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Visar resultat 1 - 5 av 424 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Vibrations in Lightweight Buildings - Perception and Prediction

    Författare :Juan Negreira; Teknisk akustik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Psycho-vibratory evaluation; Vibrations; Timber floors; Lightweight; Measurements; Serviceability criteria; Vibration annoyance; Vibration acceptability; Elastomer; Finite element method; Prediction Tools.;

    Sammanfattning : When the Swedish construction code (in 1994) allowed wooden multi-storey buildings to be built, this type of lightweight construction became popular due to its low cost and ease of construction, and also because wood is a plentiful resource in Sweden. Drawbacks in such buildings are disturbing vibrations and noise propagating in the construction, especially through junctions. LÄS MER

  3. 2. Vibrations in solids : From first principles lattice dynamics to high temperature phase stability

    Författare :Nina Shulumba; Magnus Odén; Igor Abrikosov; Frank Mücklich; Matteo Calandra; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis I introduce a new method for calculating the temperature dependent vibrational contribution to the free energy of a substitutionally disordered alloy that accounts for anharmonicity at high temperatures. This method exploits the underlying crystal symmetries in an alloy to make the calculations tractable. LÄS MER

  4. 3. Rubber component vibrations

    Författare :Mattias Sjöberg; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 4. Rolling Bearing Vibrations : The Effects of Varying Compliance, Manufacturing Tolerances and Wear

    Författare :Staffan Sunnersjö; Jönköping University; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. Difficulties to Read and Write Under Lateral Vibration Exposure : Contextual Studies Of Train Passengers Ride Comfort

    Författare :Jerker Sundström; Shafiquzzaman Khan; Neil J. Mansfield; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lateral vibrations; passenger activities; reading; writing; sitting posture; frequency weighting; rated difficulty; field study; laboratory study; transient vibrations; stationary vibrations.; Vehicle engineering; Farkostteknik;

    Sammanfattning : Many people use the train both as a daily means of transport as well as a working place to carry out activities such as reading or writing. There are, however, several important factors in this environment that will hamper good performance of such activities. LÄS MER