Sökning: "Vibration threshold"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Vibration threshold.

  1. 1. Trafikinducerade vibrationer : En studie om busskuddars påverkan på vibrationsnivåer i mark och byggnader.

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Erika Johansson Kling; [2019]
    Nyckelord :Ground vibration; vibration measurement; speed control cushion; traffic; urban planning.; Markvibration; vibrationsmätning; busskudde; trafik; samhällsbyggnad.;

    Sammanfattning : Trafikinducerade vibrationer: En studie om busskuddars påverkan på vibrationsnivåer i mark och byggnader. Erika Johansson Kling I Uppsala används busskuddar som en form av medveten ojämnhet i vägbanan för att sänka hastigheten och öka trafiksäkerheten på olycksdrabbade vägsträckor. LÄS MER

  3. 2. Hi-Vision - en arbetsmiljöstudie

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Mikael Dahlquist; [2019]
    Nyckelord :virtual reality; timmerlasbilar; helkroppsvibrationer;

    Sammanfattning : Ever since the chainsaw was introduced on a broad market during the 1950s, the effects of new technology on efficiency and work environment has been studied. Today we stand before a paradigm shift of how we operate logging cranes on timber trucks. LÄS MER

  4. 3. Remote control of mechanical rat traps based on vibration and audio sensors

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Denis Solak; Amin Storani; [2019]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The main aim with this master’s thesis was to study the possibilities of detecting an event (rat trap going off) by analyzing audio streams from a MEMS (micro-electromechanical systems) microphone or movement patterns from a MEMS accelerometer. To achieve this goal, a small, power efficient and cost efficient embedded system was built with the help of a development board, a MEMS accelerometer, a MEMS microphone and a metal box where the equipment and the rat traps were placed and positioned. LÄS MER

  5. 4. Game engine based auralization of airborne sound insulation

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Jimmy Forsman; [2018]
    Nyckelord :Auralization; Building acoustics; Airborne sound insulation; EN 12354-1; Room acoustics; Audio engines for virtual reality; Game engine;

    Sammanfattning : Describing planned acoustic design by single number ratings yields a weak link to the subjective event, especially when the single number ratings are interpreted by others than experienced acousticians. When developing infrastructure, tools for decision making needs to address visual and aural perception. LÄS MER

  7. 5. Wind-induced transmission of low frequency vibrations for a tall multi-storey wood building

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk akustik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Gustav Spjuth; Louise Åkesson; [2016]
    Nyckelord :acoustic; CLT; FEM; multi-storey; radiation; SPL; vibrations; WIDC.; Technology and Engineering;

    Sammanfattning : The building industry accounts for a large part of the world’s carbon dioxide emissions. At the same time the awareness of sustainable construction and production phase has increased and focus has been directed towards the material wood. LÄS MER