development work was divided into three parts. The first part contained a preparatory phase in which the work was planned, the purpose and objectives formulated, the course content and implementation planned, and suitable instructional materials identified. The next step was to select a student test group to go through a trial run of the course, using the different options available for instructional materials. The experiences obtained from the test group's efforts, and their results, were the basis for carrying out the first year of regular instruction of the MATLAB course. In the third and final phase of the course development, it was given for the first time as an ordinary part of the curriculum for first-year students in the KTH vehicle engineering program. The results and experiences obtained from that 1st year will serve as a basis for modifications to the MATLAB course to be given in later years.

  • 5.
    Wallin, Hans Petter
    et al.
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Carlsson, Ulf
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Åbom, Mats
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Bodén, Hans
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Flow acoustics.
    Glav, Ragnar
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Hildebrand, Robert
    KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
    Sound and vibration2010 (ed. 2., rev. uppl.)Book (Other academic)
1 - 5 of 5
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